The law of conservation of energy applies:

A. whenever PE = 0.

B. in isolated systems.

C. in all systems

D. only in open mechanical systems.

the goodness of fit is when caregivers recognize there childs temperment and work with it in order to raise a well and adjusted child

What is trapezord mean

While on a moving elevator during a certain perfod or time, Frank's apparent weight is 620 N. If Frank's mass is 70 kg, what is the magnitude and direction of Frank's acceleration?

1. In this experiment what force acts between the two coils? 2. When the two coils are attracting, how do you balance the upper coil? 3. What will you measure in this experiment? 4.

A hollow sphere of negligible mass and radius R is completely filled with a liquid so that its density is rho. You now enlarge the sphere so its radius is 2R and completely fill it with the same liquid. What is the density of the enlarged sphere?

An 8 kilogram bowling ball is rolling in a straight line toward you. if its momentum is 16 kg * m/s, how fast is it traveling?

Explain why a moving object can be in equilibrium

Design an investigation to compare the durability of the three different brands

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly?