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A point charge q is located at the center of insulating uniformly charged sphere of radius R = 50 cm and net charge Q = 5 µC. The electric potential at distance r = 20 cm from the center of th
Beginning from rest, a block of 4.0 kg slides 2.60 m down a rough 30.0° incline. The coefficient of kinetic friction among the block and the incline is µk = 0.436. (i) Find out the work do
What diameter of cylindrical wire must be employed to make a fuse which will limit the current to 0.38 A?
(i) Compute the angular momentum of Earth which arises from its spinning motion on its axis, treating Earth as the uniform solid sphere.
Determine the horizontal and vertical components of force applied on the left end of the rod by the hinge. (Take up and to the right to be in positive directions.)
Determine the angular speed of the system if the child arrives at the edge?
A solenoid having 410 turn of length 32.0 cm and radius 2.90 cm carries a current of 5.20 A. Determine the following. (i) The strength of magnetic field within the coil at its mid-point.
The radius of space station is R = 80.5 m, and the mass is M = 2.13 • 105 kg. When the thrust of the rocket motor is F = 161 N, determine how long must the motor fire?
At serve, a tennis player aims to strike the ball horizontally. Determine what minimum speed is needed for the ball to clear the .90 m high net around 15 m from the server, when the ball is "launche
Determine the new angular speed when an asteroid (m = 1.89 x 1022 kg) strikes the Earth while traveling at a speed of 3.07x 103 m/s (Suppose the asteroid is a point mass as compared to the radius of t
find out an equation (specific expression) for the angular velocity of the platform as a function of time. Determine the angular velocity if the man reaches the edge of the platform?
(i) Determine how many turns of wire must the coil have to generate the desired emf? (ii) Determine the maximum current induced in the coil. (iii) Find out the induced emf as the function of time.
(i) When the g coefficient of static friction is 0.53, determine minimum force magnitude is needed from the rope to begin the crate moving? (ii) When µk = 0.30, determine the magnitude of the
Assume that the current suddenly rises to 1.25 A in the similar direction as before, due to a raise in speed of the bar. Determine (i) the emf induced in the rod, (ii) the latest speed of the rod.
Assume that the magnetic field changes uniformly from 0.500 T to 0.200 T in the next 0.600 s. Calculate (i) the induced emf in the coil and (ii) the magnitude-direction of the induced current.
(i) Determine the magnitude of the velocity of third piece in terms of the given variables? (ii) Find the direction of its motion (as an angle relative to the positive x-axis)?
The object of height 2.84 cm is positioned 12.6 cm from the diverging lens of focal length 12.6 cm. Sketch a ray diagram to determine the height and position of the image.
Sunlight hits the surface of a lake at an angle of incidence of 64.4°. Determine at what angle with respect to the normal would a fish view the Sun?
An inductor of 0.5241 mH consists of a length which is four times its diameter. When it is wound with 12.2 cm-1 turns per centimeter, determine its length?
Determine the magnitude of the rms magnetic field of the gamma-ray pulse at the surface of magnetar, supposing that the pulse radiates uniformly outward in all the directions. (Suppose a year is 365
A skier is at the top of the hill (point a) he weighs 62kg. There is no friction in this question as per the teacher. The height of the hill is 40m -- Compute the velocity at the bottom of the hill
When the ball is in contact with the bat for a time of 1.10 ms, evaluate the average force applied on the ball by the bat? Avoid the weight of the ball, as it is so much less than the force of the b
A 30cm x 60cm rectangular circuit having a 15 ohm resistor is perpendicular to the magnetic field which begins out at 2.55T and steadily reduces at .4T/s.
A traveler drags on a suitcase strap at an angle of 35° over the horizontal. When 516 J of work is completed by the strap while moving the suitcase a horizontal distance of 16.0 m, determine the
Find out the magnitude of the normal force on the addict from the seat if both go through the maximum point of the circular path?