7. While building its nest, a bird drops á stick from a branch. If the branch takes 1.5 s to reach the ground, how high is the nest?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers