True or false

Destructive interference takes place when the crest of one wave balances out or cancels out the trough of an interfering wave.

What occurs along a convergent plate? A. hot spots and ridges B. volcanoes and ridges C. earthquakes and volcanoes D. Earthquakes and hot spots

The power of a heart which beats 72 times in a minute is 1.2kW. Calculate the work done by heart for each beat.

Which of the following statements are true as a block of ice melts? Check all that apply. a. The temperature of the ice/water system remains constant. b. Heat energy leaves the ice/water system. c. Heat energy enters the ice/water system. d.

Which of the following is the visible part of the spectrum of light?

A ball is released from the top of a hill. How fast is the ball going when it reaches the base of the hill? Approximate g as 10 m/s2 and round the answer to the nearest tenth.

What should a scientist do to use scientific methods for determining the relative age of Earth's rocks? A be biased in opinion B disregard views of others C use creative ideas D prove that methods are non-testable

If a sample of gas is heated at a constant pressure what will happen to the volume of the gas

1. What is the speed of sound in air that has a temperature of 90.0 °C?

What effect does a doubling of the mass have upon the acceleration of the object? Be quantitative.

What type of intermolecular forces would you expect to find in a pure liquid sample of carbon tetrachloride?