Carbon dioxide is added to the atmosphere:

a) as a by-product of solar energy

b) from the burning of fossil fuels

c) from hydroelectric power plants and dams

d) as a waste product from nuclear power plants

Which situation is an example of increasing potential energy? Question 4 options: A. a cat jumping from a tree B. pulling a wagon uphill B. a bicyclist stopping at a stop sign C./emptying a bucket of water

A railway wagon of mass 20t is moving along a level track at 10km/h when it collides and couples together with a second wagon of mass 25t moving in the same direction at 5km/h.

Boyle's Law states that as the pressure on a gas increases at constant temperature the volume of the gas A) Increases B) Decreases C) Stays the same D) There is no relationship between pressure and volume

Which force acts as an object to move it from rest or a constant straight line motion

A 2 kilogram cat is resting on top of a bookshelf that is 1 meters high. What is the cat's gravitational potential energy relative to the floor?

52. In an ideal gas the molecules possess a. Only potential b. Only kinetic energy c. Kinetic and potential energy both d. Only gravitational energy

To stretch a certain nonlinear spring by an amount x requires a force F given by F = 40 x - 6 x 2, where F is in Newtons and x is in meters.

A wave passes through an opening in a barrier. The amount of diffraction experienced by the wave depends on the size of the opening and the wave's (1) amplitude (3) velocity (2) wavelength (4) phase

Balanced - Forces acting on an object are balanced if the ... If forced on an object are balanced then the object cannot be ...

How are magnetic stripes near mid-ocean ridges evidence for sea-floor spreading?