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A rock is dropped from rest from a height above a strange planet, and a strobe-light photograph is taken. The image is damaged in transmission to earth so that an unknown part of the top of the picture is lost. But, five successive images of the falling rock can be seen. The spacing among the remaining images corresponds to 2.1244 m, 2.2133 m, 2.3022 m, and 2.3911 m, and the flash rate is 6.0 flashes per second. Compute the acceleration of gravity on that planet ( m/s2).
A closed hollow sphere of radius R=60.0cm (the surface area of asphere of radius R is 4πR^2) is made of styrofoam havingthermal conductivity k=0.0450 watt/m celsius, find the thickness(assumed uniform) of the styrofoam wall of thehollow sphere
A typical AAA battery has stored energy of about 3400 J. (Battery capacity is typically listed as 625 mA h, Assuming that the potential difference across the capacitor is 1.5 V, what must the area of each plate be
a 0.50 kg mass is attached to a spring of spring constant 20 nm along a horizontal frictionless surface. the object
A 0.2 m^3 rigid tank initially contains refrigerant 134a at 1 MPa, saturated vapor. The tank is connected to a supply line that contains refrigerant 134a at 1.2 MPa, 30 degrees C. Refrigerant is allowed to enter the tank until the tank contains sa..
The radius of Mars about one half that of Earth, and its mass is about 1/10. Using this information, estimate the acceleration due to gravity near the surface of Mars in m/s2
A rifle with a barrel length of 56 cm fires a 14 g bullet with a horizontal speed of 350 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm.
An electron and a positron each of mass 9.1 x 10^-31 kg, are in the same general vicinity and have very small initial speeds
A 4.0 kg mass is attached to a spring constant, k=2500N/m and is resting on a frictionless horizontal surface. Find how long does it take for the block to go from maximum spring length to minimum spring length
A jogger on a circular track that has the radius of 0.150km runs a distance of 1.10km. What angular distance does the jogger covers in radians.
A tuning fork vibrating at 515 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork when waves with a frequency of 484 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
For your final exam in electronics, you're asked to build an LC circuit that oscillates at 15kHz, What values of inductance and capacitance must you use
Two small nonconducting spheres have a total charge of 94.1?C. When placed 1.07 m apart, the force each exerts on the other is 10.5 N and is repulsive. What is the (larger) charge on the spheres? What is the (smaller) charge on the other sphere? What..
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