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A 2 kg projectile is shot straight up with initial velocity v0= 50 m/s. (g=9.8 m/s2) find:
a. initial kinetic energy
b. Maximum value of the gravitational potential energy
c. peak height of its trajectory
A .14kg baseball with an initial speed of 28m/s rebounds with a speed of 34m/s after being struck with a bat. What was the average force between ball and bat
In a certain reference frame, a particle with momentum of 7 MeV/c and a total energy of 10 MeV. What is the relative speed of the two reference frames
Compute the net electric flux through the hull of the submarine. Is the number of electric field lines leaving the submarine greater than, equal to, or less than the number entering it?
What is the speed of a beam of electrons when the simultaneous influence of an electric field of 1.56×104V/m and a magnetic field of 4.62×10?3T, What is the period of the orbit
a particle with mass 2.30 g and charge 10.0 c enters through a small hole in a metal plate with a speed of 8.50 ms at
Your forehead can withstand a force of about 6.0kN before fracturing while your cheekbone can only withstand about 1.3 kN. what is the magnitude of the balls deceleration
Two blocks, each have a mass of 10kg are being accelerate across a surface that has a coefficient of friction of 0.2 by applied force F=80N. determine the acceleration of each block
A spherical Balloon is inflated at the rate of 144pie cubic inches per minute (in^3/min). How fast is the radius of the balloon changing when the radius is 4 inches? Recall the formula for volume of sphere: V(4/3) pieR^3?
A horizontal wire of length 0.43 m, carrying a current of 6.9 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
A new General Electric kitchen stove has a mass of 68kg and the dimensions. The stove comes with a warning that it can tip forward if the person stands or sits on oven door when it is open.
The proper length of one spaceship is three times that of another. The two spaceships are traveling in the same direction and, while both are passing overhead, determine the speed of the faster spaceship
In our Physics lab, a cart is attached to a failing fan which does not run at a constant speed. Find the power delivered to the particle when it is at x = 1.5 m
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