A baseball is thrown with 100 J of energy. if the ball is moving at 20.0 m/s, what is the mass of the ball in KG

What is created when two continental crusts collide

The police department is excited to have some new motorcycle as units. One officer said that these motorcycles can go from 0 miles per hour to 80 miles per hour and just 6 seconds the officer is describing the motorcycle.

What is a method to predict an earthquake?

Just how strong is the electric force? suppose you had two small boxes, each containing 1.0 g of protons.

Identify the characteristic of gravity that is incorrect,

Kim holds a pinwheel in the air and says it can be used to model a source of energy. Identify the type of energy Kim's pinwheel models. Explain the type of energy source used.

An example of a stable system

What causes chemical weathering? a. damage caused by animals and plants c. natural acids b. ice wedging d. physical factors

1. Strzała o masie 20 g tuż po wystrzale ma prędkość 50 m/s. Oblicz pracę wykonaną przez zawodniczkę. Ile wynosi energia potencjalna sprężystości napiętej cięciwy? 2. Na trampolinę o współczynniku sprężystości k=2 kN/m stanął zawodnik o masie 80 kg.

Two small plastic spheres between them has magnitude 0.22 N. What is the charge on each sphere is one the other? Explain whether it can be determined from the information give, whether the charges are positive or negative.