A resistor uses 100 w of power when connected to 120 v emf. What is the current through the same resistor when connected to a 220 v emf?

What factors does weight depend on?

Ice sheet movement rates have varied from about 50 to 320 meters per year for the margins of the ice sheet advancing from the hudson bay region during the ice age.

The energy transformations in a car's engine are an example of multiple transformations. True or False?

A circular loop of wire with radius r=0.0250 m and resistance r=0.390 ohms is in a region of spatially uniform magnetic field. the magnetic field is directed into the plane. at t=0, b=0. the magnetic field then begins increasing, with b (t) = (0.

A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.3 kg, and its initial speed is 4.0 m/s.

What is one exsample of a closed economy

A transfer by work from the system, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s. The specific internal energy, u, decreases by 5 kJ/kg and the acceleration of gravity is constant at 9.7 m/s².

What is the best prediction for the weather on the day after high pressure system passes

Is it possible to have motion in the absence of a net force?

There are 2 charged particles, A and B. You know that particle A is positively charged. When you place particle B next to particle A, then particle B starts moving away from particle A. What does this mean for particle B?