Which of the following terms best describes energy from the Sun?

A.) microwaves

B.) visible light

C.) infrared radiation

D.) electromagnetic radiation

The energy transformations in a car's engine are an example of multiple transformations. True or False?

At take off, a plane flies 100 km north before turning to fly 200 km east. How far is its destination from where the plane took off? Question 3 options: 300 km 224 km 200 km 173 km

Electrons in excited hydrogen atoms are in the n = 3 energy level. How many different photon frequencies could be emitted as the atoms return to the ground state? (1) 1 (3) 3 (2) 2 (4) 4

Water is poured into a container that has a leak. The mass 'm' of the water is given as a function of time 't' by, m=5t^0.8 - 3t + 20, with t>=0, mass in grams and t in seconds a. at what time is the water mass greatest, and b.

Elaine and her bike have a combined mass of 50 kg. in a bicycle race, Elaine uses the pedals to create a forward force of 75 N. Assume that there is a constant 15 N of air resistance and an additional 10 N of rolling friction from the wheels.

Degausser creates a magnetic field that erases data from magnetic storage media. a. True b. False

A submarine is carefully navigating its way to the seafloor. It sends out "pings"-a radar wave-as it descends to keep track of its location in relation to the ground. The wavelength of the radar as it leaves the ship is 3 cm.

Which of the following is true for a system consisting of a mass oscillating on the end of an ideal spring? A. The kinetic and potential energies are equal at all times. B. The kinetic and potential energies are both constant. C.

What is the chain of energy transfers that create surface ocean currents on the ocean

A 2.5m pendulum is pulled back at an angle of 15.0 degrees and released. it's speed at the bottom of the swing is, A) 1.29 m/s B) 1.67 m/s C) 6.88 m/s D) 7.00 m/s