Why did einstein square the speed of light in his equation e equals mc squared?

Two charges are sitting 1.5 m apart with a force of 3 N between them. They are now moved farther apart to 2.25 m and one of the charges is increased by a factor of 4. What is the magnitude of the new force between the two charges?

The mass of an object is 201 g The object requires 150J to raise its temperature by 100°C. What is the specific heat of the object? 7.46 J/kg-K 0.00130 J/kg - K 3,020,000 J/kg. K 1500 J/kg. K

Striving to reach goals is an important part of personal growth. True False

Most of the asteroids in the solar system circle the Sun in a large ring, which is located immediately between the orbits of and

Heavier boats must displace more water than lighter boats to stay afloat.

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.

What methods can be used to break down substances into elements

8. A gas is contained in a horizontal piston-cylinder apparatus at a pressure of 350 kPa and a volume of 0.02 m3. Determine the work done by the piston on the gas if the cylinder volume is increased to 0.15 m3 through heating.