In which of the following situation is work being done?

A car is pushed but does not budge.

A weightlifter holds a barbell over his head.

A wagon is pulled at an angle of 30 degrees to the horizontal.

A swimmer treads water for 15 minutes.

State and explain Newton's Law of cooling.

The Fayette Power Station * is a coal-fired power plant located near La Grange, Texas and provides electric power for both the Houston and Austin metro areas.

To determine a waves' frequency, you must know the distance it travels. number of oscillations in a given period of time. distance between the crest and trough. height of the wave.

who did more work a man walking 20km up a hill in 1 hour or a man bycicling 20km up the same hill in 30 minutes

An inelastic collision of two objects is characterized by the following.

What are geothermal heat pumps used for? a. Cooling and heating buildings b. Cooling buildings c. Heating buildings d. Heating water for using in homes

Electromagnetic waves have linear momentum as well as energy. What does this imply about electromagnetic waves?

A humanoid skeleton is found buried in the ashes of a volcano that erupted between 10,000 and 12,000 years ago. when scientists use absolute dating techniques to obtain an age of the fossil, approximately how much carbon-14 isotope will remain?

Two objects exert a gravitational force of 3 N on one another when they are 10 m apart. What would that force be if the distance between the two objects were reduced to 5 m? A. 1.5 N B. 6 N C. 12 N D. 24 N

5 potential causes of infertility