Which is an example of potential energy?

a. a swimmer kicking their legs

b. a car driving on the road

c. an arrow flying at a target

d. a yo-yo in someone's hand

A student throws a 0.160-kg ball straight upwards to a height of 4.70 m. How much work did the student do?

Our local public radio station (KJZZ) broadcasts at a frequency of 91.5 MHz. (a) What is the wavelength of the radio waves emitted by the KJZZ broadcast antenna? Give your answer in meters.

A system absorbs 12 j of heat from the surroundings; meanwhile, 28 j of work is done by the system. what is the change of the internal energy δeth of the system?'

Which organism uses photosynthesis

A crate is lifted vertically 1.5 m and then heldat rest. The crate has weight 100 N (i. e., it issupported by an upward force of 100 N). How much work was done in lifting thecrate from the ground to its final position?1. More than 150 J2. 150 J3.

Hat is a scientific theory? Make up your own scientific theory.

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east

What was the total weight (lbf) of chocolate in the vat? the specific gravity of chocolate is approximately 1.24?

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

What is the explanation for feather beds being warm