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Two tugboats pull a disabledsupertanker. Each tug exerts a constant force of 1.55 x 106 N,one 20° west of north and theother 20° east of north, as theypull the tanker 0.85 km toward thenorth. What is the total work they do on the supertanker?
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A lump of putty with a mass of 0.210 kg and a speed of 0.830 c collides head-on, What is the mass of the system after the collision
A bicycle rim has a diameter of 0.65 m and a moment of inertia, measured about its center, of 0.29kg?m2. What is the mass of the rim
The electron in a hydrogen atom orbits the proton at a radius of 0.053 nm. What is the electric field due to the proton at the position of the electron
when the voltage is adusted so that the plates are in the same position they would be in when the 50 mg mass is placed
Two forces, F1 and F2 act at a point. F1 has a magnitude of 8.80N and is directed at an angle of 62 degrees above the negative X axis in the second quadrant. What is the magnitude of the resultant force
A 5 gram bullet traveling in 20 0C air at 300 m/sstrikes a flat steel plate and stops. What is the final temperature of the lead bullet
An electromagnetic wave has an electric field amplitude of 320 V/m.
The maximum speed of a 3.7-kg mass attached to a spring is 0.67 m/s , and the maximum force exerted on the mass is 12 N. What is the amplitude of motion for this mass
When a train's velocity is 12.0m/s eastward, raindropsthat are falling vertically with respect to the earth make tracesthat are inclined 30degrees to the vertical on the windows of the train, What is the magnitude of the velocity of the raindrop
The electrons in a metal that produce electric currents behave approximately as molecules of an ideal gas. The mass of an electron is me = 9.109x10-31 kg. If the temperature of metal is 311 K, what is the root-mean-square speed of the electrons.
the magnitude of the force that a spring exerts f when it is stretched a distance x from its unstressed length is
Two charged objects experience a mutual repulsive force of 0.71 N. If the charge of one of the objects is reduced by half and the distance separating the objects is quadrupled, what is the new force? (Enter the magnitude of the force.)
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