A boat is rowed at 8 km/hr directly across a river that flows at 6 km/hr. What is the resultant speed?

A 0.50g leaf falls from a branch 4.0m off the ground to a bird's nest 2.5m off the ground. How much gravitational potential energy did the leaf loose?

Which of the following will exert a force on a magnet? another magnet a nearby piece of glass a nearby piece of plastic a nearby electric current

Suppose you balance a 2.4 kg ball on the tip of your finger, which has an area of 1.4 cm squared? Find the pressure on your finger.

Compare and contrast tornadoes and hurricanes

The atmosphere of the moon is made up of what gases? Hydrogen and helium Oxygen and nitrogen Carbon dioxide and oxygen The moon has no atmosphere

When a fluid is heated, what changes occur? It becomes less dense and begins to rise. It becomes more dense and begins to rise. It becomes less dense and begins to sink. It becomes more dense and begins to sink.

Which of the following accurately describes properties of valence? A. The greater the number of electrons an atom has to borrow or to lend, the greater the activity of the atom. B.

A rectangular tank 7 m wide is layered with 8 m of oil (rho = 880 kg/m3), 6 m of water, and 4 m of mercury (rho = 13,600 kg/m3). The tank is surrounded by air at atmospheric pressure and the top is open.

Brainiest what is Igneous rock made up of

Which of the following is a good emitter of radiant energy? clear glass window, a mirror, air, an asphalt road, snow