A baseball player throws a baseball. The ball traveled 35 yards before it landed on the ground. The ball stayed in the air for 3.8 seconds. What is the average speed of the ball?

If the speed of air flow past the lower wing of and airplane is 350 ft/s, what speed of flow over the upper wing will produce a lift of 20 lb/ft^2?

If you kick a ball, you apply an impulse. The impulse is equal to a. The momentum of the ball. b. The change in momentum of the ball. c. The maximum force between your foot and the ball. d. The momentum of your foot.

Which type of bond will form in a molecule of iodine

a 357-magnum bullet has kinetic energy of 540 ft lb at 50 yards from the pistol. If it strikes and comes to a rest inside a 1.

A rocket is launched from ground level with an initial vertical velocity (v0) of 176 ft/s. After how many seconds will the rocket hit the ground? (Hint: h (t) = - 16t2 + v0t + h0). explain.

Solve the following automotive-services problem. Remember I = E/R, where (I = amps) against resistance (R = ohms) in the electric field (E = volts.). Resistance = 0.2 ohm Current = 30 amps Voltage = 6 (T/F)

1: Explain how you can use Boyle's Law to determine the new volume of gas when its pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 L. Assume the temperature and number of particles are constant.

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If a skater who is spinning pulls her arms in so as to reduce her rotational inertia by half, by how much will her angular momentum change? by how much will her rate of spin change?

What an object is made up of and the color of light that strikes it determine the A) apparent color of object B) transparency of the object C) opacity of the object D) translucence of the object