Sound travels at a speed of about 340m/s in the air. How long will it take an explosion to be heard from a distance of 20 miles away?

A sports car and a moving van are traveling at a speed of 30 km/h. Which vehicle will be easier to stop? Why?

Red, orange, yellow, green, blue and violet make up which of the following? white light black light visible light both a and b

Males have only a single X chromosome. When is there a 0% chance that they will inherit color blindness on that chromosome? A. when the mother and the father have the disorder B. when the father has normal vision and the mother is a carrier C.

Hd 10180g orbits with a period of 600 days at a distance of 1.4 au from its star. what is the ratio of the star's mass to our sun's mass?

Show all your work clearly on the scratch paper) Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 5.00 m. A person is standing 12.

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks

Average mass of a toy car (small, hot wheels) ?

A cannon directed straight upward launches a ball with an initial speed v. The ball reaches a maximum height h in a time t. Then, the same cannon is used to launch a second ball straight upward at a speed 2v.

Does the sun fuse hydrogen into helium or vice versa?

Is it possible to put a distance versus time graph to be universal go mine