About 40 j is required to push a crate 4 m across a floor. if the push is in the same direction as the motion of the crate, the force on the crate is about

What is the peak emf generated (in V) by rotating a 1000 turn, 42.0 cm diameter coil in the Earth's 5.

You are driving on a slippery road, in a car that does not have Anti-lock Brakes (ABS). If your car starts to skid sideways when you step on the brake, you should a. Continue pressing firmly on the brake, and steer in the direction you want to go. b.

To what temperature would you have to heat a brass rod for it to be 1.8 % longer than it is at 30 ∘c?

You shine light with a wavelength of 400 nm at two small slits (I and II) and observe an interference pattern on a screen.

The nucleus of any atom requires a strong force to hold it together. This strong force is required because A) the nucleus of any atom is so small. B) protons and neutrons repel each other. C) positive protons in the nucleus repel each other.

17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air (3.0*106 V/m) if the plates are separated by 2.00 mm and 5.

What property of sound enables us to distinguish one sound source from another?

The table below shows the right ascensions of two stars at a location. Star 1 - 4 right ascension (in Hour) Star 2 - 3 right ascension (in Hour) Which of these statements is correct about the stars?

H-2 + H-3 → He-4 + Consider the nuclear reaction that takes place in the sun. Two nuclides of hydrogen fuse to form helium. Is helium the only product of this reaction? If no, identify any additional products. A) Yes, He-4 is the only product. B) No.

Hat is a scientific theory? Make up your own scientific theory.