Becky has a shower and uses 20,000g of water with a specific heat capacity of 4200J/KG. When the water is supplied with 336,000J of energy, it heats up to 50^c. What is the startig temperature of the water?

Three 100 nCcharged objects are equally spaced on a straight line. The separation of each object from its neighbor is 0.3 m. Find the force exerted on the center object if the rightmost charge is negative and the other two are positive.

What do I do with vectors in physics?

In a ballistics test, a 28-g bullet pierces a sand bag that is 30cm thick. If the initial bullet velocity was 55 m/s and it emerged from the sandbag moving at 18m/s, what was the magnitude of the friction force (assuming it to be constant and the

Which element combines chemically with sodium to from ordinary table salt

What is the difference between the law of conservation of energy and conserving energy

According to the map, which of the following cities had both a military and a POW camp nearby?

What does uniformitarianism tell us about processes at work on Earth's surface today?

A bad case of the tonsillitis can sometimes affect a persons breathing how possible

How gravity affect time? With reference to einstein special theory of relativity

An experiment was performed on a 2-kg block. Forces of 5, 10 and 15 Newtons respectively were applied to the block for 5 seconds. Describe the difference in final speed between the three trials.