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Q1. A traveller pulls on a suitcase strap at an angle of 35° above the horizontal. If 424 J of work is done by the strap while moving the suitcase a horizontal distance of 17.0 m what is the tension in the strap? Give the answer in SI units.
Q2. If the light from the spotlight strikes the mirror at an angle to the normal, what angle to the normal would you expect for the reflected rays?
Q3. An emf is induced in a conducting loop of wire 1.12 {rm m} long as its shape is changed from square to circular.Find an average magnitude of the induced emf if the change in shape occurs in 4.24 {rm s} and local 0.120-{rm T} magnetic field is vertical to the plane of loop.
A Ferris wheel is a vertical, circular amusement ride with radius 6 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at the constant rate, going around once in 6.4 s. Consider a rider whose mass is 70 kg.
Jamal pulls a 200N sled up a 28° slope at a constant speed by a force of 100N. Near the top of the hill he releases the sled, With what acceleration does the sled go down the slope
when the switch is closed and the capacitor is fully charged, how do you find the voltage across a capacitor
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm). Continue working the problem above by calculating the direction of the force that Q1 exerts on Q..
A beam of protons at an accelerator creates a current of 120 mu/A. how many protons strike the target in 30.0 s
A 50-kg pole vaulter running at 14 m/s vaults over the bar. Her speed when she is above the bar is 1.7 m/s. determine her altitude as she crosses the bar
A 100-turn square wire coil of area 0.04m2 rotates about a vertical axis at 1500 rev/min, as indicated. The horizontal component of the Earth's magnetic field at the location of the loop is 2.0 × 10-5 T. compute the maximum emf induced in the coil..
What must be the value of the putty mass m so that the amplitude after the collision is one-half the original amplitude.
A certain compact disc player draws a current of 340 mA at 27.0 V. How much power is required to operate the player
A truck driver is broadcasting at a frequency of 33.103 MHz with a CB (citizen's band) radio. Determine the wavelength of the electromagnetic wave
Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
question1a plate of mass m moves horizontally with speed v on a frictionless table. a mass m is dropped vertically onto
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