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patriot [66]
3 years ago
15

How long dose it take to accelerate an object from rest to 12m/s if acceleration was 3m/s2?

Physics
2 answers:
lakkis [162]3 years ago
7 0
2 seconds longer because 3m/s is squared and 12m/s isn’t squared I’m pretty sure at least
Igoryamba3 years ago
3 0
From rest to 12 with an acceleration of 3 ...
0, 3, 6, 9, 12

It takes 4 seconds
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A skateboarder with a mass of 45 kilograms is riding on a skateboard with a mass of 2.5 kilograms. What should be the velocity o
klasskru [66]
So momentum is just velocity times mass, this means Momentum = Velocity x Mass.
We can rearrange this to be Velocity = Momentum/Mass.

Since we know momentum and mass we can now solve.

Velocity = 264/(45+2.5)
              = 5.56 m/s
5 0
2 years ago
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A glass of juice at 20°C was kept in the open. After 30 minutes, the temperature of the Juice remained the same. Which statement
devlian [24]

The answer would be B the temperature of the juice was the temperature of the surrounding air

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3 years ago
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A bullet is fired through a wooden board with a thickness of 9.0 cm. The bullet hits the board perpendicular to it, and with a s
gtnhenbr [62]

Answer:

-387883.3 m/s²

0.000286168546055 seconds

Explanation:

t = Time taken

u = Initial velocity = 370 m/s

v = Final velocity = 259 m/s

s = Displacement = 9 cm

a = Acceleration

v^2-u^2=2as\\\Rightarrow a=\dfrac{v^2-u^2}{2s}\\\Rightarrow a=\dfrac{259^2-370^2}{2\times 9\times 10^{-2}}\\\Rightarrow a=-387883.3\ m/s^2

The acceleration of the bullet is -387883.3 m/s²

v=u+at\\\Rightarrow t=\dfrac{v-u}{a}\\\Rightarrow t=\dfrac{259-370}{-387883.3}\\\Rightarrow t=0.000286168546055\ s

The time taken is 0.000286168546055 seconds

4 0
3 years ago
All of the following steps are included in a self-modification program except __________. A. specifying target behavior B. desig
Y_Kistochka [10]

Answer:

C)focusing on one goal at a time

Explanation:

Self-modification programs could be regarded as a program that help individual in managing unwanted as well as dysfunctional behavioral responses whenever they are going through a problem and try to deal with it. For instance the dysfunctional behavioral response for someone with a panic attack is avoidance. Some of the the steps that are involved in in a self-modification program are;

✓ specifying target behavior ✓designing a program

✓ gathering data about target behavior

8 0
2 years ago
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Three rocks with masses of 1 kg, 5 kg, and 10 kg fall from the same height.
Naily [24]
Answer:
The 10 kg rock has more inertia than the other two rocks.


Explanation
4 0
2 years ago
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