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A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 42.0 m/s. Then the truck travels for 56.0 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00 s.
(a) How long is the truck in motion?(b) What is the average velocity of the truck for the motion described?
If two parallel conducting plates were separated by .60 cm, and the potential difference between the plates is 90V, the magnitude of the electric vector midway between the plates would be?
Determine the magnitude and direction of impulse delivered to the ball by the floor.
question a 25g bullet pierces a sand bag 27cm thick. if the initial bullet velocity was 64 ms and it emerged from the
assume with the tight-binding framework that we need to consider only 1 wannier orbital from each site. the energy
The gauge pressure in both tires of a bicycle is 790 kPa. what is the area of contact of each tire with the ground
A charged particle A exerts a force of 2.47 μN to the right on charged particleB when the particles are 13.5 mmapart. Particle B moves straight away from A tomake the distance between them 18.6 mm. What vector force does particle B then exert on A?
A spherical balloon has a radius of 7.35 m and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 930 kg? Neglect the buoyant force on the cargo volume itself?
If the iron core of a collapsing star initially spins with a rotational frequency of F = 6.3 s^-1 , what is the rotational frequency of the iron core
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
A room with a pine ceiling measured 10 m x 6 m x 2 cm thick. On a cold day the temperature on inside of the ceiling is T1 = 24 oC and in the attic T2 = 7 oC, find the interface temperature for the pine and insulation
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.49 m above the bottom of the chute and with an initial speed of 1.55 m/s. How far from the bottom of the chute does the toy zebra come to rest
Two 3.0 ?C charges lie on the x-axis, one at the origin and the other at 25 m. What is the potential at this third point relative to infinity
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