What's the speed of sound?

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What is the speed of sound?

This is science A Woman cycles for 3hrs at a speed of 40km/h --what distance did she travel

Arrange the following parts in the order that matches the light path through a light microscope: specimen, ocular lens, objective lens, body tube, light source.

Show the max. Range of a projectile in any way is described in precisely the same time where it would fall freely under gravity through this space starting from rest?

Whats an equation for the volume of a cylinder

When we touch a steel pole and a newspaper simultaneously we believe that the rod is relatively colder .why?

Tell awesome facts about light to me.

When we touch a steel rod and a newspaper simultaneously we believe the rod is .why?

Is gravity an instance of a law?

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Show the max. Range of a projectile in any way is described in precisely the same time in which it would fall under gravity through this distance starting from rest?

Whats an equation for a cylinder's volume

Tell me awesome truth about light.

A roller coaster car rapidly picks up speed as it rolls down a hlope. As it starts down the incline, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. ...

Using an example, explain how atoms are.

Explain the connection between observations and hypotheses.

What if a wave reaches a type of matter it cannot pass through? Does it just stop moving? If not, where does this go?

If you have a mass of 50 kg on Earth, what is your weight in Newtons?

Find the density of an unknown liquid in a beaker. The empty beaker's mass is 165 g. With the unknown liquid inside the beaker, the total mass is 309 g. The volume of the liquid that is unknown...