Which describes a sound wave?

A) A sound wave travels in a vacuum.

B) A sound wave is a longitudinal wave.

C) A sound wave is an electromagnetic wave.

D) A sound wave has one constant speed.

One of your delivery trucks traveled 1,200 miles on 55 gallons of gas. How many miles per gallon did the truck get? (Round off your answer to the nearest hundredth.) A. 45.84 B. 21.81 C. 45.83 D. 21.82

a 1 m length of string is wrapped around a solid disk, of mass. 25 kg and a radius of. 30m, mounted on a frictionless axle. the string is pulled with a tension force of 20 N. what is the angular velocity of the disk after the string is pulled off

Whats a observation?

When a bike goes around a curve at the same speed as it was moving on a staright road, it has uniform motion is this true or false Explain?

What are five examples that illustrate a machine or a person doing work on another?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?

1) what is a calorie?

January 1st 37°F January 7th 48°F January 14th 52°F January 18th 51°F January 21st 45°F January 25th 41°F January 31st 55°F When looking at a data set of numbers, the mean is the average. Look at the table above.

The vector quantity that defines the distance and direction between two positions.