What would the temperature of 50g of 20 degree Celsius water mixed with 80g of 40 degree Celsius water?

A helium atom consists of two protons, two electrons, and two neutrons. In the helium atom, the strong force is a fundamental interaction between the (1) electrons, only (2) electrons and protons (3) neutrons and electrons (4) neutrons and protons

Human population growth rates are increasing. Assuming that the biocapacity of earth does not change, what will need to happen to the average person's ecological footprint to best sustain our population A. it will need to increase B.

If you designed a rollercoaster, how might you design it? Would you have friction?

What happens to the direction of a light wave when it passes from a less dense medium such as air into a more dense medium such as glass

Describe how atmospheric pressure changes altitude increases

How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N? Express your answer in joules and kilocalories.

Arrange the objects in order from least to greatest potential energy. Assume that gravity is constant. (Use PE = m * g * h.

No physical processes have ever been demonstrated which provide a mechanism for the universe to assemble itself. True False

A very famous motorcyclist plans to jump across a canyon 3.5 kilometers wide. he plans to use a 30 degree ramp and leaves it at 196 m/s. Will he make it? show all calculations to prove your answer

Which composition of water moves within a deep-water current?