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A 2000kg tractor is pulling a trailer filled with corn down the road. The trailer has a single axle and is roughly 2m wide and 4m long. The trailer axle suddenly snaps and the wheels fall off the trailer. You notice that as the tractor drags the trailer, the tractor wheels are on the verge of starting to slip. If you estimate the coefficient of friction between the tractor and the road is 0.85 and the kinetic coefficients of friction between the trailer and road is 0.4. How much mass does the trailer have?
the volume of a rectangular prism is given by the formula v lwh. what are the general dimensions of the prism if the
A steel ball by mass 40.0 g is dropped from a height of 3.20 m onto a horizontal steel slab. The ball rebounds to a height of 1.30 m. Compute the impulse delivered to the ball through impact.
When it is burned, 1 gallon of gasoline produces 1.30×108 of energy. A 1300 car accelerates from rest to 36.0 in 10.0. How many gallons of gasoline does the car use during its acceleration
A cherry tree 4 centimeter high is located 33 centimeter away from a concave spherical mirror of radius 15 centimeter curvature. Define the image completely and draw the ray diagram
During a particular thunderstorm, the electric potential between acloud and the ground is Vcloud -Vground = 2.2 x 108 V, with thecloud being at the higher potential. What is the change in anelectron's potential energy when the electron moves from th..
An astronaut is tethered by a strong cable to a spacecraft. The astronaut and her spacesuit have a total mass of 104 , while the mass of the cable is negligible. What force does the cable exert on the astronaut
A venturi is constructed of a 9.0 cm diameter pipe with a 2.0 cm diameter throat. What is the pressure in the throat
What is the potential difference between the center of the disk and the edge? (Use the following as necessary: R, B, ?.) [Hint: Think of the disk as a large number of thin wedge-shaped rods. The center of such a rod is at rest, and the outer edge mov..
A soccer player kicks a ball horizontally off a 40.0 m cliff into a pool of water. what was the initial speed given to the rock
The escape velocity of a bullet from the surface of planet Y is 1951 m/s. Calculate the escape velocity from the surface of planet X
What is the sufficient condition for a vector field to be conservative? What is a conservative vector field? What are Gaussian Surfaces and why are they important?
The position of a mass oscillating on a spring is given by x=(4.5cm)cos[2?t/(0.63s)]. What is the period of this motion? What is the first time the mass is at the position x=0?
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