True or false:

the speed of the wave is determined by multiplying the wavelength by the frequency

Instruments use resonance to amplify sound. t/f

Which gases are carried by red blood cells? Select two options. oxygen helium carbon dioxide nitrogen hydrogen

A good hypothesis is in the following format ... A) Because ... B) What if? ... C) I think that ... D) If ..., then ...

What is the weight on earth of a girl with a mass of 23kg?

What word means how fast the electrons flow.

One disadvantage of this type of power is that it still pollutes the air. biomass geothermal power hydropower solar power You want to create a new warming appliance that is safe.

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