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A0.430kg pendulum bob passes through the lowest part of its path at a speed of3.80m/s.
(a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long?
N
(b) When the pendulum reaches its highest point, what angle does the cable make with the vertical?
°
(c) What is the tension in the pendulum cable when the pendulum reaches its highest point?
The label on a 12.0-V truck battery states that it is rated at 181.0 A·h (ampere-hours). Treat the battery as ideal. How much electric energy can the battery supply
Consider a circuit. The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2?
If one of the crystal faces is matted (flat or reflecting) draw a picture and show how the x-rays travel, reflect and diffract on the first 2 layers of the atoms. Indicate the position of the detector in relation to the source and the crystal.
A steel cable with a total length of 27.7 m and total mass of 91 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceleration. What are your reaction time
A fully loaded, slow-moving freight elevator has a cab with a total mass of 1100 kg, which is required to travel upward 49 m in 3.9 min, starting and ending at rest. The elevator's counterweight has a mass of only 830 kg, so the elevator motor must h..
A photon with a wavelength of 5.90e-11 m is scattered by a loosely bound electron in a metallic target and exits at an angle of 135° from its original direction
The reflected sound is afterwards mixed with the transmitted sound, and 85 beats per second are detected. The speed of sound in body tissue is 1520m/s. compute the speed of the fetal heart wall at the instant this measurement is made.
A solenoid 24.0cm long and with a cross-sectional area of 0.600cm^2 contains 420 turns of wire and carries a current of 75.0 A. Calculate the magnetic field in the solenoid
Draw a free body diagram for each block in the system. Find the acceleration of the system and the tensions in the ropes. Coefficient of kinetic friction of 0.3 exists between the two blocks with no other frictional surfaces.
twin brothers each of mass 50 kg sit in a symmetric canoe of mass 40 kg. each boy sits 1.5m from the center of the canoe as they toss a basketball(mass= .60kg) back and forth. how much does the center of canoe move as the ball moves from one brothe..
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and her takeoff point is 1.50 m above the pool. What is her velocity when her feet hit the water
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