An electric heater of power 1000W has a resistance of 10 ohm. calculate the magnitude of current

The ratio of the inductive reactance to the capacitivereactance is observed to be 5.36 in a series RCL circuit. Theresonant frequency of the circuit is 225 Hz. What is the frequency (nonresonant) of the generator that is connected to thecircuit?

The ratio of output power yo input power, in percent, is called

With what force will a car hit a tree if the car has a mass of 3000 kg and it is accelerating at a rate of 2 m/s2? 6000N 1500 N 1000 N 300 N

How did mendeleev use hydrids in developing his table?

One common application of conservation of energy in mechanics is to determine the speed of an object. Although the simulation doesn't give the skater's speed, you can calculate it because the skater's kinetic energy is known at any location on the

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2