Physics Answers

What happens to the air temperature in valley when cold air blowing from mountain top descending to the valley?

In a transistor, beta=45, the voltage across 5k? resistance which is connected in the collector circuit is 5volts. Find the base current.

A ship, leaving its port sails due north for 45 kilometers and then 60 kilometers in a direction

of 60 degrees east of north. Determine the location of the ship relative to its port

A mass is hung at the end of the spring length of 14 cm. The mass was pull down

and extend to the quarter of the original length of the springs and released so that

it oscillates vertically. If the mass took 0.125 s to go up and down from

equilibrium point:

a) The acceleration when the displacement is at maximum.

describe the life condition on the planet mars

what is definition of modern physics?

why is the sky blue?

describe in physical phenomena

A cube of mass 10 kg is at rest on a horizontal surface when it is subjected to a horizontal force P that varies with time t as P = 20t. If the static and kinetic coefficients of friction are both 0.4, calculate the velocity of the cube after 5 s.

A 10Mg truck rolling at a constant speed of 30 kph along a horizontal rail comes to an incline of slope sin 0.1. Calculate how far it will coil up the slope before coming to a halt, (a) ignoring all resistive forces, and (b) assuming the rolling vesistance is 5% of the normal reaction of the truck

A car starts to move at rest. It travels first 10 seconds with a constant acceleration of 2ms^-2 and the next one minute with the obtained constant velocity. During the final 30 seconds, it decelerates with a constant rate and comes to rest. Find the average velocity of the car.