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Q.a production line inspector wants a lens that produces an upright image with magnification of 7.5 when it is located 14.0 mm from a machine part.
What is its radius of curvature?
Q. Unpolarized light with an intensity of 275 W/m2 passes through two polarizers whose transmission axes are at an angle of 30.0° with respect to each other. What is the intensity of the light transmitted through both polarizers?
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
A ship sets out to sail to a point 148 km due north. An unexpected storm blows the ship to a point 148 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angl..
Find an equation for the change in wavelength of a scattered photon by Compton effect.
when the field is vertical to the plane of loop, when the field makes a 90.0 angle with the normal to plane.
A 1.00 kg glider on a horizontal air track is pulled by a string at an angle θ. The taut string runs over a pulley and is attached to a hanging object of mass 0.500 kg .
A force of k is applied to an object for a small fraction of a second, t_k, less than the duration of one frame, t_f. Our simulation doesn't support applying forces for less than an entire frame, so if we wanted to simulate the effect of force k over..
A charge of -4 nC is at the origin and a second charge of 14 nC is at x = 3.00 m. Find out the magnitude and direction of the electric field halfway in between two charges.
A disk of radius R = 9 cm is pulled along a friction less surface with a force of F = 15 N by a string wrapped around the edge. At the instant when d = 28 cm of string has unwound off the disk, what is torque exerted about the center of the disk.
What is volume concentration
A new circus act is called the Texas Tumblers. Lovely Mary Belle swings from a trapeze, projects herself at an angle of 53, and is supposed to be caught by Joe Bob, whose hands are 6.10 above and 8.02 horizontally from her launch point. You can ignor..
Janet jumps off a high diving platform with a horizontal velocity of 1.55 m/s and lands in the water 1s later. How high is the platform? The acceleration of gravity is 9.80 m/s2.
A flywheel in a motor is spinning at 560 when a power failure suddenly occurs. The flywheel has mass 40.0 and diameter 75.0. The power is off for 34.0, and during this time the flywheel slows down uniformly due to friction in its axle bearings. Durin..
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