which of the following objects can you use to roughly visualize a length of 1 meter ? the length of an ant on a sidewalk? the length of a 2 liter bottle of soda pop? the height of a kitchen counter? the length of a football field?

Explanation of longitudinal wave and real life example.

How much heat is absorbed by 62g iron skillet when it's temperature rises from 8c to 27c

True or false: electricity follows a circular pattern?

Which law is being demonstrated when a swimmer moves forward through the water?

Basing on Newton's second law of motion, if the force on an object is 20N and its mass 5 g, what is its acceleration?

Determine which factors will increase the reaction rate and which factors will decrease te reaction rate.

In most four-stroke internal combustion engines, when does the piston move upward? A. during the compression stroke only B. during the compression and exhaust strokes C. during the intake and exhaust strokes D. during the power and intake strokes

All of the fallowing are possible sources of error in a scientific investigation exept for a. measuring the materials of an experiment incorrectly. b. not controlling all the variables in an experiment c.

If you had been traveling that fast and the light actually was yellow, what color would it have seemed to you? a. yellow b. blue c. red d. orange e. invisible (ultraviolet or infrared)

two forces 5N and T act on a stone and are directed due north west and north east respectively. If the 5N force makes an angle 60° with the vertical and the weight of the stone is 4N, find the magnitude of the force T