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What is the magnification of an astronomical telescope whose objective lens has a focal length of 77 cm and whose eyepiece has a focal length of 2.3 cm?
What is the overall length of the telescope when adjusted for a relaxed eye?
cm
A diatomic gas does 320 J of work and also absorbs 600 cal of heat. What is the change in internal energy of the gas?
The engine of a motorboat delivers 29.8 kw to the propeller while the boat is moving at 18.0 m/s . What would be the tension in the towline
A 50 kg diver in a full layout position, What is the diver's angular velocity when she assumes a tuck position, reducing her radius of gyration to 0.25 m
Io, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 x 10^5 km. From these data, determine the mass of Jupiter
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
At a particular instant of time a light beam traveling in the positive x direction, find the direction of the electric field and explain
ow does this change in amplitude affect the wave's frequency.
A bungee jumper undergoes simple harmonic motion with amplitude 7.9m and frequency 0.110Hz. Determine the bungee jumper's velocity
A block of mass m1 = 0.55kg is placed on top of another block of mass m2 =0.91kg, What minimum coefficient of static friction between the two blocks will prevent the upper one from slipping
A grandfather's clock is calibrated at a temperature of 20 C. The pendulum is a thin brass rod with a heavy mass attached to the end. On a hot day, when the temperature is 30 C, does the clock run fast or slow? How much time does it gain or lose i..
A fission-based nuclear bomb (such as those used in World War II) uses the same nuclear reactions, What is the average power Pavg of such a nuclear bomb
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
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