The electric potential (voltage) at a specific location is equal to the potential energy per unit charge a charged object would have if it were at that location. if the zero point of the voltage is at infinity, the numerical value of the voltage is equal to the numerical value of work done to bring in a unit charge from infinity to that location. select values and grid in the menu, and drag one positive charge to the middle of the screen, right on top of two intersecting bold grid lines. using the voltage meter, you should find that 1 m away from the charge, the voltage is 9 v. what is the voltage 2 m away from the charge?

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

What are the similarities & differences between a thermistor and a light dependent resistor in physics?