Physics, 26.02.2020 00:30 miner12924owhu4d

To entertain his dog, John throws a tennis ball straight up in the air. Unfortunately, just as it reaches the top of its flight, it is intercepted by a large bird which carries it away which of the following best describes the ball's flight before the bird snatches it? (Ignore air resistance)

a. Gravity does negative work, the gravitational potential energy increases, and the kinetic energy increases.
b. Gravity does positive work, the gravitational potential energy increases, and the kinetic energy increases.
c. Gravity does negative work, the gravitational potential energy increases, and the kinetic energy decreases.
d. Gravity does positive work, the gravitational potential energy increases, and the kinetic energy decreases.
e. Gravity does negative work, the gravitational potential energy decreases, and the kinetic energy decreases.
f. Gravity does positive work, the gravitational potential energy decreases, and the kinetic energy decreases.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 02:00

What is the mass of the same rock on the earth

Answers: 2

Answer

Physics, 22.06.2019 05:30

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis

Answers: 3

Answer

Physics, 22.06.2019 20:30

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.

Answers: 2

Answer

Physics, 22.06.2019 21:10

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.

Answers: 1

Answer

You know the right answer?

To entertain his dog, John throws a tennis ball straight up in the air. Unfortunately, just as it re...

Questions