What is the specific heat of a substance if 130 kj of heat is needed to raise 6.6 kg of the substance from 18.0 ∘c to 37.2 ∘c?

why is a person who lives in the city able to sleep through the sounds of traffic but awaken to the soft sound of a bird singing?

What information do you need to describe an objects location

The law of universal gravitation states that any two objects in the universe, without exception, A) attract each other. B) repel each other. C) combine to provide a balanced force. D) create friction.

List four ways of separate a mixture

A 115-turn circular coil of radius 2.71 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. During 0.133 s the magnetic field strength increases from 50.1 mT to 90.5 mT.

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?