A block is pulled across a table by a constant force of 9.20 N. If the mass of the block is 2.30kg, how fast will the block be moving after 2.00 seconds? Assume negligible friction.

Answers

Answer 1

Answer:

[tex]8\:\text{m/s}[/tex]

Explanation:

From Newton's 2nd Law, we have [tex]\Sigma F=ma[/tex]. Using this, we can find the acceleration of the object:

[tex]9.20=2.30a,\\a=\frac{9.20}{2.30}=4\:\mathrm{m/s^2}[/tex].

Now that we've found the block's acceleration, we can use the following kinematics equation to find its final velocity after 2 seconds:

[tex]v_f=v_i+at,\\v_f=0+4(2),\\v_f=\boxed{8\:\text{m/s}}[/tex]

*Assumption: The block is initially at rest and has a initial velocity of zero. Otherwise, the question is unsolvable.


Related Questions

What is the amount of work done when JoAnne throws a baseball 2 meters at a force of 40
newtons?

Answers

Answer:

Amount of work done by Joanne = 80 joule

Explanation:

Given:

Displacement of ball = 2 meters

Force applied = 40 newtons

Find:

Amount of work done by Joanne

Computation;

Work done = Force applied x Displacement

Amount of work done by Joanne = Force applied x Displacement of ball

Amount of work done by Joanne = 40 x 2

Amount of work done by Joanne = 80 joule

During which radioactive decay process does the mass number of a nucleus change?
A. Beta Decay (Electron)
B. Beta Decay (Positron)
C. Alpha Decay
D. Gamma Decay

Answers

Answer:

Alpha decay

Explanation:

Answer:

C

Explanation:

Alpha Decay

A person is heterozygous for big ears, what is their genotype?

Answers

./././././././././././././././././././.

it's on the screenshot, apparently it was inappropitae so i couldnt submit it here

Un cuerpo se mueve por una carretera que tiene rozamiento.¿Podríamos aplicar el principio de conservación de la energía mecánica? ¿Qué requisitos se han de cumplir para poder aplicarla?

Answers

Answer:

Sí se puede aplicar el Principio de Conservación de la Energía Mécanica siempre y cuando se considere los efectos de pérdida de energía a causa del rozamiento, de lo contrario, no se cumpliría el requisito de conservación derivado del citado principio de conservación.  

Explanation:

Consideremos que el cuerpo representa nuestro sistema de estudio, el cual se desplaza por una carretera y experimenta rozamiento, significando cambios en la energía cinética y potencial gravitacional. La presencia de rozamiento indica una disipación de la energía del cuerpo, cuya energía mecánica total disminuye, significando un sistema no conservativo.

Sí se puede aplicar el Principio de Conservación de la Energía Mécanica siempre y cuando se considere los efectos de pérdida de energía a causa del rozamiento, de lo contrario, no se cumpliría el requisito de conservación derivado del citado principio de conservación.  

How does a parallel circuit change when a branch is added?

The total resistance increases, so the current in the circuit decreases.
The total resistance decreases, so the current in the circuit increases.
The total resistance increases, so bulbs shine at a lower brightness.
The total resistance decreases, so bulbs shine at a higher brightne

Answers

Sorry I need points to answer questions

HELLPPPPPPP FASTTTTBDJEJDJDJSJJWJWJW

Answers

i think they remain the same, i’m sorry bro i tried

Genes consist portions of _____.

Answers

Chromosomes

Chromosomes are structures within cells that contain a person's genes.

A 19 kg ball has an initial velocity of 10 m/s. How much energy will be transformed into gravitational force?

Answers

Answer:

E = 950 J

Explanation:

The total amount of energy that can be transformed into gravitational energy will be equal to the kinetic energy of the ball at initial state:

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

where, E = Energy = ?

m = mass of the ball = 19 kg

v = initial speed of the ball = 10 m/s

Therefore,

[tex]E = \frac{1}{2} (19\ kg)(10\ m/s)^2[/tex]

E = 950 J

A father is homo….zygou dominant for green eyes, the mother is heterozygous. How many of the offspring will have green eyes?

Answers

Answer:

100%

Explanation:

Father - EE

Mother - Ee

Help help help help help

Answers

I am not sure on the rest but the answer to question 4 is volts. sorry i couldn’t be of more help!

which type of star cluster forms from tightly packed groups or older stars ?
binary
eclipse
globular
open

Answers

the answer is globular :)

Globular star clusters form from tightly packed groups and/or older ancient stars.

What are globular star clusters?

Globular star clusters can be defined as ancient stars packed in a spherical and/or symmetrical shape.

Globular star clusters represent the most common types of groups (i.e., clusters) of ancient stars.

These groups of stars (globular) are characterized to be densest in the center of the cluster.

In conclusion, globular star clusters form from tightly packed groups and/or older ancient stars.

Learn more about globular star clusters here:

https://brainly.com/question/21379923

How does a recessive allele “show up” to be seen?

Answers

Answer:

Recessive alleles only show their effect if the individual has two copies of the allele.  

Explanation:

Dominant and Recessive Alleles If your allele pair is FF or Ff, you will have freckles. The only way you can escape a freckled face is to inherit the recessive gene from each parent, giving you the ff allele pair. In general, recessive alleles show up in your phenotype only if you have two of them.

Please help I have no idea

Answers

Answer:

b

Explanation:

bbbbbbbbbbbbbbvgh c tyvftj xf

S. Explain the washing effects of detergents of soap and why detergents in warm water washes greasy
clothes even better

Answers

Answer:

Soaps and detergents are made from long molecules that contain a head and tail the detergent molecules also help to make the washing process more effective by reducing the surface tension of the water. Surface tension is the force which helps a blob of water on a surface hold its shape and not spread out.

Fundamentally, pressure is defined as force per unit area. What is the source of the force in a gas sample? A) The force is from gravity acting on the particles. B) The force is composed of the sum of the collisions only between gas molecules. C) The force is composed of the sum of the collisions only between the gas molecules and the container. D) The force is composed of the sum of all collisions--between the gas molecules, each other and the container. E) The force was imparted to the container in its initial filling, a transfer of momentum.

Answers

Answer:

Option C

Explanation:

Given

Pressure = Force /Area

For any gas sample, force is defined as basically the force exerted by the gas molecules when they strike the surface (with in which they are contained) and bounce back.

Hence, Option C is the correct

A radioactive decay is illustrated. Which radioactive emission is a product of this decay?


A)Alpha

B)beta

C)gamma

D)positron

Answers

The radioactive decay is shown in the image attached to this answer

Answer:

Alpha

Explanation:

An alpha decay is said to have occurred when the mass number of the daughter nucleus decreases by four units and the atomic number of the daughter nucleus decreases by two units.

If we look at the equation from left to right, we will notice that the mass number of the daughter nucleus decreased by four units and the atomic of the daughter nucleus number by two units compared to that of the parent nucleus leading to the emission of an alpha particle.

Fluorine and chlorine are members of which family?

Answers

Answer:

The halogens are the family of chemical elements that includes fluorine (atomic symbol F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The halogens make up Group VIIA of the Periodic Table of the elements. Elemental halogens are diatomic molecules.

Elements: Fluorine; Iodine; Bromine; Astatine

Explanation:

No links !!!!
Newton's First Law state
For every action there is an equal and opposite reaction.
An object in motion stays in motion unless acted upon by an unbalanced force.
Gravity acts on all objects that have mass.
Force= mass x acceleration

Answers

Answer: an object in motion stays in motion unless acted upon by an unbalanced force

Explanation: this is Newton’s first law of motion, which states that an object, whether in a moving or resting state, will continue to stay in that state unless there is an unbalanced force that changes that state. For a moving object, an example would be friction worth the ground. For a resting object, an example would be the force of a push.

In a motor, electrical current enters through the brushes.


Please select the best answer from the choices provided



T

F
THE ANSWER IS TRUE

Answers

Answer: ITS T

Explanation:

In a motor, electrical current enters through the brushes. TRUE.

You should set a reward for yourself for achieving a goal. A. True B. False

Answers

Answer:

A

Explanation:

Answer:

true

Explanation:

sup

what is matter explain​

Answers

Matter is the Stuff Around You
Matter is everything around you. Atoms and compounds are all made of very small parts of matter. Those atoms go on to build the things you see and touch every day. Matter is defined as anything that has mass and takes up space (it has volume).

The equation below is used to calculate the mechanical advantage of an ideal wheel and axle.


mechanical advantage =
wheel radius
__________
axle radius


A student compares two wheel-and-axle simple machines. Machine 1 has a wheel radius of 50 centimeters, and an axle radius of 10 centimeters. Machine 2 has a wheel radius of 100 centimeters, and an axle radius of 10 centimeters. What is true of these simple machines’ mechanical advantage?
A.
Machine 1’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 2.

B.
Machine 1’s mechanical advantage is greater, which means that this machine can move faster than Machine 2.

C.
Machine 2’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 1.

D.
Machine 2’s mechanical advantage is greater, which means that this machine can move faster than Machine 1.

Answers

Answer:

b

Explanation:

Machine 2’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 1.

Mechanical advantage

The term mechanical advantage is the ratio of the radius of wheel to the radius of the axle for a wheel and axle system.

The true statement about the two machines that were compared; 1 and 2 is that, machine 2’s mechanical advantage is greater, which means that this machine can do more work with less force than Machine 1.

Learn more about mechanical advantage:https://brainly.com/question/16617083

#SPJ2

Alejandro camina 250 metros en linea recta durante 5 minutos y regresa a su mismo camino a su punto de partida en 7 minutos. ¿cual es la distancia total recorrida? ¿cual es la velocidad en m/s? ¿cuanto vale su desplazamiento total?

Answers


Alejandro walks 250 meters in a straight line for 5 minutes and returns to his same path to his starting point in 7 minutes.
Going to the point, he walked 50 meters every minute and going back, he walked 35.71428571428571

PLEASE HELP!! 10 points each!!!

What is alchemy? How is artificial transmutation like alchemy? Use examples to support your answer.

Answers

Answer:

an alchemy is

the medieval forerunner of chemistry, concerned with the transmutation of matter, in particular with attempts to convert base metals into gold or find a universal elixir.

a car has a mass of 200kg. It is on a hill 1000m high. How much gravitational potential energy does the car have?

Answers

Answer:

Explanation:

PE = m * g * h

m = 200 kg

h = 1000 m

g = 9.81

PE = 200 * 9.81 * 1000

PE = 1962000 Joules

How many valence electrons does the hydrogen and oxygen have in the following picture?

Answers

Answer:

can u make the picture less blurry pls

Explanation:

How does space exploration affect the economy of Florida?
A) Since rockets launched from Florida are paid for by the federal government, there is a positive effect on Florida's economy.
B) Since rockets launched from Florida pull tourists away from Disney World and local beaches, there is a negative effect on Florida's economy.
C) Since rockets launched from Florida must be purchased from companies located outside of Florida, there is a negative effect on Florida's economy.
D) Since rockets launched from Florida require hundreds of scientists and engineers to move to the area, there is a positive effect on Florida's economy.

Answers

Answer:

How does space exploration affect the economy of Florida?

A) Since rockets launched from Florida are paid for by the federal government, there is a positive effect on Florida's economy.

b) Find the value of xº from the following figure.
i.
ii.
yo
500 x
хо
2x0​

Answers

Answer:

the value of the question is 1 because of the indicies rule.

Answer:

1

Explanation:

because

how does a force pumb works​

Answers

Answer:

A force pump can be used to raise water by a height of more than 10m, the maximum height allowed by atmospheric pressure using a common lift pump.

In a force pump, the upstroke of the piston draws water, through an inlet valve, into the cylinder. On the downstroke, the water is discharged, through an outlet valve, into the outlet pipe.

A bear fells from 10m long grass
From where the bear is

Answers

he from the 10m long grass
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