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pentagon [3]
2 years ago
14

Two rocks, A and B, are thrown horizontally from the top of a cliff. Rock A has an initial speed of 10 meters per second and roc

k B has an initial speed of 20 meters per second. How would you describe the time it takes for the rocks to reach the ground and the horizontal distance they travel?
Physics
1 answer:
maria [59]2 years ago
4 0

Answer:

i need help

Explanation:

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What is the work energy transfer equation?
rosijanka [135]

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How much work does a 60kg person do in walking up 5m of stairs
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In the context of energy transfers with hot and cold reservoirs, the sign convention is that _______________.
Likurg_2 [28]

Answer:

B. QC > 0; QH < 0

Explanation:

Given that there are two reservoir of energy.

Sign convention for heat and work :

1.If the heat is adding to the system then it is taken as positive and if heat is going out from the system then it is taken as negative.

2. If the work is done on the system then it is taken as negative and if the work is done by the system then it is taken as positive.

From hot reservoir heat is going out that is why it is taken as negative

Q_H

From cold reservoir heat is coming inside the reservoir that is why it is taken as positive

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That is why the answer will be

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8 0
3 years ago
Sam is walking at 2m/s down the hallway when he realized he will be late to class. He speeds up to 4m/s and makes it to English
Salsk061 [2.6K]

Answer:

.5 m/s²

Explanation:

a= (vf-vi)/t

a= (4-2)/4

a=2/4

a= .5 m/s²

8 0
3 years ago
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