If the station is 40 km away, how long does it take for the radio waves to reach you from the station? Answer in units of seconds.

What form of energy does a compressed spring have? a. heat energy b. kinetic energy c. chemical energy d. potential energy

A down jacketkeeps your body warm mostly by reducing hich form of heat transfer? A. coduction. b. convention. c. thermal radiation

Electric current flows when there is a- a. charge pump b. closed circuit c. conductor d. all of these

What are four things that are cycled in the environment?

A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.380 ss to pass from the top to the bottom of this window, which is 2.00 mm high.

An automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the nafural frequency of the automobile in the vertical direction by assuming damping to be negligible.

Samantha is checking the weather for her upcoming trip to Mexico City. The weather forecast predicts a high-pressure system for the four days of her trip. What kinds of conditions can she expect?

Compare the life cycles of flower less seed plant and flowering seed plants

A clock moves past you at a speed of 0.9 c. How much time passes for you for each second that elapses on the moving clock? 0.436 s 1.15 s 2.29 s infinity

A 0.18-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 19 N.