A pitcher throws a baseball at 45 m/s. The baseball has a mass of 400 grams. Disregarding air resistance, the baseball's momentum when it hits the catcher's mitt is a0 kg*m/s.

What is the mathematical equation for calculating the force on a charged particle moving through a magnetic field? Identify each variable.

Which of the following statements about earthquakes is true? A) Earthquakes and volcanic eruptions always occur at the same time. B) Earthquakes can only occur on dry land or under water at depths less than 100 meters.

What scientific term is a well-tested explanation for a set of observations or experimental results?

Shawn and his bike have a total mass of 47.6 kg. shawn rides his bike 2.1 km in 14.2 min at a constant velocity. the acceleration of gravity is 9.8 m/s 2. what is shawn's kinetic energy? answer in units of j.

At what displacement of a sho is the energy half kinetic and half potential?

Which of the following elements would you expect to be most reactive, based on the number of valence electrons it has? A. Magnesium (Mg) B. Sodium (Na) C. Aluminum (Al) D. Sulfur (S)

The earthquake killed about 60 people and was the strongest earthquake to hit

A sailor drops a wrench from the top of a sailboat's vertical mast while the boat is moving rapidly and steadily straight forward.

An eagle carries a fish up 50 m into the sky using 90 n of force. how much work did the eagle do on the fish

Consider a steel guitar string of initial length l=1.00m and cross-sectional area a=0.500mm2. the young's modulus of the steel is y=2.0*1011n/m2.