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zmey [24]
3 years ago
7

A 7kg object is dropped on Earth,. Assuming it has not yet hit the ground, what is the velocity of the object after 2 seconds of

falling?

Physics
2 answers:
kirza4 [7]3 years ago
7 0
The answer would be 9.8 meters/ sec^2.

kap26 [50]3 years ago
3 0
Based on my knowledge the answer would be 9.8 sec
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What is the force of gravity for a 12 kg turkey?<br><br> Please help asap
pogonyaev

Answer: 117.6N

Explanation:

By the second Newton's law, we know that:

F = m*a

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Then we just can input that acceleration in the above equation, and also replace m by 12kg, and find that the force due the gravity is:

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2 years ago
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Lana71 [14]

Answer:

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3 0
3 years ago
Q7 Describe two types of atomic change that produce electromagnetic<br> waves.
Crank
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7 0
2 years ago
A system absorbs 194 kj of heat and the surroundings do 120 kj of work on the system. internal eneergy change
notsponge [240]
We can solve the problem by using the first law of thermodynamics, which states that:
\Delta U = Q-W
where
\Delta U is the change in internal energy of the system
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W is the work done by the system

In our problem, the heat absorbed by the system is Q=+194 kJ, while the work done is W=-120 kJ, where the negative sign means the work is done by the surroundings on the system. Therefore, the variation of internal energy is
\Delta U= Q-W=+194 kJ - (-120 kJ)=+314 kJ
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