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A mass on a string of unknown length oscillates as a pendulum with a period of 2.2s . Parts A to D are independent questions, each referring to the initial situation.
Part A What is the period if the mass is doubled? Express your answer to two significant figures and include the appropriate units.
Part B What is the period if the string length is doubled? Express your answer to two significant figures and include the appropriate units.
Part C What is the period if the string length is halved? Express your answer to two significant figures and include the appropriate units.
Part D What is the period if the amplitude is doubled? Express your answer to two significant figures and include the appropriate units.
A 3 microcoulomb charge is at the coordinated (3,4)mm. A -4 microcoulomb charge is at the coordinates (-2,5)mm. find the Electric field vector in polar coordinates at the origin
A small rock with mass 0.12 is fastened to a massless string with length 0.80 to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45 with the vertical. Air resistance is negligible.
Explain the di?erences between the electron energy spectrum of β- decay and that from an internal conversion process. What are the di?erences of these two decay mechanisms?
A top spinning at 4.00 rev/s comes to a stop in 64.0 seconds. Assume that the top slows down at a constant rate. How many revolutions does it make before coming to a stop
In a 1.28T magnetic field directed vertically upward, a particle having a charge of magnitude 8.80uC and initially moving northward at 4.72 km/s is deflected toward the east
A mass on a spring is observed to complete 15 oscillationsin 30 seconds. What are the period(seconds) and the frequency(Hz) of motion
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if the boy is traveling at 1m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman?
A square is 1.0 m on a side. Charges of +4.0 uC are placed in twodiagonally opposite corners. In the other two corners are placed charges of +3.0 uC and -3.0 uC. What is the absolute potential in the square's center?
A woman on a bridge 71.0 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 6.60 m more to travel before passing under the bridge. ..
White light is incident on a soap film (n = 1.30) in air. The reflected light looks bluish because the red light (? = 695 nm) is absent in the reflection, What is the minimum thickness of the soap film
A lamp is designed to operate at a temperature of 3100K. If the lamp is operated at a higher voltage that raises its temperature to 3500K
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