Can an ordinary object, like a skateboard, be weight-less? Yes or No

At constant pressure, the volume of a fixed mass of gas and its kelvin temperature are said to be a. directly related. b. inversely related. c. unrelated. d. constant.

1. Plastic, rubber, and wood are examples of what kind of material? 2. Name the 3 methods that can charge up objects. 3. Which part of the atom is negatively charged? 4.

16. The spreading of sound waves around openings in barriers is called A. reverberation. B. an echo. C. diffraction. D. refraction.

The light ray is entering the water from the air. How should the light ray respond to the change of medium? A. It will slowdown and bend upward B. It will speed up and bend upward C. It will slow down and bend downward D.

A car traveled at an average speed of 60 mph for two hours. How far did it travel? A. 30 miles B. 60 miles C. 120 miles D. 150 miles

Why is the liver important in digestion

A building 190 feet tall casts a 30 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree) ?

The frequency of which type of electromagnetic wave is just higher than that of visible light? A. infrared waves B. gamma rays C. x-rays D. radio waves E. ultraviolet rays

Two circular coils are concentric and lie in the same plane. The inner coil contains 140 turns of wire, has a radius of 0.015 m, and carries a current of 7.2 A. The outer coil contains 180 turns and has a radius of 0.023 m.

Which best describes how magnesium (mg) and oxygen (o) bond? they form an ionic bond by exchanging two electrons. they form an ionic bond by exchanging three electrons. they form a covalent bond by sharing one electron.