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A 3000 kg truck is heading east at 80 mph. A 1000 kg car is heading north at 40 mph. They collide and stick togther.
Question 1: How much energy is lost in the collision?
Question 2: What is the velocity and direction of the car/truck?
Pulling a car from a ditch, To pull a car from a ditch, the driver ties one end of a rope to the car and the other to a tree 12.5 m away.
An aerosol can of whipped cream is pressurized at 440kPa when it's refrigerated at 3 C. The can warns against temperature in excess of 50 C. What is the safest pressure for the can .
In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 64 N applied to the outer edgE
A person is performing a knee extension exercise with a 100 N weight acting at the ankle. What is the torque at the knee necessary to maintain a knee joint angle of -60q relative to the right horizontal passing through the knee joint
Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this, find the average force on the truck driver from the seatbelt
State and explain magnetic dipole moment µ of a coil of number of turns N and area A carrying current i
In molecular hydrogen, H2, two hydrogen atoms are bonded covalently by sharing two electrons. Determine the electric force acting on each proton
A 2.30-gram air inflated balloon is given an excess negative charge, q1 = -3.50 × 10-8 C, by rubbing it with a blanket. How much charge, q2, does the rod have
You can launch the proton from the surface of a sphere of with charge Q and radius R, from the center of a ring of charge Q and radius R, or from the center of a disk of charge Q and radius R. Which is the best choice.
What average force is required to accelerate 7 gram pellet from rest to 125 m/s over a distance of .8 m along the barrel of a rifle.
Determine the tension in each cable if boat has a mass of 490 kg and the angle of each cable is 50 degrees from the horizontal and the boat is being momentarily held at rest. Evaluate this to the tension when the boat is raised and held at rest so th..
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. How much total work is done on the object in 4.44 seconds
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