Physics, 10.10.2019 01:30 delaneynagle3368

Which statement best describes the work and energy in these examples?

example 1: running a car requires gas.
example 2: humans require food to live.

a) the gas and food are examples of energy.
b) the gas and food are examples of work.
c) the gas and humans are examples of work.
d) the food and car are examples of energy.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 08:00, Lovelybunny321

What is a carrier wave and how does it affect what you hear on the radio

Answers: 1

continue

Physics, 22.06.2019 10:40, rainbowboi

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Answers: 1

continue

Physics, 22.06.2019 11:50, azertyqwerty123

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Answers: 2

continue

Physics, 22.06.2019 17:00, miya214

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.

Answers: 1

continue

You know the right answer?

Which statement best describes the work and energy in these examples?

example 1: runni...