Why can radio telescopes be used 24 hours a day?

A 1000-kg car is driving toward the north along a straight horizontal road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest uniformly in a distance of 200 m.

A force of 5 N accelerates an object. The object's mass is 50 g. What is the acceleration of the object? (Formula: F=ma)

A 20V battery is connected to a complex circuit with three branches. The first branch has a 10Ω light bulb and a switch in series. The second branch has a 10Ω and 20Ω light bulb in series. The third branch has only the battery. Solve the circuit.

A magnetic field is created by a charged particle that is

It is known that the 10 kg pipe will roll up the ramp and not slide on the ramp when P becomes sufficiently large. Using the rolling assumption, find the minimum P required to cause impending motion of the 10 kg pipe up the ramp.

Which of the following statements about igneous rocks is correct?

A rock is thrown off of a 100 foot cliff with an upward velocity of 45 m/s. As a result its height after t seconds is given by the formula?

How much power does a hair dryer require to transform 198000

An electric oven has a resistance of 201 ohms and a voltage of 220 V. How much current does it draw? a) 11 A b) 1.1 A c) 1,100 A d) 110 A

How are magnetic fields and electric fields similar