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A small black ball of mass 100g and radius 2 cm hangs at restfrom a string of length 50 cm. A laser beam with an intensityI = 4 kW/m² and a cross-sectional area 0.01 cm² isfocused on the ball for 0.1 sec, causing the ball to swing. Assuming the ball is completely non-reflective, what is the amplitude of the resulting oscillation?
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.3×1011W. Determine the rms value of the electric field
Light of wavelength 480nm falls normally onfour slits. Each slit is 2μm wide and isseperated from the next slit by 6μm. find the angles of any bright interference maxima that lie inside the central diffraction maximum
a copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1 cm over its natural length to keep the piece in equilibrium. Find the elongation of the spring
If that ball had been released from the same height, but this time above the surface of the moon, how long would it have taken for the ball to hit the ground
Suppose a 69kg person stands at the edge of a 6.4m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1830kg *m^2. obtain the magnitude of the angular velocity of the turntable
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.10 m/s2, What is the value of the ratio m1/m2
A low-power laser used in a physics lab might have a power of 0.40 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.60 s later. Find the depth of the well if the air temperature is 12.0°C
A coil has an induced voltage of 120 volt when the rate of flux change is 0.4 Wb/s. How many turns are in the coil
How much work is done if the same tension is directed parallel to the snow.
If you stand on a pogo stick, you note that its spring-loaded foot is pushed in about 18 cm. what is your approximate oscillation frequency
A regulation soccer field for international play is a rectangle with a length between 90.0m and 111mand a width between 57.0m and 70.0m
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