4 Use the following diagram to answer the next questions Three objects are arranged in a line as shown, Object B has a mass of 23 vg and charges and
C; and object C has a mass or 8 kg and here 18 as the distance between obyease and
C is 1.5 meters,
Ос
If the gravitational force from object A on object B is 1.2x10° N, in which direction is the net
gravitational force on object B?
A to the right
B the net gravitational force on object B is zero
с to the left
in mill not induce a potential difference in a coil of wire?

Where do magnetic lines of force enter earth?

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?

The average atmospheric pressure on earth is approximated as a function of altitude by the relation patm = 101.325 (1 − 0.02256z)5.256, where patm is the atmospheric pressure in kpa, and z is the altitude in km with z = 0 at sea level. determine the approximate atmospheric pressures at atlanta (z = 306 m), denver (z = 1610 m), mexico city (z = 2309 m), and the top of mount everest (z = 8848 m).