How to calculate wave length for the speed an frequency

One example of an energy-efficient device is a (n) a. fluorescent light bulb. b. drafty window. c. incandescent light bulb. d. gasoline-powered car.

One way that animals adapt to seasonal change

A small box of mass m1 is sitting on a board of mass m2 and length L (Figure 1). The board rests on a frictionless horizontal surface. The coefficient of static friction between the board and the box is? s.

Convection is a means of heat transfer that involves fluids, such as liquids or gasses. The process of convection is responsible for air and water currents as in the illustration.

1 A force F=8N makes an angle of 45ᵒ with the horizontal. The X and Y component of the force are 2 Salim walk six miles in a straight line in a direction north of east, and he end up two miles east and several miles north.

What happens to sound waves after they are received by our ears?

Which of the following chemical equations demonstrates that atoms are conserved during a chemical reaction?

How can an objects momentum be calculated

Give 10 examples of units you might use or see in any given day

What are three problems that can result from poor soil management? Erosion Nutrient depletion Development Desertification