Compare exothermic reactions and endothermic reactions. Give at least one similarity and one difference.

How and why does air pressure change with altitude in the atmosphere?

Why is momentum considered a vector quantity?

What is the correct definition of electricity?

Which sound would be loudest? O A. a wave with an amplitude of 1.0 OB. a wave with an amplitude of 0.1 OC. a wave with an amplitude of 0.5 OD. a wave with an amplitude of O

To test the performance of its tires, a car travels along a perfectly flat (no banking) cir- cular track of radius 564 m. The car increases its speed at uniform rate of u du = 3.62 m/s? dt until the tires start to skid.

The linear, step wise representation of the process of science from the traditional scientific method, while simplified, does capture the core logic of science: testing ideas with evidence. 1.) True 2.) False

Most arson fires are produced through what? Accelerants Dynamite Chemical residues Steroids

A block with mass m1 = 9.4 kg is on an incline with an angle θ = 25° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.22 and μs = 0.242.

When an electric current flows through a wire a magnetic field is created. To increase the power of the magnetic field you would A.

When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator portion of the instant cold pack releasing the solid urea into the surrounding water.