Which of the four fundamental forces is mainly responsible for contact forces? A. gravity B. weak nuclear force C. electromagnetic force D. strong nuclear force

A current of 19.5 mA is maintained in a single circular loop with a circumference of 2.30 m. A magnetic field of 0.710 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?

A suspension bridge oscillates with an effective force constant of 2.4 * 1088 n/m. (a) how much energy is needed to make it oscillate with an amplitude of 0.10 m? (b) if s

The electromagnetic spectrum is set up from the lowest frequency (shortest wavelength) to the highest frequency (longest wavelength) A: True B: False

An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as (1) cP (3) mP (2) cT (4) mT

A body is moving vertically upwards. It's velocity changes at a constant rate from 50m/s to 20m/s in 3 sec. What is it's acceleration?

Which actions are evidence that a chemical reaction has occurred? Check all that apply. A: a change in color B: the formation of a precipitate C: a clear liquid becoming cloudy D: a change in shape E: the formation of bubbles F: the formation of

Which sphere forms Earth's outermost layer? Atmosphere Biosphere Cryosphere Hydrosphere

an 100kg object traveling at 50m/s collides (perfectly inelastic) with a 50kg object initially at rest. what is the sum of the momentum of both objects prior to the collision?

A train moves at constant velocity of 50km/h. how far will it move in 0.5h?

Which process best describes part of a scientific investigation? O designing a solution O evaluating the conclusion O evaluating the solution O identifying the conclusion