Determining the speed of light through various materials.

Determine the speed of light in (through)sapphire; ice; glycerol.

The diffraction angle of a transmission.

What is the diffraction angle for the first-order image produced by a transmission grating with 5800 lines/cm illuminated by monochromatic light with a wave length of 4920 angstroms?

Calculating the induced emf.

The length of a conductor linking a magnetic field is 0.060m, and the flux density of the field is 0.040 N/Am The conductor is moving down through the flux with a velocity of 1.5 m/s. What is the induced emf?

Charge in a copper coin

A copper coin has a mass of 3 g. What is the total charge of all the electrons in it ? Given that the atomic number of Cu is Z = 29 and the atomic mass is 63.5 g/mole.

Calculating the average emf induced in a secondary current.

The mutual inductance of two coils is 0.750 H. How do I find the average emf induced in the secondary if the current in the primary reaches 6.00 A in 0.0300s?

Force between charges that are apart in air

Factor of k for air is 8.93x10(power)9 Nm(power)2/C(power)2 Calculate force between charges of +150.0(micro)C and -75.0(micro)C that are 0.600 m apart in air. * I am not able to use the proper symbols for (power), or (micro)

Calculate total charge in two parallel capacitors

Calculate total charge when two parallel capacitors, 2.00(micro)F and 6.00(micro), are connected to a 9.0V battery.

Current flow throught light bulb

Caluculate current flow through a small light bulb with a resistance of 3.5ohms connected to a dry cell of 1.5V

Wheatstone bridge method of determining unknown resistance

Using Wheatstone bridge method, find the unknown resistance if the bridge balances with the contact key at 73 and R(base 3) is 200 ohms. (R(base 3) being the known resistance.)

Resistance and resistivity of a wire connected in series.

Calculate the resistance and resistivity of a wire 6.24m long with a diameter of 2.00mm and a current of 0.500A when connected to a battery of five 1.5V dry cells in series.