Which position represents spring in the northern hemisphere

An 80 kg skateboarder moving at 3 m/s pushes off with her back foot to move faster. If her velocity increases to 5 m/s, what is her change in kinetic energy as a result? J How much work did she perform? J

How do the values of δg∘ calculated this way compare to those calculated from δh∘ and δs∘? how do the values of calculated this way compare to those calculated from and? all of the values are compararable. some of the values are compararable.

If an object is moving in a circle at constant speed, then its accelerating. True or false

How fast should a 250g mouse run so that it can have the same momentum as a 3ton (1metric ton = 1000kg 1g=0.001kg) can a mouse realistically attain this speed yes or no?

A conveyor belt ramp of length 7m is inclined at 20° with respect to the horizontal and is used to move objects from one location to another location.

Light enters an equilateral triangle prism in a direction parallel to one side. The prism is made of glass with an index of refraction of 1.52. What is the angle between the incoming ray and the ray that leaves the prism on the other side?

What are three examples of circular motion?

If the mass of the helicopter is 4500kg, and the net force on it is 18,000 N, what is the helicopter's acceleration?

True or false about a geothermal power plant gets energy by using methane from decomposition

How would using a lower concentration of hydrogen peroxide affect the rate of reaction