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Suppose a block with a mass of 3.00 x 10^5 kg is being lifted by a crane. The boom of the crane makes an angle of 45 degrees with the back round. If the axis of rotation is the lower end of the boom, the torque produced by the block has a magnitude of 3.20 x 10^7 NxM. Treat the boom's mass as negligible, and calculate the length of the boom.
A 70kg hiker climbs to the second base camp on Nanga Parbat in Pakistan, at an altitude of 3900m, starting from the first base camp at 2200m. The climb is made in 4.7hr. Calclate the following A)the work done against gravity B) the average power outp..
A proton moves at a speed of 1100 m/s in a direction perpendicular to a magnetic field with a magnitude of 0.80 T
In an aluminum pot, 0.15 kg of water at 100 degrees c boils away in four minutes. find the temperature at the aluminum-steel interface
The elementary particle called a muon is unstable and decays after 2.20 ?s, What lifetime do you observe for the muon
A 200-O resister, a 40.0-mH inductor and a 2.00-uF capacitor are connected in series with a 12--V rms source at 1000 Hz. What is the phase angle of this circuit
This is accomplished using two small rockets, each with 150-N thrust, that are mounted on the rim of the station.
What is the wavelength of EM radiation that ejects 2.00-eV electrons from calcium metal, given that the binding energy is 2.71 eV
A railroad car of mass 3.3 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
A particle (mass = 0.40 kg) moves in one dimension (x) and the potential energy is V(x) = (?1/2) q x2 with q = 7.35 J/m2. The initial conditions at t = 0 are velocity = 0 and position x0 = 2.9 m.
A potter's wheel (a solid, uniform disk) of mass 6.0kg and radius 25cm spins about its central axis with an angular speed of the wheel is 15rpm. Find the new angular speed of the system
A small glass bead has been charged to +30.0nC. What is the charge on the ball bearing
The velocity of the car at the end of the fifteen-second period is +20.6 m/s. The ratio of the average acceleration values is a1/a2 = 1.50. Find out the velocity of the car at the end of the initial ten-second interval.
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