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a blue cart (mass=0.400kg) makes an elastic collision with a red cart (mass=0.750kg). The blue cart is initially moving at 1.40 m/s to the right before the collision, and the red cart is intially at rest. What are the final velocities of the blue and red carts (magnitude and direction)?. How much kinetic energy is lost in the collision?
A 650 kg weather balloon is designed to lift a 4600 kg package. What volume should the balloon have after being inflated with helium 0 degrees Celsius and 1 atm pressure to lift the total load.
An 8m, 200 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and ladder makes a 50.0° angle with the ground. How far up the ladder can an 800 N person climb before the ladde..
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
A disoriented physics professor drives a distance 3.25 km North, then a distance 2.60 km West, and then a distance 1.70 km South, Find the magnitude of the resultant displacement
Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. They are separated by a distance of 2.66 cm. (a) What is the magnitude of the force that each sphere experiences?
what is the maximum speed the ball can have. imagine there are no other forces acting on the particle.
suppose that the engineer is at x = 0 when, at t = 0, he first spots the locomotive. Sketch x(t) curves for the locomotive and high-speed train for the cases in which a collision is just avoided and is not quite avoided. Do this on paper. Your ins..
how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed).
A point charge of +6.3? C is located 0.31 m from a second point charge of -4.8? C. What is the absolute magnitude of the force on each charge?
An aircraft weighing 991 N is accelerated at 11 m/s2 for 13 seconds, at which time the aircraft launches. How much work was done on the aircraft
It leaves the track horizontally, flies through the air, and subsequently strikes the ground. Elucidate the speed v of the block when it leaves the track?
A charge of -0.62 m/C with an unknown mass hangs vertically from a string. A uniform electric field, which runs parallel to the ground (in the + x direction) is then turned on.
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