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QveST [7]
3 years ago
11

A cat accelerates from rest to 10m/s when it sees a dog. This takes 2 seconds. What was the acceleration of the cat

Physics
2 answers:
Nookie1986 [14]3 years ago
5 0
The formula is a= chance in velocity/time
A=10-0/2
A=10/2
A=5 m/s^2 (meters per second squared)
nlexa [21]3 years ago
4 0

Answer :

Acceleration of the cat is a=5\ m/s^2

Explanation:

It is given that,  

Initial speed of the cat, u =0 (at rest)

Final speed of the cat, v = 10

Time taken, t = 2 s

Let a is the acceleration of the car. We know that the rate of change of velocity of an object is called its acceleration. Mathematically, it is given by :

a=\dfrac{v-u}{t}

a=\dfrac{10-0}{2}

a=5\ m/s^2

So, the acceleration of the cat was 5\ m/s^2. Hence, this is the required solution.

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was an American writer, poet, editor, and literary critic. Poe is best known for his poetry and short stories
Art [367]

Answer:

poet

Explanation:

4 0
3 years ago
If you push a crate across a factory floor at constant speed in a constant direction, what is the magnitude of the force of fric
poizon [28]

Answer:

The magnitude of the force of friction equals the magnitude of my push

Explanation:

Since the crate moves at a constant speed, there is no net acceleration and thus, my push is balanced by the frictional force on the crate. So, the magnitude of the force of friction equals the magnitude of my push.

Let F = push and f = frictional force and f' = net force

F - f = f' since the crate moves at constant speed, acceleration is zero and thus f' = ma = m (0) = 0

So, F - f = 0

Thus, F = f

So, the magnitude of the force of friction equals the magnitude of my push.

3 0
3 years ago
A parallel-plate capacitor with only air between its plates is charged by connecting the capacitor to a battery. The capacitor i
Delicious77 [7]

Answer:

3.91

Explanation:

Given that

Final reading of the voltmeter, V2 = 45 v

Initial reading of the voltmeter, V1 = 11.5 v

The dielectric constant k, of a material is usually given as

k = V2/V1

k = 45 / 11.5

k = 3.91

Therefore, the dielectric constant of the material as we've calculated above is sure to be 3.91.

I hope that helps you understand

5 0
4 years ago
A fan blade is rotating with a constant angular acceleration of 11.5 rad/s2. At what point on the blade, as measured from the ax
vichka [17]

Answer:

Alpha = ω^2 R    where R is radius of blade

g = w^2 r      where r is distance from center

ω^2 R = 11.5 ω^2 r

R / r = 11.5 / 9.8 = 1.17

Or r = .852 R

Since the angular acceleration depends on both R and ω it seems that one can only get r as it depends on R

7 0
2 years ago
A block weighing 9.3 N requires a force of 3.7 N to push it along at constant velocity. What is the coefficient of friction for
olga_2 [115]

Answer:

0.398

Explanation:

According to friction, the frictional force is directly proportional to the normal reaction

Ff = nR

Ff is the frictional force

n is the coefficient of friction

R is the reaction

Reaction is equal to the weight

R= W = 9.3N

Fm = Ff = 3.7N

Fm is the moving force

Get the coefficient of friction

n = Ff/R

n = 3.7/9.3

n = 0.398

Hence the coefficient of friction for the surface is 0.398

3 0
3 years ago
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