15. For waves moving at a constant speed, if the wavelength is doubled, the frequency is

doubled

halved

unchanged

quadrupled

Scietist who studies the forces that make and shape planet earth

A car is traveling at 10m/s before it increases its speed to 30m/s for 120m. How long does it take to do this?

How heat is conducted along a metal bar?

What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)

69. I A car starts from rest at a stop sign. It accelerates at 2.0 m/s² for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s2 for the next stop sign. How far apart are the stop signs?

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2