Physics Answers

1. Two point charges q1 = 5.25 x 10-9 C and q2 = -8.75 x 10-9 C are 1.00 m apart in air. (a) What

force exist between them? Is this an attractive or a repulsive force? (b) The charges are allowed

to touch and separate again by 1.00 m. What force exists between them now? Is this an

attractive or a repulsive force?

1. Two point charges q1 = 5.25 x 10-9 C and q2 = -8.75 x 10-9 C are 1.00 m apart in air. (a) What

force exist between them? Is this an attractive or a repulsive force? (b) The charges are allowed

to touch and separate again by 1.00 m. What force exists between them now? Is this an

attractive or a repulsive force?

A 225m long, 300mmϕ concrete pipe and a 400m long, 400mmϕ concrete pipe are connected in series. What is the diameter of a 625m long equivalent pipe?

In an ac circuit it is containing resistance of 15 ohm and inductance of 0.3H in series with 50 Hz ac supply voltage.If the voltage across resistance and inductance is 10 volt and 15 volt respectively.Then determine the total input voltage of the circuit

What is the power available in a weir jet having a cross-sectional area of 0.005m^2 with a velocity of 25.80m/sec?

What is the theoretical horsepower required to pump water at 6.30liters/second from a large reservoir to the surface of another reservoir 120m higher?

an aluminum tube with a 15 inch diameter with an average speed of 150 ft/min and specific volume of

A 30 kg block is pushed up an inclined plane at an angle of 25° with a constant

velocity of 4 m/s by a force of 280 N parallel to the plane. What is the coefficient of

kinetic friction between the block and the plane?

 Look at the data: as the net force increased, what happened to the acceleration? Did it increase, decrease or stay constant? Why?