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Question: In major league baseball, the pitcher's mound is 60 feet from the batter. If a pitcher throws a 92 mph fastball,
Part A: How much time elapses from when the ball leaves the pitchers hand until the ball reaches the batter?
Please show work I think I have the answer just not positive.
A neutron star of 2.00 solar masses is rotating at a rate of 1.00 revolutions per second. What is the radius of the neutron star? Assuming its density is uniform, find the rotational inertia and its angular momentum.
A mass m is attached to an ideal cord of length L (figure at left). What is the tension in the cord at that moment
How many joules of kinetic energy does a 750-{rm kg} automobile travelling at the typical highway speed of 65 {rm{ mi/h}} have.
Compare how Helmholtz free energy describes any change in a system that takes place at constant temperature T and how Gibbs free energy describes any change that takes place at constant temperature T and pressure P. In each case, what happens if no n..
Two trains on separate tracks move toward one another. Train 1 has a speed of 100 km/h, train 2 a speed of 60.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Suppose the speed o..
an ore sample weighs 20.0n in air. when the sample is suspended by a light cord and totally immersed in water the
A 3.0 µC charge lies 10.0 cm to the right of a 2.0 µC on the axis. What is the magnitude of the force on the 2.0 uC charge
A series RLC circuit with R = 43 Ohms , L = 270 mH , Find the maximum frequency of the frequency range over which the peak current will exceed half its value at resonance
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons, What net force is exerted on the ship
A120g copper bowl contains185g of water, both at 20.0°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, How much energy (in calories) is transferred to the bowl
1. give the definition of electrical circuit. draw the simplest electrical circuit and mark the directions of
Suppose a car is traveling at 13.0 m/s, and the driver sees a traffic light turn red. What is the stopping distance of the car
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