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One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 85.0m . The rope is stretched taut by a box of mineral samples with mass 15.0kg attached at the lower end. The mass of the rope is 2.20kg . The geologist at the bottom of the mine signals to his colleague at the top by jerking the rope sideways. (Do not neglect the weight of the rope.)
What is the wave speed at the bottom of the rope?
What is the wave speed at the middle of the rope?
What is the wave speed at the top of the rope?
What is the electric field strength between the disks? A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have to just barely reach the positive disk?
The radius of the circle traced out by the second hand on a clock is 6.00 cm. Determine the value of t in seconds
A T-bar tow is used to pull 80 skiers up a 600-m long slope inclined at 15.0 degrees to the horizontal at a speed of 2.5m/s. Find the motor power required to run the T-bar
Unpolarized light passes through 5 parallel ideal polarizing filters. What is the ratio of the initial intensity to the final intensity of the light
What is wave number
question1a professors office door is 0.92 rm m wide 2.0 rm m high 4.0 rm cm broad has a mass of 25 rm kg and pivots on
An infinite line of charge produces a field of magnitude 3.4 × 104 N/C at a distance of 2.5 m. Calculate the linear charge density
A laser beam of power 4.60 W and diameter 2.6 mm is directed upward on the circular face ( diameter of the face
A resistance R and a 3.4-H inductance are in series across a 60-Hz ac voltage. The voltage across the resistor is 34 V and the voltage across the inductor is 39 V. Assume that all voltages in this problem are rms voltages. (a) What is the resistance ..
A standing wave of frequency 3.03 Hz is set up on a string 2.6 m long with nodes at both ends and in the center
Suppose a modern power plant has a 1.00-GW electric power output at 500 V. It is stepped up to a transmission voltage of 750 kV in a series of five identical transformers. What is the current in the high voltage delivery lines
What is the direction of an electric field that will balance the weight of a 3.7g plastic sphere that has been charged to -3.1nC ? Upward or Downward
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