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a 1200-kg truck moving at 20m/s to the right collides with a 1000-kg car moving at 25 m/s to the left immediately after the collision, the truck is traveling at 5 m/s to the right.
a) what is the speed and direction of the car immediately after the collision?
b) how much energy is lost in the collision?
A student sits on a rotating stool holding two 3.9-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
Animals in cold climates often depend on two layers of insulation: a layer of body fat [of thermal conductivity 0.200 W/(m*K)], How thick should the air layer (contained within the fur) be so that the bear loses heat at a rate of 51.1 W
Two straight wires run parallel to each other, each carrying a current in the direction shown below. The two wires experience a force in which direction? B) What happens when one of the currents is turned off?
A swimmer heads directly across a river, swimming at 1.60 m/s relative to the water. She arrives at a point 58.0 m downstream from the point directly across river, 63 m wide. What is the speed of the river current.
At a time t = 2.60s , a point on the rim of a wheel with a radius of 0.180m has a tangential speed of 55.0m/s as the wheel slows down, Calculate the wheel's constant angular acceleration
An electron moves in a region where the magnetic field is uniform, has a magnitude of 60 mT, What is the pitch of the resulting helical path
When a person is given intravenous fluid, the bag containing the fluid is typically held about 0.9 m above the person's body. what is the pressure in the person's blood
question1a compute dissimilarity in blood pressure between the feet and top of the head for a person who is 1.65 m
A playground is on the flat roof of a city school, 6.1 m above the street below (see figure). The vertical wall of the building is h = 7.60 m high, Find the speed at which the ball was launched
Swift is a spacecraft that has a collecting area of 0.520 m2 to detect gamma-ray bursts (GRBs). find the amplitude of the magnetic field of the source
An automobile has a vertical radio antenna 1.00 m long. The automobile travels at 56.0 km/h on a horizontal road where Earth's magnetic field is 50.0 µT, Calculate the magnitude of this induced emf
A solar cell, 3.0cm square, has an output of 350mA at 0.80V when exposed to full sunlight. How many cells do you need to build the panel
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