In which situation is there NO work being done?

A) a car being pushed 100 m

B) a 25 N force applied over 6 meters

C) a mouse pushing a crumb across the floor

D) a 10 N force applied to a stationary wall

Q3. What is the minim value of refractive index?

What is the final velocity of a car that starts at 22 m/s and accelerates at 3.78 m/s for distance of 45 m

The Apollo 11 mission was the first mission to land a human on the moon. True False The international space station is a satellite of Earth. True False Astronauts at the international space station stay there for about 6 years. True False

Which kind of waves are sound vibrations made of? transverse circular longitudinal latitudinal

A magnetic field is perpendicular to the plane of a flat coil. Since the magnitude of the field is increasing, an emf will be induced in the coil unless something is done to prevent it.

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?

Where is most of the energy from incoming waves focused? A. spit B. headland C. underwater D. barrier beach

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?