What is the wavelength of an earthquake wave if it has a speed of 11 km/s and a frequency of 7 Hz?

When polarizing an object, what happens to the charges in the object? A. They swirl about like bees in a hive. B. They separate, with positive charges on one side and negative charges on the other. C.

A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma)

The minute hand of a large clock is 0.50 m long. (A) Calculate its linear speed at its tip in meters per second. (0.000873 m/s) (B) Calculate the centripetal acceleration of the tip of the hand. (1.52 x 10-6 m/s2)

Why do satellites in orbit fall to the ground? why dont they fly into space?

What metal is most commonly used as a conductor?

A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV.

A hammer head of mass 600g, produces force of 360N when it strikes the head of a nail Explain how it's possible for the hammer to drive the nail into a piece of wood, yet a weight of360N resting on the head of Nail would not?

A ball is hit straight up with an initial speed of 28 meters per second. What is the speed of the ball 2.2 seconds after it is hit? [Neglect friction.]

What is the approximate pressure of air at sea level? 0 kPa 101 kPa 10 kPa 1000 kPa

The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat travels through atmosphere to the top of the seat Step 3: Heat from the top of the seat travels through the seat to the