4. A sodium ion has a +1 relative atomic charge which indicates it has one more proton than electron. This ion is placed in a 4.00 NC electric field. Remember, the charge of one relative atomic charge is 1.60 x 10-19

a. Calculate the force applied to a single sodium ion in this electric field.

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?