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Problem: A baseball outfielder throws a 0.150-kg baseball at a speed of 39.2 m/s and an initial angle of 29.0°.
Part A: What is the kinetic energy of the baseball at the highest point of its trajectory?
I need help to find the kinetic energy of the baseball at the highest point of its trajectory.
Drops of rain fall perpendicular to the roof of a parked car during a rainstorm. find the average force exerted by the rain on the roof
A bob of mass m is suspended from a string of length L, forming a pendulum. The period of this pendulum is 2.6 s. what is the period of oscillation
Find an expression for work done by the gas
Two circular metal plates of radius 0.21 m and thickness 8.3 mm are used in a parallel plate capacitor. A gap of 3.9 mm is left between the plates, and half of the space (a semicircle) between the plates is filled with a dielectric for which ? = 10.9..
A 100-W electric-resistance heater inside the tank is energized for 10 minutes. Calculate the mass of CO2 in the tank and the temperature and pressure in the tank at the end of the 10 minutes period
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 600 and 200 K, respectively. How much heat is convertedd into work?
The prong of a tuning fork moves back and forth when it is set intovibration. The distance the prong moves between its extremepositions is 2.29 mm. If the frequency ofthe tuning fork is 440.5 Hz, what are the maximum velocity and the maximum accel..
A charge q = 2.00 uC is placed at the origin in a region where there is already a uniform electric field E_vec = (100 N/C)i_hat. Calculate the flux of the net electric field through a Gaussian sphere of radius R = 10.0 cm centered at the origin.Is it..
A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field B = 0.20 i T + 0.40 j T. What is the potential energy of the loop
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava with a 40Ar/40K ratio of 0.34
This situation is like that of a car on a curve that is banked at an angle of 21.50°. If she tries to make the turn without slowing down, what is the minimum distance from the seawall that she can begin making her turn and still keep away from a c..
Excited states do not in general live very long before they decay.Suppose a certain excited state lives just 10^-7 s. In that case weknow the time when the atom is in the excited state quiteaccurately--to within ?t=10^-7 s. That means there is a ..
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