How does hydroelectric energy work

What are two ways that some solutes form ions in solution?

You are an evolutionary biologist studying a population of bats in the rain forest in Brazil. Most of the population possesses moderate length wings, although some individuals have long wings and some individuals have short wings.

How will you describe the magnetic field around a current-carrying coil? a. the magnetic field is weakest near and around the coilb) the magnetic field vary directly with the distance from the coilc) the magnetic field is strongest inside the

Gerald works on a futuristic space station servicing interstellar space ships. He observes a ship traveling directly away from the space station at a speed of 0.6c. The ship launches a shuttle towards the space station with a speed of 0.

A rocket weighs 9800N (opposing force) what is it mass? What netforce moves the rocket? What applied force gives it a vertical acceleration of 4m/sec

Remembering the Battle of Bunker Hill what did general Harry and his troops do

Is thin humans more denser than fats?

A small bubble rises from the bottom of a lake, where the temperature and pressure are 4°C and 3.0 atm, to the water's surface, where the temperature is 25°C and the pressure is 0.95 atm.

The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have passed? A. 25 g B. 100 g C. 75 g D. 50 g

Suppose a large truck on a hydraulic lift exerts 7,000 N of force on a piston with an area of 0.4 m2. The piston can only support 16,000 Pa of pressure. How much pressure is exerted by the truck on the piston?