What is the phenomenon not explained by the equation e=mc2

Why does it seem harder to start sliding a couch across a carpeted floor than it does to keep it moving?

What's the prefix for kilo

A backpack weighs 8.2 Newtons and has a mass of 5 kg on the moon. What is the strength of gravity on the moon?

A rubber band has a spring constant of 75 N/m. How much force is required to stretch the rubber band 0.02 m past its natural length? A. 2.3 N B. 1.5 N C. 75 N D. 3750 N

Calculate the quantity of work, in joules, associated with the compression of a gas from 5.64 L to 3.35 L by a constant pressure of 1.21 atm ... ?

2. A circuit consists of a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor connected in parallel across a 9.00-volt battery. What is the equivalent resistance of this circuit? (1) 0.200 12 (3) 4.62 1 (2) 1.95.22 (4) 45.012

What technology makes up the transducer? a. A phased array c. A PET scan b. An x-ray d. A laser

Explain how birthrates and death rates influence the size of population.

What happens to the resistance of a wire as its length increases? A. The resistance decreases. B. The resistance is not affected by a change in wire length. C. The resistance alternates between high and low values. D. The resistance increases.

What is true about molecular compounds that dissolve in water