Physics in motion unit 6a the nature of waves

A 30.0 g arrow is shot by William Tell though an 8.00 cm thinck apple sitting on top of his son's head. If the arrow enters the apple at 30.0 m/s and emerges at 25.0 m/s in the same direction, with what force has the apple resisted the arrow? ... ?

The formation of a cell plate is a characteristic of

8. A receptacle, plug, or any other electrical device whose design limits the ability of an electrician to come in contact with any of its electrical connections is identified as safe. A. touch B. removal C. recessed n feel

A 2.50 gram rectangular object has measurements of 22.0 mm, 13.5 mm, and 12.5 mm. what is the objectâs density in units of g/ml? use significant figures. do not enter âg/mlâ as part of your answer. do not use scientific notation.

Two capacitors, one that has a capacitance of 6 µF and one that has a capacitance of18 µF are first discharged and thenare connected in series. The series combination is then connectedacross the terminals of a 12-V battery.

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of:

Does air resistence decrease with speed

In one area, the lowest angle of elevation of the sun in winter is 23 ° 18 '. Find the minimum distance, x, that a plant needing full sun can be placed from a fence 4.63 ft high.

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?