You drive a car for 2.2 h at 45 km/h, then for another 2.2 h at 60 km/h. what is your average velocity?

Two birds collide in midair. Before the collision their combined momentum was 88kg•m/sto the west. What is their combined momentum after the collision

Nearsightedness can be corrected by using eyeglass lenses that are A. concave in shape and cause light rays entering the eyes to converge. B. convex in shape and cause light rays entering the eyes to converge. C.

Angle is used to adjust the speed of your marble. In terms of conservation of energy what other benefit is there to adjusting an angle?

In a game of tug-of-war, a rope is pulled by a force of 182 N to the right and by a force of 110 N to the left. What is the magnitude and direction of the net horizontal force on the rope?

A scuba diver sees light reflected from the water's surface. show answer No Attempt If the index of refraction for air is 1.00 and the index of refraction for water is 1.

Form of energy that exhibits wavelength behavior as it travels through space. Example: Mircrowave rays, U. V. rays.

Which of the following is the primary medium for beach erosion? ice gravity wind water

A 75-kg snowboarder has an initial velocity of 5.0 m/s at the top of a 28 ∘ incline. after sliding down the 110-m long incline (on which the coefficient of kinetic friction is μk = 0.18), the snowboarder has attained a velocity v.

How chemical displacement reactions differ from a chemical decomposition reaction? "

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.8 m/s2 for 4.4 seconds. It then continues at a constant speed for 13.