The electromagnetic spectrum

stephanie, who has a mass of 75 kg is driving and suddenly slams on her brakes to avoid hitting a student crossing blanco road. she is wearing her seatbelt, which brings her body to a stop at 0.5 seconds.

If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 50 N·m, what minimum force must be exerted by the mechanic at the end of a 22 cm-long wrench to loosen the nut? Answer in units of N.

A person who has dissociative identity disorder: O A. cannot remember who he or she is. O B. has panic attacks when confronted. C. has two or more distinct personalities OD hears voices

A thin layer of oil with index of refraction no = 1.47 is floating above the water. The index of refraction of water is nw = 1.3. The index of refraction of air is na = 1. A light with wavelength λ = 775 nm goes in from the air to oil and water.

a car slows down from 22 m/s to 3 m/s at a constant rate of 3.5 m/s squared. how many seconds are required before the car is traveling at 3 m/s?

Assume that a friend hands you a heavy book to hold as he turns the combination lock on his locker. Which of you does more work?

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 422 Hz, while the piece open only at one end has a fundamental frequency of 666 Hz.

Table tennis the path of a table-tennis ball after being hit and hitting the surface of the table can be modeled by the function h=-4.9t (t-0.42) where h is the height in meters above the table and t is the time in seconds.

A coat rack weighs 65.0 lbs when it is filled with winter coats and 40.0 lbs when it is empty. The base of the coat rack has an area of 452.4 in2.

An initially stationary object experiences an acceleration of 6 m/s2 for a time of 15 s. How far will it travel during that time?