what is SI unit of speed​

Answers

Answer 1

Answer:

m/s

Explanation:

The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.

Answer 2

m/s

which is also written as

ms-¹

The above mentioned symbols are said as 'meter per second'

hope it helps!


Related Questions

A circus performer wants to land in a net 5 meters to the right of where she will let go of the trapeze. If she is 10 meters above the net, how fast must she be moving horizontally when she lets go? Round your final answer to three significant figures.

Answers

Answer:

Assuming no air friction,

the time it takes to fall 10 m = t = √2h/g = √(20/9.8) = 1.43 s

horizontal distance = 5 m

horizontal speed = distance/time = 5/1.43 = 3.5 m/s  ANS

Explanation:

i hope this helps!

Describe 3 physical properties of this object (color, state of matter, shape, size, hardness, etc)

Answers

Answer: The color is orange, the state of matter is liquid

Explanation:

the color is orange, the shape is a cylinder, it is a liquid

The oxygen side of a water molecule is

Answers

The answer is Slightly negative

Rutherford tracked the motion of tiny, positively charged particles shot through a thin sheet of gold foil. Some particles traveled in a straight line and some were deflected at different angles.

Answers

The question is incomplete, the complete question is;

Rutherford tracked the motion of tiny, positively charged particles shot through a thin sheet of gold foil. Some particles traveled in a straight line and some were deflected at different angles. Which statement best describes what Rutherford concluded from the motion of the particles? Some particles traveled through empty spaces between atoms and some particles were deflected by electrons. Some particles traveled through empty parts of the atom and some particles were deflected by electrons. Some particles traveled through empty spaces between atoms and some particles were deflected by small areas of high-density positive charge in atoms. Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.

Answer:

Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.

Explanation:

Rutherford first proposed the nuclear model of the atom after his landmark experiment.

In this experiment, alpha particles from a source was focused on a thin gold foil. Some of the particles passed through empty spaces within the atom but were deflected at different angles by a small area of high-density positive charge within an atom which Rutherford later called the atomic nucleus.

Hence the answer above.

A hot air balloon traveled 4 hours at a speed of 200 km/hr. What distance did it travel?

Answers

Distance = speed * time
4 hours * 200 km/hour
200 km to miles: 124.274
4 * 124.274 = 497.096 miles

Giving brainliest!! if you answer correctly :) (30pts)

Answers

Answer:

option A 4kg is your answer

Explanation:

given

mass(m)=?

velocity (v)=5m/s

we have

kinetic energy =50J

1/2 ×{m×v²)=50

m×5²=50×2

m=100/25=4 kg

Having some trouble with this one :/

An object has a kinetic energy of 50 J and a velocity of 5 m/s, what is the mass of the object?

Answers

Answer:

Mass, M = 4 kilograms.

Explanation:

Given the following data;

Kinetic energy = 50 J

Velocity = 5 m/s

To find the mass of the object;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Making mass the subject formula;

[tex] M = \frac{2K.E}{V^{2}}[/tex]

Substituting into the equation, we have;

[tex] M = \frac{2*50}{5^{2}}[/tex]

[tex] M = \frac{100}{25}[/tex]

Mass, M = 4 kg

4-08 t 1 - / S P = 1 / P = S 1 S= P Def. of Speed​

Answers

Answer:

what do I answer? not enough information

A student has two identical sheets of paper. He crumples one up into a small ball. If he drops the sheet of paper and the ball of paper off a building at the same time, which of the following statements describes the result?
A. The sheet of paper because it is more affected by gravity.
B. The ball of paper hits the ground first because it is more affected by gravity
C. The sheet of paper and the ball of paper hit the ground at the same time.
D. The ball of paper hits the ground first because it has less surface area.​

Answers

Answer:

B

Explanation:

basically, because the ball "weighs" more now, it will hit the ground quicker. so technically gravity is more affective towards it. the piece of paper kind of floats it's way down. gravity isn't pushing on one force more, but because because the ball weighs more, it technically would be said so. hope this helps!

Answer:

the ball of paper, because it has less surface area.

Explanation:

PLEASE HELPP I NEED TO PASS THIS !!

Answers

Option D is correct.

What are the independent and dependent variables in a circuit?

Answers

Answer:

Ideal independent sources can be batteries, DC generators or time-varying AC voltage supplies from alternators.

current dependable

Explanation:

Independent voltage sources supply a constant voltage that does not depend on any other quantity within the circuit. Dependent Variable is the voltage V. Control Variables are the material, length, cross section area and temperature of the wire.

Which two planets have the closest average temperature?

Answers

Answer: The planets that have the closest average temperature is

1.) Mercury which is 800 degrees Fahrenheit

2.) Venus which is about 880 degrees Fahrenheit

Hope this helps :)

The planets Mercury and Venus has the closest average temperature

What are Planets?

A planet is an astronomical object that orbits a star or stellar remnant that is large enough to be rounded by gravity, but not so large as to trigger thermonuclear fusion, and that is free of planetesimals in its locality

Planets are generally divided into two main types: large, low-density gas giants and smaller, rocky terrestrials.

In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn, Uranus, and Neptune

Given data ,

Let the first planet be represented as A

Let the second planet be represented as B

Now , the planets A and B have similar average temperature

where , the planets can have negative as well has very high temperatures

Now , when A = Mercury and B = Venus

Venus has 864 degrees Fahrenheit (462 degrees Celsius)

And , Mercury has 800 degrees Fahrenheit (430 degrees Celsius)

So , both Venus and Mercury has similar temperatures

Now , when A = Neptune and B = Uranus

Neptune has minus 353 degrees Fahrenheit (minus 214 degrees Celsius)

Uranus has minus 374 degrees Fahrenheit (minus 224 degrees Celsius)

So , both Neptune and Uranus has similar temperatures

Hence , the planets are Venus and Mercury

To learn more about planets click :

https://brainly.com/question/29765555

#SPJ6

An observer in the Northern Hemisphere watches the sky for several hours. Due to the motion of Earth, this observer notices that the stars near the north celestial pole appear to move An observer in the Northern Hemisphere watches the sky for several hours. Due to the motion of Earth, this observer notices that the stars near the north celestial pole appear to move from left to right. nearly vertically upward. counter-clockwise around the celestial pole. from right to left.

Answers

Answer:

counter clockwise

Explanation:

The observer in the Northern Hemisphere will notice that the stars near the NCP to move counter-clockwise

Counter - clockwise : The observer will observe this because the earth movement when viewed from the North pole is in a counterclockwise direction, hence the stars will appear to move in an ant-clockwise direction

A child squeezes a pillow over his ears during and thunderstorm. Which wave interaction helps decrease the sound of the thunder?

Answers

Answer:

Absorption

Explanation:

What are 4 physical properties for the bear

Answers

Answer:

A bear normally has a short, thick neck, a rounded head, a pointed muzzle, short ears, and small eyes. Some species have round faces. Bears have poor eyesight, and most have only fair hearing.

Explanation:

Modern Bears are characterized with large body and stocky legs, a long snout, shaggy hair, plantigrade paws with five non-retractile claws and a short tail.

Grizzly bears (Ursus arctos horribilis) have concave faces, a distinctive hump on their shoulders, and long claws about two to four inches long. Both the hump and the claws are traits associated with a grizzly bear's exceptional digging ability. Grizzlies are often dark brown, but can vary from blonde to nearly black.

The brown bear has a slight hump above its shoulder, round ears, a long snout and big paws with long, curved claws that it uses for digging. Unlike the black bear, it can't climb trees. It can weigh between 350-1,500 pounds. When standing on its hind legs it can be up to 5 feet tall.

Hope this helps     :)

(I didn't know which type of bear so i did brown bear and grizzly bear)

A long solenoid that has 920 turns uniformly distributed over a length of 0.380 m produces a magnetic field of magnitude 1.00 10-4 T at its center. What current is required in the windings for that to occur?

Answers

Answer: 0.0328 A

Explanation:

Given

No of turns [tex]N=920[/tex]

Length of solenoid [tex]L=0.380\ m[/tex]

Magnetic field [tex]B=10^{-4}\ T[/tex]

the magnetic field at the center of the solenoid is

[tex]\Rightarrow B=\mu nI=\mu \dfrac{N}{L}I[/tex]

Putting values we get

[tex]\Rightarrow 10^{-4}=4\pi \times 10^{-7}\times \dfrac{920}{0.380}\times I\\\\\Rightarrow I=\dfrac{0.380\times 1000}{920\times 4\pi}=0.0328\ A[/tex]

Help please ASAP ONLY 1 question

Answers

C!! A brick to a house

A car is traveling 50 mph. It leaves Boston, Massachusetts at 5 a.m. and is
traveling to Hartford, Connecticut, which is 100 miles away. Without traffic
problems or stops, about what time should the car arrive in Hartford?

Answers

7 A.M
I’m pretty sure that’s it

For two vectors A and B.A+B =A-B, if and only if??​

Answers

Answer:

[tex]\vec{A} + \vec{B} = \vec{A} - \vec{B}[/tex] if and only if [tex]\vec{B}[/tex] is a zero vector.

Explanation:

An equation is true if and only if adding the same value to both sides of the equation (the value needs to be compatible) gives an equation that is also true.

Start with the [tex]\vec{A} + \vec{B} = \vec{A} - \vec{B}[/tex].

This equation is true if and only if [tex]\left(\vec{A} + \vec{B}\right) + \vec{B} = \left(\vec{A} - \vec{B}\right) + \vec{B}[/tex] ([tex]\vec{B}[/tex] is added to both sides of the original equation.)

Vector addition and subtraction are associative. Therefore, [tex]\left(\vec{A} + \vec{B}\right) + \vec{B} = \left(\vec{A} - \vec{B}\right) + \vec{B}[/tex] if and only if [tex]\vec{A} + \left(\vec{B} + \vec{B}\right) = \vec{A} + \left(- \vec{B} + \vec{B}\right)[/tex], which is equivalent to [tex]\vec{A} + 2\, \vec{B} = \vec{A}[/tex].

[tex]\vec{A} + 2\, \vec{B} = \vec{A}[/tex] if and only if [tex]\left(-\vec{A}\right) + \vec{A} + 2\, \vec{B} = \left(-\vec{A}\right) + \vec{A}[/tex] ([tex]\left(-\vec{A}\right)[/tex]is added to both sides of this equation,) which is equivalent to [tex]2\, \vec{B} = \vec{0}[/tex].

[tex]2\, \vec{B} = \vec{0}[/tex] if and only [tex]\displaystyle \frac{1}{2} \cdot \left(2\, \vec{B}\right) = \frac{1}{2} \cdot \vec{0}[/tex], which is equivalent to [tex]\vec{B} = \vec{0}[/tex]. That is: [tex]\vec{B}[/tex] is the zero vector.

In other words:

[tex]\begin{aligned}& \vec{A} + \vec{B} = \vec{A} - \vec{B}\\ &\iff \left( \vec{A} + \vec{B}\right) + \vec{B} = \left(\vec{A} - \vec{B}\right) + \vec{B} \\ &\iff \vec{A} + \left(\vec{B} + \vec{B}\right) = \vec{A} + \left(- \vec{B} + \vec{B}\right) \\ & \iff \vec{A} + 2\, \vec{B} = \vec{A} \\ & \iff \left(-\vec{A}\right) + \vec{A} + 2\, \vec{B} = \left(-\vec{A}\right) + \vec{A} \\ &\iff 2\, \vec{B} = \vec{0} \\ &\iff \frac{1}{2} \cdot 2\,\vec{B} = \frac{1}{2} \cdot \vec{0} \\ &\iff \vec{B} = \vec{0}\end{aligned}[/tex].

Hence, [tex]\vec{A} + \vec{B} = \vec{A} - \vec{B}[/tex] if and only if [tex]\vec{B}[/tex] is the zero vector.

WILL GIVE BRAINLIST QUICK!!! How does biodiversity support different varieties of species? (please put short answer)

Answers

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

which type of thermometer is used to measure the temperature of a very hot object and why?​

Answers

Answer:

Pyrometer, device for measuring relatively high temperatures, such as are encountered in furnaces. Most pyrometers work by measuring radiation from the body whose temperature is to be measured. Radiation devices have the advantage of not having to touch the material being measured.

Explanation:

How much work (MJ) must a car produce to drive 125 miles if an average force of 306 N must be maintained to overcome friction?

Answers

Answer:

The right solution is "61.557 MJ". A further explanation is given below.

Explanation:

The given values are:

Force,

F = 306 N

Drive,

D = 125 miles,

i.e.,

  = 201168

meters

As we know,

The work done will be:

= [tex]F\times S[/tex]

On substituting the given values, we get

= [tex]306\times 201168[/tex]

= [tex]61557408 \ J[/tex]

On converting it in "MJ", we get

= [tex]61.557\times 10^6 \ J[/tex]

= [tex]61.557 \ MJ[/tex]

What is the equivalent resistance of the circuit?

Answers

Answer:

Option D. 5.45 Ω

Explanation:

From the question given above, the following data were obtained:

Resistance 1 (R₁) = 10 Ω

Resistance 2 (R₂) = 20 Ω

Resistance 3 (R₃) = 30 Ω

Voltage (V) = 120 V

Equivalent resistance (R) =?

The equivalent resistance can be obtained as follow:

1/R = 1/R₁ + 1/R₂ + 1/R₃

1/R = 1/10 + 1/20 + 1/30

Find the least common multiple (lcm) of 10, 20 and 30. The result is 60

Divide 60 by each of the denominators and multiply by their numerators respectively. We have:

1/R = (6 + 3 + 2)/60

1/R = 11/60

Invert

R = 60/11

R = 5.45 Ω

Thus, the equivalent resistance in the circuit is 5.45 Ω

Explain what ionisation is and why it is dangerous

Answers

Ionisation: the loss or gain of an electron

It is dangerous because cells that have been ionised can either die, or can mutate incorrectly, which might cause cancer.

A car starts at 25 m/s and then slows down at 13 m/s in 5 seconds. What is the acceleration of the car? What does the acceleration indicate?

Answers

Answer:

a=2.4m/s^2

Explanation:

Use V=vi+at

So, 13=25+a5

13-25=a5

[tex]\frac{-12}{5}[/tex]=a

a=2.4m/s^2

the speed of an electric locomotive is 90kmh .express this speed in m/s with method​

Answers

Answer:

24.3 m/s

Explanation:

1 kmh = 0.27 m/s, that makes a conversion ratio of 0.27/1kmh

[tex]\frac{90 kmh}{1}[/tex] x [tex]\frac{0.27 m/s}{1 kmh}[/tex]

The "kmh" n the top and bottom cancel out. And  then you just multiply the top 90 x 0.27 and the bottom 1 x 1 to get

[tex]\frac{24.3 m/s}{1}[/tex]

and since its over 1 its just 24.3 m/s

who Henry Mosléy?!!!​

Answers

Answer:

Henry Moseley was an English physicist whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number.

.) Which of the following statements is true?
a) A scalar quantity can be added to a vector
b) It is possible for the magnitude of a vector to equal zero even though one of its components
is non-zero
c) Scalar quantities are path dependent, while vectors are not.
d) Scalar quantities and vector quantities can both be added algebraically

Answers

Im pretty sure B is the correct answer. I hope that helped you.

Give an example of an atom that will give up its outermost electron easily. Explain why you chose this atom.

Answers

Answer:

Cesium (Cs)

very low electronegativity

there are a bunch of cool videos online about Cesium reacting with water

most are faked but the general idea is a cool one as Cesium very quickly and easily gives up it's one and only outermost (or valence) electron

Explanation:

What is the weight of an astronaut with a mass of 75 kg on the moon? The gravitational field strength on the moon is 1.6 Nkg-1.

Answers

okay this is kinda easy

What is the gravitational field strength on the moon?

The Moon has a gravitational field strength of 1.6 N/kg.

Other Questions
1/2 or 50% of the European immigrants were what? French Italian Syrian Japanese name the system of which each of the following organ belong Blood, Eye, uterus Three less than a number is 14 more than 2 times that number. What is the number? number of atoms of each element potassium chlorate? what an expression that is equivalent to 7/8 In the garden, the ratio of roses to daisies is 2:5. There are 40 roses. How many daisies are there? help me plzthx if you do PLEASE HURRY I WILL GIVE BRAINLEIST 6x7=2x+13Rent-A-Tent rents party tents for a flat fee of $365 plus $125 a day. Capital Rentals rents party tents for a flat fee of $250 plus $175 a day. Delia wrote the following equation to find the number of days for which the total cost charged by the two companies would be the same. 365x+125=250x+175Find and explain the error in Delias work. Then write the correct equation.2x+14=4x6Ten less than 3 times a number is the same as the number plus 4. Six times a number plus 4 is the same as the number minus 11.the product of 3 and a number minus 10 is the same as four times the numberthe sum of a number and 6 is the same as the number times 11..Shawns Rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas Surf Shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit. Write and solve an equation to determine the rental period in hours for which the charges for Shawns Rentals will be the same as the charges for Darlas Surf Shop. Explain the steps of your solution. This week at the farmer's market the price of oranges per pound has decreased by 20% compared to last week. If the price of oranges this week is $3.89, which equation would represent the price of oranges per pound last week, p? Which of the following is not accurate about genetic mutations? A. Mutations can be harmful & may result in humans developing various geneticconditions,B. Mutations can result in proteins becoming non-functional, malfunctioning, or notchanging how they function.C. Mutations are caused by mutagens, which are substances that cause changes in genesequencesD. Mutations always cause changes in the amino acid sequence & therefore negativelyaffect the protein. tu amid le petit village ou habite ton oncle!! LOOK AT PICTURE Lee el prrafo y escoge la opcin que contesta la pregunta. Read the paragraph and choose the option that answers the question.Cuando vas a Chile, no comas solo en el restaurante del hotel. Chile tiene una cultura muy rica con sabores culinarios nicos. No faltes las delicias de un viaje por el miedo de probar algo nuevo. Lo ms importante es probar la comida autntica de la regin. Prueba la comida de la calle y del mercado. Si el puesto est limpio, el plato est caliente, y hay mucha gente local, no es un riesgo y por seguro es delicioso.What is the purpose of the information in the paragraph? Suggest what restaurants to go to when traveling in Chile. Suggest trying a variety of new local foods outside of the hotel in Chile. Provide possible risks of eating on the street in Chile. Provide suggestions on what traditional dishes to try in Chile. plz help me due in 30min what is the answer to x+5=10 Taylor noticed that for the rectangle below she could multiply 2 times 3 to get its area of 6 square inches. How else could she find the area? 1Select the correct answer.What natural resource was discovered in the late 1800s before Oklahoma became a state, significantly increasing the value of the land?.oil,natural gas.salt minesODcoalResetNext Hola alque me este dando (Gracias,mas inteligente yo tambien le estare dando al que me de quien se anima?Hello to the one who is giving me (Thanks, brain list) I will also be giving to the one who is encouraged? (, ? How many grams are in 26 moles ofmagnesium hydroxide? How did the U.S. West change during the course of the Civil War? What is one effect of that change What part of the food. chain is a pine?a:primary consumerb:secondary consumer c:herbivore d:producer Solve for x and y simultaneously Pls help me