A wave has a wavelength of 13 mm and a frequency of 18 hertz. What is its speed?

How does energy from the sun reach earth?

A 50.0 kg child stands at the rim of a merry-go-round of radius 1.50 m, rotating with an angular speed of 3.00 rad/s. (a) what is the child's centripetal acceleration? incorrect: your answer is incorrect.

How much work is performed by a student pulling a sled using 175 N of force over a distance of 200 meters?

If the moon phase is seen as a waxing crescent moon in london, what phase of the moon would be seen in new york if it's viewed at the same time?

How much heat is needed to change the temperature of 3 grams of gold (c = 0.129) from 21°C to 363°C? The answer is expressed to the nearest whole number.

A long distance runner has an average speed of 4m/s during a race. How far does the runner travel in 20 minutes?

Density is calculated by dividing

The one island species evolved into three different species. This is called?

Find the components of vector M shown in figure 5-7

Electrical current is actually made of a. static charges. b. moving electrons. c. high or low voltage. d. resistance within a circuit.