A metal block, initially at 22oC with a mass of 150 g, is dropped from a height of 6 m into 250 g of water in a container. The water in the vessel is also initially at 22oC and we assume the container absorbs no heat. What would be the change in temperature of the water

When a resistor with resistance r is connected to a 1.50-v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) what power does the resistor consume if it is connected to a 12.6-v car battery? assume that r remains constant when the power consumption changes.

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

What would be the net charge of 1 gram gold piece after removal of 1% of its electrons