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A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 49.3° and 31.3°, respectively. Obtain the speed of light in the material.
A driving force of the form F(t)=(0.237 N) sin(2pi*f*t) acts on a weakly damped spring oscillator with mass 5.72 kg, Find the amplitude of the oscillator's steady-state motion when the driving force has this frequency
Assume 1400 J of heat are added to6.3 mol of argon gas at a constant pressure of 120 kPa. (Assume that the argon can be treated as an ideal monatomic gas.) Find the change in internal energy. Discover the change in temperature for this gas.
an apple weighs 1.01n . when you hang it from the end of a long spring of force constant 1.41nm and negligible mass it
in each cycle of a carnot engine 97 j of heat is absorbed from the high-temperature reservoir and 63 j is exhausted to
An aircraft weighing 902 N is accelerated at 10.8 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
A hill sled moves from the top of a hill at 1m/s. What is the speed of the sled at the bottom of the hill? How high is it from the ground when it is moving at 5m/s
a tungsten target is struck by electrons that have been accelerated from rest through a 29.9-kv potential difference.
Under certain conditions, the human body can withstand an acceleration of 10 g's. What is the net force (in Newtons) acting on a person
if 1.0 m3 of concrete weighs 4.5 104 n what is the height of the tallest cylindrical concrete pillar that will not
A 78kg astronaut is floating in space, he throws a 600 gram wrench at 20 m/s in the direction away from the space station so that he can begin floating towards space. How fast will he be traveling?
A gun is fired vertically into a 1.40 kg block of wood at rest directly above it. how high will the block rise into the air after the bullet becomes embedded in it
A uniform disk of radius 0.517 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
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