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A car of mass 1572 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what is the initial speed of the car?
Consider a 619-N weight is being held by two cables. The left hand cable has a tension of T2 and makes an angle of ?2 with the ceiling. What is the tension of the left hand cable
A 1408.0 g mass is on a horizontal surface with ?k = 0.39, and is in contact with a massless spring with a force constant of 526.0 N/m which is compressed. Calculate the distance the spring was compressed
A copper wire has a 25 m-ohmic resistance at 20 degrees C. When the wire is carrying a current, What is the change in the wire's resistance
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
What is this force in Newtons.
An astronaut constructs a pendulum with a length of 1 meter on a new planet. If the period is 4 second, what is the acceleration due to gravity
A person with a weight of 237 lb stands on two feet with their weight equally distributed between the two shoes, What is the pressure on each shoe independently
A 300 DC power supply has fully charged a 15 mF capacitor. The charged capacitor is connected to a 20 mH inductor. find the magnetic energy in the inductor
A satellite moves in a circular orbit around the Earth at a speed of 6.1 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 10^24 kg.
An AC generator has 70 rectangular loops on its armature and total resistance of 9 ohms. Each loop is 12 cm long and 7 cm wide. what will be the maximum output voltage of this generator
A 6 kg bowling ball with a radius of 12 cm rolls in a straight line past you at a speed of 3 m/s. What are the components of the ball's total angular momentum about your position
three charges shown in figure from an equilateral trangle with 4.9 cm long sides what is the electrical potentialat the point indicted with the dot
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