light takes 8 minutes 30 seconds to travel from sun to the earth the velocity of light with 3 million kilometres square. find the distance of Sun from the Earth

If a machine has an efficiency of 50 percent and an MA of 3, what is its IMA?

Describe using examples how objects can be at rest and in motion simultaneously

Time period of a simple pendulum is measured at Karachi what changes will occur in time period if measured at Mount Everest

If the distance between two electrons is doubles, what would happen to the electric force between them?

An observer on Earth measures the length of a spacecraft travelling at a speed of 0.700c to be 78.0 m long. Determine the proper length of the spacecraft.

In the bathroom of your house you would like to run a 360 W radio, a 60 W phone charger, a 960 W hair dryer, and three 120 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices?

To remove 700 j of heat from a refrigerator, the compressor in the refrigerator does 500 j of work. How much heat is released into the surrounding room

The elements least likely to form bonds are found in group__ a) 15 b) 16 c) 17 d) 18

F a metal ball suspended by a rod is at rest, which force is responsible for balancing the force due to gravity?

If the mass of a material is 48 grams and the volume of the material is 8 cm^3, what would the density of the material be?