Imagine you want to get 1 kcal of energy from a cow. How much energy would the cow need to get from plants? Why?

The amount of energy required to break a nucleus into individual protons and neutrons is called

What is one of the most noticeable effects of the moon on earth?

List and describe two ways currents affect life on earth

Two objects collide and bounce apart. Assuming no outside forces act on the system, which best describes the total momentum after the collision? It is always greater than it was before the collision.

A horizontal force, F1 = 65 N, and a force, F2 = 12.4 N acting at an angle of θ to the horizontal, are applied to a block of mass m = 3.1 kg. The coefficient of kinetic friction between the block and the surface is μk = 0.2.

What does infrastructure refer to? process by which a nation improves the economic, political, and social well-being of its people level of farming in which a person raises only enough food to feed his or her family services and facilities necessary

Sophee left her house on her bike and traveled 3 kilometers north, 5 kilometers east, 3 meters south, then 5 meters west arriving home in time for dinner. What is her distance and displacement?

What would happen to the average kinetic energy of the molecules of a gas sample if the. temperature of the sample increased from 20°c to 40°c?

A _ spreads light into its own individual colors.

What is the direction of the force when an object moved in a circle