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A rock is dropped off the top of a house. On the way down, the rock passes a window. The window is known to be 2 meter tall and the stone takes 0.254 second to fall past the window.
A) Obtain the velocity of rock at top of the window?
B) Obtain the velocity of rock at bottom of the window?
C) Determine how much time was necessary from the instant the rock was dropped until it reached the top of the window?
D) Determine how far above the top of the window was the rock dropped?
Four long straight wires are vertical to the page, and their cross sections form a square of edge length a=13.5cm. All wire carries 7.50 A, and the currents are out of the page in wires1 and 4 and into the page in wires 2 and 3. In unit vector notati..
An electromagnetic wave has an electric field amplitude of475 V/m. What is the magnetic fieldamplitude associated with this wave?
Calculate the total amount of energy that flows into the space between the capacitor plates from to , by first integrating the Pointing vector over the surface that connects the edges of the two circular plates, and then integrating over time.
Two slits spaced 0.410mm apart are placed a distance of 71.0cm from a screen. What is the distance between the second and third dark lines of the interference pattern on the screen
A space shuttle, in a 300km high orbit, releases a 100 kg payload attached by a 10 km long massless rope. Assuming initial motions of lowering payload have damped out and the shuttle and payload are flying in steady state conditions.
A horizontal spring is lying on a frictionless surface. One end of the spring is attached to a wall while the other end is connected to a movable object. Determine the speed of the object at the instant when the spring is stretched by 0.049 meter r..
A uniform rope of mass m and length l is held with its lower end just touching the surface of a scale. Obtain the force of the scale on the rope just as the midpoint of the rope first touches the scale
A shot putter releases the shot with a velocity of 29m/sec at an angle of 22 degrees counterclockwise with the right horizontal
a doubly charged helium atom whose mass is 6.6 10- 27 kg is accelerated by a voltage of 2400 v.what will be its radius
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 19.0° below the horizontal, Find the car's position relative to the base of the cliff when the car lands in the ocean
A popcorn kernel initially at rest explodes into two pieces, one piece having twice the mass of the other. What is the ratio of the velocities of the fragments
A spherical ball of charge has radius R and total charge Q. The electric field strength inside the ball(r?R) is E(r)=Emax(r4/R4). Find an expression for the volume charge density ?(r) inside the ball as a function of r
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