The model shows how solar-powered electric cars indirectly use energy from the Sun. Describe the energy transformations that you see.

When the track is covered with the cloth, will the cart's braking distance become longer or shorter?

The polar ice caps of mars is believed to consist mostly of

A car travels on the entrance ramp to a freeway as it accelerates from 30 mph to the freeway speed of 70 mph for 4.0 s. Suppose that the car moves with the constant acceleration.

A star is observed to have a temperature of 3000 K and then luminosity of 105. What is the color of the star?

What volume is occupied by 2.35 moles of he at 25 degree c and a pressure of 0.980 atm?

you often hear people particularly TV announcers talk about "high rate of speed" what do you think they mean according to the specifics of physics definitions what are they really saying

What is the value of x in the equation Ix - 3y = 30, when y = 15?

32. How much work is done pushing an 80 N box 2 m across ue surtout What work is done? a. 40 J c. 160 J b. 20 J d. 240 J

Which is a resource that the National Park Service manages? A. memorials B. wildlife refuges C. ecosystems D. endangered species

Write two examples (mathematical expression) of physical laws that change inversely with the square of the distance.