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An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3.8 x 103 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.15 for the trailer?
The sunlight reaching the earth has a maximum electric field 810 V/m. compute the maximum magnetic field associated with it.
A car misses a turn, sinks into a shallow lake, coming to rest on its side with the door horizontal and at a depth of 9.3 m. find the force exerted on the inside of the door by the air
2000 kg elevator is accelerated uniformly from rest to 4 m/s in a time of 90s. find the change in mechanical energy of the elevator
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
A bullet with mass m = 5:21 g is moving horizontally with a speed v = 498 m/s when it strikes a block of wood with mass M = 14.8 kg (initially at rest). What was the change in kinetic energy (J) of the bullet
33g of copper pellets are removed from a 300?C oven and immediately dropped into 100mL of water, What will the new water temperature be
Water flows at 5.0;{rm L}/{rm s} through a horizontal pipe that narrows smoothly from 10 cm diameter to 5.0 cm diameter. A pressure gauge in the narrow section reads 50 kPa. What does the other pressure gauge read.
A piece of glass has a temperature of 80.6 ° C. Liquid that has a temperature of 43.0 ° C is poured over the glass, determine the specific heat capacity of the liquid
Babies recovering from surgery need to be fed milk from an open syringe through a nasogastric tube, a slender tube that passes in one nostril and down into their stomach
Illustrate energy bar graphs to solve the problem . What is amplitude of the oscillations.
q1. a sled is pushed by 12 monkeys with a constant force until it reaches a velocity of 18.9 ms. all 12 monkeys stop
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely proportional to the square of the distance between..
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