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A 15000-kg vehicle travels at a constant speed of 22 m/s around a circular track that has a radius of 85 m.Determine the magnitude of the net force that acts on the vehicle
The position of an object moving in a straight line is given by x = 5t-t2+9t3, where x is in meters and t in seconds. What is the average velocity for the time interval from t = 2 s to t = 4 s
Give examples of two objects that have different positions but undergo identical displacements. Please give another or a couple of examples other than a group of choreographed stage dancers.
how much work is required to stop an electron m 9.11 multiplied by 10-31 kg which is moving with a speed of 1.72
A concrete highway curve of radius 60 m is banked at a 13.0^circ angle. What is the maximum speed with which a 1300 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.)
a metal airplane flies horizontally at 200. m/s where the Earth's magnetic fiels is vertical and is 45.0uT. If the wingspan is 25.0 meters. what emf is induced across the wings
Why does air circulate from a point with less pressure towards one with more pressure? (We have a tunnel, and on one side the wind blows faster than at the other)
A woman is 1.6 m tall and has a mass of 53 kg. She moves past anobserver with the direction of the motion parallel to her height. What does the observer measure for her height
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
A child on a freely rotating merry-go-round moves from near the center to the edge. Will the rotational velocity of the merry-go-round increase, decrease, or not change at all? Explain.
Blocks with masses of 1.0 kg, 2.0 kg, and 3.0 kg are lined up in a row on a frictionless table. How much force does the 2.0 kg block exert on the 3.0 kg block
question a 6.5-microf capacitor is connected in series with 4.2 mo resistor and this combination is connected across an
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 20.0 N force directed 25.0° below the horizontal. Determine the work done by the net force on the block
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