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A thin 1.7-m metal rod sustanins a longitudinal standing wave with vibration antinodes at each end of the rod. There are no other antinodes. The density and Young's modulus of this metal are, respectively, 5800 kg/m3 and 5.1x1010 N/m2. What is the frequency of the rod's vibration? Rounded to two significant figures.
Listed below are the forces that were applied to the cart in these three runs. Run Force (N) Run = 1(diamonds), Use Newton's second law to estimate the mass of the cart in kg from this set of data
A warehouse worker pushes a crate along the floor, by a force of 7.0{\rm N} that points downward at an angle of 45^\circ below the horizontal.Find the horizontal component of the push. Find the vertical component of the push.
A box (m1=1.2 kg) is being pulled up an (not necessarily frictionless) incline by another mass (m2=0.85 kg), which is descending straight down. How much energy did the hanging mass lose
Just as you had done in your lab, imagine that you have a solid uniform disk (same as a uniform cylinder) with a string wound around its rim. What is the angular acceleration of the disk
A 0.55 kg projectile is launched from the edge of a cliff with an initial kinetic energy of 1550 J and at its highest point is135m above the launch point. What was the vertical component of its velocity just after launch
A 1.15-k? resistor and a 590-mH inductor are connected in series to a 1250-Hz generator with an rms voltage of 13.1V, What is the rms current in the circuit
an old fashioned (vinyl) record rotates at a constant rate of 33 rpm. if it plays music for 16 mins, how far does a point on the edfe travel in meters
Suppose a disk of radius R and mass M starts from rest at a height of 2.5m, What is the linear speed of the disk when it leaves the incline
A 32.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 21.00 m. Calculate the mechanical energy lost due to friction
Helium gas with a volume of 2.55L , under a pressure of 1.26atm and at a temperature of 44.0?C, How many grams of helium are there? The molar mass of helium is 4.00g/mol
A ballplayer catches a ball 2.75 seconds after throwing it vertically upward. With what speed did he throw it? Calculate the final & resultant velocity and acceleration.
A 11.0 kg monkey starts to climb a long rope to reach a banana located at a height of 6.50 m, Calculate the least amount of time the monkey could take to reach the banana without breaking the rope
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