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Find the refractive power of a magnifying glass which consists of an angular magnification of 5.41 if the image of the stamp is positioned at the near point?
Both encompass glasses which correct their vision to a normal near point (25.0 cm from the eyes) and both wear glasses 2.0 cm from the eyes. Relative to the eyes, determine the closet object which c
A nearsighted patient's far point is around 0.669 m from her eyes. She is capable to view distant objects in focus if wearing glasses having a refractive power of -1.54 diopters. Find out the distan
a) Approximate the uncertainty in any component of the momentum of an electron confined to the area of this size. b) From your answer to (a), approximate the kinetic energy of electron.
A uniform rectangular sign having width 52.2 cm, height 29.6 cm and negligible thickness suspends vertically from supporting hinges joined at its upper edge. Determine the period of small-amplitude
What occurs when the laser emits two times the number of photons per second? (i) The photoelectrons are emitted from the surface having twice the maximum kinetic energy.
A proton (having charge +e mass mp), a deuteron (having charge +e, mass 2mp) and an alpha particle (having charge +2e, mass 4mp) enter a uniform magnetic field, B, with the similar speed, v. The pro
(i) Evaluate the distance of the final image relative to the converging lens. (ii) Find out the height of the final image (comprising the proper algebraic sign)?
A piece of wire bent to form two perpendicular straight segments carries a current of around 4.7A, first all along the x-axis from x = 0.40(m) to the origin, and then all along the y-axis from the o
The two wires are made from the similar material. One wire consists of a resistance of 0.10 O. The other wire is two times as long as the first wire and consists of a radius which is half as much.
An LR circuit can be employed as a ‘phase shifter’. Suppose that an input source voltage V = V_o*sin (wt+ Phi) is joined across a series combination of the inductor L = 55mH and resistor
The wire carries a current of 1.5 A eastward and moves horizontally to the north. When a magnetic field of .2 T points into the surface, determine the surface's coefficient of friction of the wire m
A specific tower clock identical to Big Ben consists of an hour hand of 2.70 m long with a mass of around 58.0 kg and a minute hand 4.45 m long having a mass of 100 kg. Compute the net rotational ki
A ball of 100 g and a ball of 240 g are join by a 34 cm long, mass-less, rigid rod. The balls rotate around their center of mass at 120 rpm.
A current of 3.5 A is maintained in a simple circuit having a net resistance of 1000 Ohms. What total charge passes via any point in the circuit throughout a thirty second interval?
At what rate is the boy of 60.0 kg employing energy if he runs up a flight of stairs 10.0 m high, in 8.00 s?
A point particle having mass m1 = 2.00 kg is at the origin and the second point particle of mass m2 = 3.00 kg is on the x axis at x = 8.0 m. Determine the gravitational field at the given locations.
A homogeneous cylinder of 40 kg of radius 21 cm is rolling devoid of slipping all along a horizontal floor at a speed of 11 m/s. Determine the minimum amount of work which was needed to give it this
You set out to design a car which employs the energy stored in the flywheel comprising of a uniform cylinder of 99 kg of radius R that consists of a maximum angular speed of around 440 rev/s.
The rod is released if it makes an angle of around 37 degrees with the horizontal. Determine the angular acceleration of the rod at the moment it is released?
The puck is revolving at a distance 2 m from the hole having an angular velocity of around 3.0 rad/s. The cord is then pulled from beneath, shortening the radius to 1.0 m. Determine the latest angul
The moment of inertia of a uniform rod around an axis perpendicular to the rod and via the center of mass of the rod is given by (1/12) ML^2. Evaluate the magnitude of the original angular accelerat
When the rod is released from rest in a horizontal position, evaluate the angular speed of the rod as it rotates via its lowest position?
Determine the maximum coefficient of static friction among the box and the floor in such a way that the person can push horizontally on the box and cause it to begin moving?
Then describe why the composition of magma can modify from mafic to felsic with reducing temperature.