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A 30000 kg truck traveling at 10 m/sec collides with a 1700 kg car traveling at 25 m/sec in the opposite direction. If they stick together after the collision, how fast and in what direction will they be moving?
A step down transformer produces a voltage of 5.3 V across the secondary coil when the voltage across the primary coil is 100V. What voltage appears across the primary coil
A particle with a charge of q = -5.60 nC is moving in a uniform magnetic field of B= (-1.23 T) z. Calculate the x component of the velocity of the particle
When a metal is irradiated with 410-nm photons, the stopping potential is 1.2 eV. Find the cutoff wavelength (in nm) for this metal
What is the difference between mas and weight? On earth, what is the weight of a 1 kg mass, When your textbook says that the moon "falls around the earth,
A person who is nearsighted has a far point of do = 4.8 m. Write an expression for the focal length of the glasses which will allow her to see distant objects clearly
A piston of radius r = 0.05 m has a stroke within a cylinder of S = 0.2 m. At the bottom of the stoke the cylinder fills with air at T1 = 22.4 C and a pressure of P1 = 100 kPa. What would be the length of the cylinder
A neutron moved through a 3.6 T field with a speed of 189091 m/s. The velocity of the neutron is perpendicular to the field. Find what is the magnetic force on the neutron
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Determine the speed of the wagon after the rock is thrown
Consider two masses that hang from an overhead beam. The first mass of 62.9 kg is attached to the beam using an ideal rope. Find the tension in the lower rope
an object with a charge of -5.4 microc and a mass of 0.038 kg experiences an upward electric force due to a uniform
a stone is shot from the edge of a cliff 125 m above ground level with an initial speed of 65 ms at an angle of 37
A 1680 kg car accelerates uniformly from rest to a speed of 19.2m/sin 4.22s. Find the average power delivered by the net force to the car in this time interval. Answer in units of w. Find the work done by the net force on the car during this timeinte..
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