What causes the ocean waves that surfers use for their sport? a. density differences in water b. salinity differences in water c. sunlight heating water d. wind blowing across water

The small piston of a hydraulic lift, has an area of 0.01m2. If a force of 250N is applied to the small piston if it has an area of 0.05m2. Critical Thinking

Which of the following is studied at the International Space Station?

A skateboarder rolls horizontally off the top of a staircase at a speed of 18 ms-1 and at the bottom of the stairs which has a horizontal length of 9 m as shown. Calculate the skater's vertical displacement during the jump?

A prankster drops a water balloon from the top of a building on an unsuspecting person on the sidewalk below. If the balloon is traveling at 30.3 m/s when it strikes a person's head (1.

What science tool can you use to pick up tiny objects

Acceleration is rate of change of?

1. Find the kinetic energy of a. 023 kg bullet moving at 420 m/s.

What evidence can you cite for the particle nature of light? 1. Refraction phenomenon of light 2. The many colors of light 3. Diffraction phenomenon of light

The orientation of which of the following does not influence the phases of the moon? a. Earth c. Sun b. the moon d. Stars

What force is responsible for the slowing of the ball?