Find ur, the the energy dissipated in the resistor. express your answer in terms of u and other given quantities.

Name two different types of precipitation:

Which evidence best supports the theory that the universe began with a massive explosion? A - cosmic background radiation in space B - parallelism of planetary space C - radioactive dating of Earth's bedrock D - life cycle of stars

Consider two very long wires, one with a radius of 1mm, and one with a radius of 5mm. Both wires carry the same total amount of current (which is uniformly distributed over the cross-sectional area of each wire).

What unit of measurement would most likely be used to measure the length of a racetrack

Mention any 5 disadvantages of friction.

Bus A and Bus B leave school on a field trip when a stopwatch reads zero. Bus A travels at a constant 50 km/h, and Bus B travels at a constant 75 km/h. How far are the two buses from school when the stopwatch reads 1.5 h?. a ... Bus A is 76.

When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end of the electromagnetic spectrum. Why does this redshift occur?

Object A has a length of 3 cm, a width of 10 cm, and a height of 2 cm. Object B is dropped into a graduated cylinder. It displaces 60 mL of water. The volume of object A is:

Is the following sentence true or false? Some information about an object or process may be missing from a model.

If V is a velocity, l a length, and v a fluid property having dimensions of L2T-1, which of the following combinations are qualitatively dimensionless (show work for a through d) : (a) V l v (b) Vl/v (c) V2v (d) V / (l v)