If we see a supernova of a star that is 25 light years away from us, we know it exploded 25 years ago.

True

False

What is the current in a 160V circuit if the resistance is 2Ω?

A fugitive tries to hop on a freight train traveling at a constant speed of 5.0 m/s. Just as an empty box car passes him, the fugitive starts from rest and accelerates at a = 3.8 m/s2 to his maximum speed of 8.0 m/s.

What effects do marine organisms have on ocean chemistry?

Solar energy is converted into what energy

Is a charge 5.8 * 10^-18 C possible?

the color of the sun appears to be orange or yellow when looking from the earth but it really is red. true or false

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? 1 - positive 2 - negative 3 - zore

Which object has the most gravitational potential energy? A. an 8 kg book at a height of 3m B. an 5 kg book at a height of 3 m C. A 5 kg book at a height of 2 m D. a book at a height of 2 m

A moving object has a kinetic energy of 150 j and a momentum with a magnitude of 30.0 kg•m/s. determine the mass and speed of the object

How does changing depth affect water pressure