What happens when a wave reflects?

a. They are absorbed by the object they hit.

b. They travel through the object they hit.

c. They bend when they hit the medium.

d. They bounce off the object they hit.

Agricultural waste used as a fuel is an example of

Identify the element that has nine protons

If the number of particles of a gas is increased, the gas pressure will do what?

Which choice is a potential drawback of nanotechnology? check all that apply ideas might not work. research is expensive. there is a high demand for new technology. building and applying new technology is time consuming.

Bowl of water A bowl full of water is sitting out in a pouring rainstorm. Its surface area is 500 cm2. The rain is coming straight down at 5 m/s at a rate of 10-3g/cm2 s.

When performing a Phase 4 workout, how many repetitions per resistance training exercise should be performed?

Technician A says a that a voltmeter can be used to monitor the output signal of an optical sensor. Technician B says that optical sensors should be tested with an oscilloscope because of the sensor's speed. Which technician is correct? A.

Similar poles of bar magnets attract each other. True False

When an object is charged, what type of subatomic particle is transferred between objects?

The windshield of a car has a total length of arm and blade of 9 inches, and rotates back and forth through an angle of 93degrees. What is the area of the portion of the windshield cleaned by the 7 -in wiper blade?