Approximately how long is a light-year?

A. 9.5 billion km

B. 95 billion km

C. 9.5 trillion km

D. 95 trillion km

How many watt hoves are there in 895g of matter?

A chemical bond results from the mutual attraction of the nuclei for

A plane can fly at 385mph in still air. If it can fly 220 miles downwind in the same amount of time it can fly upwind at 165 miles, what is the velocity of the wind?

The evaporation of the oceans surface water as part of the water cycle is caused by

A solution has a ph level of 8. Which best describes the solution? A strong acid A strong base A weak acid A weak base

Using the atomic symbol above report how many protons, neutron, and electrons an atom of neon contains.

Which of the following is not shorthand to describe one of the three types of ecological relationships? +/+ -/+ +/0 -/0

Which is a characteristic of an electromagnetic wave?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.