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A 700kg car stopped at an intersection is rear-ended by a 1800kg truck moving with a speed of 16.0 m/s, If the car was in neutral and its brakes were off, so that the collision is approximately elastic,
find the final speed of the truck in m/s
Find the final speed of the car in m/s.
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
A 1500 kg car is approaching the intersection at 11 m/s. He is 40 m away from the intersection. Find the minimum acceleration needed for the car to come to rest
cylindrical tube oriented vertically on earths surface closed at the bottom and open at the top height 100 m cross
A horizontal force of magnitude 100 N begins to pull directly on block. In unit-vector notation, what are the resulting accelerations of (a) block and (b) slab.
Two lenses, separated by a distance of 22.1 cm, are used in combination. The first lens has a focal length of +26.0 cm; the second has a focal length of -15.0 cm. What is the final image distances relative to the second lens
If the perceived frequency becomes constant at 440 Hz, what is terminal speed at the paratrooper? Take the speed sound in air to be 343 m/s and assume the paratrooper always remains below the helicopter.
A fire truck attaches two fire hoses to a hydrant to fight a fire. each hose has a diameter of 20 cm. How many kilograms of water are put on the fire in 30 minutes
The outside mirror on the passenger side of a car is convex and has a focal length of -8.5 m. Find the image distance of the truck
A projectile launcher is set up in lab at a height of 1.05 meters above the lab floor. What is the horizontal distance which the projectile travels before it hits the ground
74 L of an ideal monatomic gas is at an absolute pressure of 3 atm when the temperature is 25 C. How many moles of gas are there
If 1800J of heat are added to a 190-g object, its temperature increases by 10o C. What is the heat capacity of this object
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. find the magnitude of the electric field within the cell membrane
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