A 63 kg boy and sled are pulled along level ground with a force of 577 N. The boy and sled
are moving at a constant velocity of 2.4 m/s. What is the size of the frictional force?

Answer:

8/9 parts

Explanation:

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[tex]\boxed{\sf v^2-u^2=2gh}[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{v^2-u^2}{2g}[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{0^2-15.5^2}{2(10)}[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{240.25}{20}[/tex]

[tex]\\ \sf\longmapsto h=12.012m[/tex]

Answer:

A

Explanation:

for ot to be legal the shop owner should sing it

Answer:

The answer is b it's signed by the customer

When you sign it, you have agreed to the deal and will carry out what the deal says. It's a mark of proof that you have agreed to follow it.

Answer:

please share the question

Explanation:

#Batangas

[tex]\\ \tt\longmapsto d=\dfrac{49.07}{8}\times 100[/tex]

[tex]\\ \tt\longmapsto d=6.13(100)[/tex]

[tex]\\ \tt\longmapsto d=613km[/tex]

#Puerto Princesa

[tex]\\ \tt\longmapsto d=\dfrac{58.10}{8}\times 100[/tex]

[tex]\\ \tt\longmapsto d=7.26(100)[/tex]

[tex]\\ \tt\longmapsto d=726km[/tex]

#Davao

[tex]\\ \tt\longmapsto d=\dfrac{39.47}{8}\times 100[/tex]

[tex]\\ \tt\longmapsto d=4.93(100)=493km[/tex]

Answer:

PROCESS BY PLANTS MAKE THIER OWN FOOD WITH THE HELP OF WATER, MINERAL CHLOROPHYLL, CARBON DIOXIDE IN THE PRESENCE OF SUNLIGHT....

I HOPE IT IS HELPFUL

Answer:

The distribution of charge is the result of electron movement. Since conductors allow for electrons to be transported from particle to particle, a charged object will always distribute its charge until the overall repulsive forces between excess electrons is minimized.

Answer:

This is simply the movement and transportation of electrons

Answer: Because it can dissolve in water

Explanation: Logic

Answer:

Both these motions are caused by the Gravitational force of earth.

Explanation:

Both these motions are caused by the Gravitational force of earth.

Answer:

(Your question isn't finished so here is the full question: Identify some sports or activities you can do to improve your overall health and explain how physical activity can improve your physical and emotional health.)

Answer:

Some sports or activities I can do to improve my overall health are running, jump squats, weightlifting, dancing, yoga and helping out my father in the backyard. Physical activity can improve my physical and emotional health are by strengthening bones/building muscles, control overweight and obesity, reducing stress, and improve my mood.

Explanation:

Hope this helps :)

Answer:

Accuracy

Explanation:

Accuracy means making measurements that are close to the value precision means making measurement that are close in value to eachother but not necessarily close to the true value.

I hope this helps! If not sorry.

Answer: 10 m/2^2

F=ma

Explanation:

Force = 1000N

1 N is 1 (kg*m/s^2)

Mass = 100kg

F=ma

a = F/m

a = (1000kg*m/s^20/(100kg)

a = 10 m/s^2

Answer:

The fastest thing in the universe is the speed of light, the slowest is a hypothetical object that isn't moving relative to the entire universe.

Answer:

B. fish

Explanation:

Vacuuming: to suck up something from the ocean. So in this case it would be sucking up whole fish with huge vacuums.

[tex]\\ \sf\longmapsto No\;of\:moles=\dfrac{Given\:mass}{Atomic\:mass}[/tex]

[tex]\\ \sf\longmapsto No\:of\:moles=\dfrac{1.59}{0.0230}[/tex]

[tex]\\ \sf\longmapsto No\:of\:moles=69.13moles[/tex]

Explanation:

u=166m/s, v=0(at it's highest point final velocity is zero), a=9.8m/s², t=8.6s

by the formula, S=ut+½at².

S=[166×8.6+½.×9.8×(8.6)²]. ...by calculation

S = 1427.6+362.404

S=1790.004m

hope this helps you.

Answer:

' In layman's terms, the k variable in Hooke's law (F = -kx) indicates stiffness and strength. The higher the value of k, the more force is needed to stretch an object to a given length. This value is dependent on the object's material alongside its shape and Proportons

Explanation:

Answer: A: The Mass of Object AND D. The amount of motion it’s particles have

up down all around

yuh i said

up down all around

Answer:

36 km / hr

Explanation:

velocity final = velocity initial + accel * time

                             20 m/s     + (-2)*5                ( 20 m/s = 72 km/hr)

                                10 m/s     ( or 36 km/hr)

Answer/Explanation:

In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration.

A concentration refers to a subject or study within a specific major. As part of the degree coursework, concentration classes count toward your major requirements as well.

Answer:

I've heard of many different names of isotopes of carbon, and they're Carbon-14, Deuterium, Hydrogen-1, Oxygen-18, boron-11, Nitrogen-14, and Neon-20.

Answer:

80 kg weighs 80 kg x 9.8 m/s2 = 784 kg m/s2, or 784 Newtons. The surface gravity of Mercury is 0.39 that of Earth's (table 10-1), so 80 kg weighs 784 N x 0.39 = 306 N.

Explanation:

I hope that helps you

Considering the definitipn of current, voltage, power, and Ohm's law,

The flow of electricity through an object, such as a wire, is known as current (I). Its unit of measurement is amps (A). So current is a measure of the speed at which the load passes through a given reference point in a specified direction.

The conductive force (electrical pressure) behind the flow of a current is known as voltage and is measured in volts (V) (voltage can also be referred to as the potential difference or electromotive force). That is, voltage is a measure of the work required to move a charge from one point to another.

Resistance (R) refers to the resistance or opposition that an element has to the passage of electric current. It is represented by the symbol Ω and indicates the resistance that an element offers to the passage of electricity.

This means that the greater the resistance to the passage of current, the lower the intensity or amount of electricity that passes through this conductor.

The resistance that is measured in ohms.

Ohm's law indicates that the current through a circuit is directly proportional to its voltage or voltage and inversely proportional to the resistance it presents.

Mathematically, Watt's law is expressed:

[tex]I=\frac{V}{R}[/tex]

So if you want to find resistance, the expression for its calculation is:

[tex]R=\frac{V}{I}[/tex]

In this case, you know:

Replacing:

[tex]R=\frac{5.26 V}{0.41 A}[/tex]

Solving:

R= 12.8 ohms

Habiba is right. The resistance is 12.8 ohms.

Learn more:

Answer:

5.8 or 5.77

Explanation:

I'm not sure

Answer:

[tex]s = \frac{d}{t} = \frac{60}{4} \\ \boxed{speed = 15m. {sec}^{ - 1} }[/tex]

Answer:

15 meters per second

Explanation:

Answer:

Work equals to force times distance

Explanation:

the equation would be work=force*distance

Answer:  In particular, electron degeneracy pressure is what supports white dwarfs against gravitational collapse, and the Chandrasekhar limit (the maximum mass a white dwarf can attain) arises naturally due to the physics of electron degeneracy.

Explanation:

Degeneracy pressure keeps a white dwarf from collapsing under its own gravity.

Electron degeneracy pressure is a particular manifestation of the more general phenomenon of quantum degeneracy pressure.

The maximum mass that a white dwarf can support against collapse is 1.4 solar masses due to the Chandrasekhar limit.

To learn more about White dwarf here

https://brainly.com/question/2624737?

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