2. How much of the world's electricity currently comes from coal?

Select one:

a. 25%

b. 40%.

гоо оо.

с. 50%

d. 75%

To extend the electrical system between the main panel and the secondary panel, the electricians used A. Receptacles B. Circuit breakers. C. feeders. D. insulators

Which variable is directly related to force A) charge (q) B) radius (r) C) K

A ball is falling toward the Earth with a speed of 10m/s and has a mass of 0.5kg. what's the kinetic energy?

Blood pressure is measured when the blood is pumping (systolic) and when the heart is resting (diastolic). When pressure readings are given, the systolic is given first, and healthy blood pressure is around 120 over 80 mm Hg.

The mass of car 2 is twice the mass of car 1. If both cars have the same velocity, how does the kinetic energy of car 2 compare to car 1? Car 2 has four times the kinetic energy. Car 2 has twice the kinetic energy.

Define the term volt.

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?

If a 1.50 kg mass revolves at the end of a string 0.50 m long, and its tangential speed is 6.0 m/s, calculate the centripetal force.