A tennis ball travels the length of the court 24m in 0.5 s find its average speed

The emission of electrons from a metal caused by light striking metal A) newtons 1st law of motion B) Doppler effect C) double slit experiment D) photoelectric effect

In circular orbit, the gravitational force on a satellite is A. constant in magnitude. B. at right angles to satellite motion. C. Both of these. D. Neither of these

Wind can cause ocean currents to flow in a particular pattern A. Coriolis effect B. salinity C. Temperature D. density

Which of the following is not true about the open ocean? Scientists have identified all the species in the ocean. There are billions of plankton that provide over half of the earth's oxygen.

What is the magnitude of a volcanic eruption in krakatoa, indonesia august 27, 1883?

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?