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A converging lens consists of a focal length of 10.0 cm. Locate the object when the real image is positioned at a distance from the lens of (i) 20.0 cm and (i) 50.0 cm. What if? Redo the computation
A rock is fully submerged in water. The rock experiences a buoyant force of around 111 N. Determine the weight of the water moved by the rock?
The life-time of the energy-efficient bulb is 10 000 h and its purchase price is $4.90, while the conventional bulb consists of lifetime 750 h and costs $0.46 per bulb. Find out the total savings ob
If an automobile moves with the constant speed down a highway, most of the power developed by the engine is employed to compensate for the mechanical energy loss due to frictional forces applied on
A charge of -2.500 μC is positioned at (2.810 m, 4.502 m), and a charge of 1.605 μC is positioned at (-2.682 m, 0). The electric potential at the origin is V = 1.14*103 V. There is one point o
An automobile having mass 2000 kg moving at 30 m/s, is braked all of a sudden, with a constant braking force of 10000N. Determine how far does the car travel before stopping?
The object is in front of the converging lens (f = 0.30 m). The magnification of the lens is m = 2.3. (i) Relative to the lens, in what direction must the object be moved so that the magnification mod
i) Compute the wavelength of light in vacuum which consists of a frequency of 6.3 x 1014 Hz. ii) Determine its wavelength in benzene? (The index of refraction of benzene is 1.501.)
An object is located 55 cm from a concave mirror of radius 47 cm. (i) Determine the location of the image. (Enter in cm. Employ a negative number when the image is behind the mirror)
In a dynamic track, explain why is the net kinetic energy greater before impact of two cars than after supposing law of conservation of energy to be valid?
A solenoid is 10.0 cm long, consists of a radius of 0.500 cm and consists of 8000 equally spaced loops. Determine what angular frequency requires driving this inductor so that it consists of a react
A square coil whose sides are 5 cm on a side spins a magnetic field with strength 0.35 T. When the maximum emf generated is to be 5.2 V if the wire is spinning at 3300 rpm, determine the minimum num
A tennis ball on Mars, where the acceleration due to gravity is around 0.379 of a g and air resistance is negligible, is strike directly upward and returns to the similar level 6.20 s later. i) Det
A freight company employs a compressed spring to shoot packages of 2.0 kg up a 1.0m high frictionless ramp. The spring is compressed 30cm and consists of a spring constant of 500N/m. i) Determine th
The sensing coil consists of 30 turns of wire having a radius of 0.68 cm for each and every turn; determine how much emf is generated? What happens to this emf when the bicycle travels faster?
The external torque is then eliminated, and the wheel is brought to rest in 125 s by friction in the bearings. Calculate the moment of inertia of the wheel about the axis of the rotation.
A negative charge of 2.1 x 10-8 C experiences a force of around 0.050 N to the right in an electric field. Determine the field's magnitude and direction at that position?
The radius of the solenoid is to be 1.5 cm and length of 30.0 cm. Determine how many turns of wire are required and the minimum numbers of layers will this acquire?
A small glass bead has been charged to 2.2 nC? Determine the strength of the electric field 2.0 cm from the center of the bead?
Determine the magnetic field strength which could you get within a 2.9 diameter solenoid wound with the wire as closely spaced as possible?
A jogger of 85 kg is heading due east at a speed of 2.2 m/s. A jogger of 55 kg is heading 40° north of east at a speed of 3.8 m/s. Determine the magnitude and direction of the sum of momentum of
Determine how many electrons are emitted from the square centimeter of the surface each second? Suppose that the absorption of each and every photon emits an electron.
You are playing ice hockey in a completely frictionless pond frozen pond? Determine how you can move yourself to the edge of the pond, since without friction you won’t be capable to push again
The cue ball is deflected so that it makes the angle of 30.0 degrees with the original direction of travel. Determine (i) the angle between the velocity vectors of the two balls after the collision
(i) Draw this condition. Comprise the sample, field, current, the charge carriers (supposed to be negative), and the voltmeter. (ii) Compute the concentration of conduction electrons in the silicon.