Which is are examples of levers: A) shovel B) wheelchair C) seesaw D) basballbat being swung ... 2 or more

If the skater coasts only around 65 degrees of the circle, find the magnitude of his displacement vector.

A box is sitting stationary on a ramp that is 42° to the horizontal. The box has a gravitational force of 112.1 N. What is the minimum amount of force that can be applied to the box to get the box to move? 70 N 75 N 80 N 83 N

A car's headlights dissipate 40 W on low beam and 50 W on high beam. Is there more or less resistance in the high-beam filament?

Which of these is a balanced chemical equation? CO (g) + O2 (g) - - > CO2 (g) CO (g) + 2O2 (g) - - >2CO2 (g) 2CO (g) + O2 (g) - - > 2CO2 (g) 2CO (g) + 2O2 (g) - - - > 2CO2 (g)

A spherical mirror and a thin spherical lens have each a focal length of + 10cm, the mirror and the lens are likely to be

Consider a "crystal" consisting of two nuclei and two electrons. (a) Taking into account all the pairs of interactions, find the potential energy 1 of the system as a function of d.

jason hits a baseball off a tee toward right field. the ball has a horizontal velocity of 10 m/s and lands 5 meters from the tee. what is the height of the tee? show your work, including formula (s) and units.

What is the average amount of energy of motion in the particles of a substance

A race car is traveling at 76 m/s when it slows down at 9 m/s^2 for 4 seconds. What is his new velocity

Humpty Dumpty (12 kg) sat on a wall (2 m high). What was his potential energy, before his great fall? A. 235.2 J B. 235.2 N C. 24 J D. 246.1 W