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tensa zangetsu [6.8K]

3 years ago

8

The response of an object to the force of gravity is called its __________________? Question 7 options: density volume mass weig

ht

2 answers:

coldgirl [10]3 years ago

5 0

The answer is weight

katovenus [111]3 years ago

5 0

I think your answer is weight and im taking this right now and think i got it right!!

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Before an object can react to a force the object must contain what?

Serggg [28]

Energy I believe. If there is no energy given or taken the object will not react.

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3 years ago

PHYSICS<br> I need help with number two!!!!

EleoNora [17]

Answer:

mgh₁ + ½mv₁² = mgh₂ + ½mv₂²

Explanation:

Initial total energy = final total energy

PE₁ + KE₁ = PE₂ + KE₂

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You exert of force of 75 newtons on a rock. You push and you push, but you can't budge it. You are exhausted! How much work did

sergiy2304 [10]

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3 years ago

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3 years ago

If the car’s speed decreases at a constant rate from 64 mi/h to 30 mi/h in 3.0 s, what is the magnitude of its acceleration, ass

mixas84 [53]

Answer: $3.874 m/s^2$

Explanation:

Given

Car speed decreases at a constant rate from 64 mi/h to 30 mi/h

in 3 sec

$60mi/h \approx 26.8224m/s$

$34mi/h \approx 15.1994 m/s$

we know acceleration is given by $=\frac{velocity}{Time}$

$a=\frac{15.1994-26.8224}{3}$

$a=-3.874 m/s^2$

negative indicates that it is stopping the car

Distance traveled

$v^2-u^2=2as$

$\left ( 15.1994\right )^2-\left ( 26.8224\right )^2=2\left ( -3.874\right )s$

$s=\frac{488.419}{2\times 3.874}$

s=63.038 m

7 0

3 years ago