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An empty 1150 kilogram van has its Center of Mass (CM) 2.30 meter behind the front of the car. Determine how far from the front of the van will the CM be when two people sit in the front seat 2.80 meter from the front of the car, and three people sit in the backseat 3.90 meter from the front? Suppose that each person has a mass of 70.0 kilogram.
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 200pm. What is the frequency of the photon that is emitted
a 100kg object is pulled verticaly upwards by a constant force of 4000 N for a distance of 20 m. what is the work done by the applied force on the object
A laser beam passes during a slit of width1.0 cm and is pointed at the Moon, which is approximately380,000 {\rm km} from the Earth. Suppose the laser emits waves of wavelength 630 {\rm nm} (the red light of a He-Ne laser).
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 25 m.
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.8 s after being hit, How high is the fence
In a region of space where the electric field is constant everywhere, as it is inside a parallel plate capacitor, is the potential constant everywhere? Explain
a horizontal rod 0.200 m long carries a current through a uniform horizontal magnetic field of magnitude 0.067 t that
a meteoroid is speeding through the atmosphere traveling east at 23.8 kms while descending at 19.9 kms. what is its
an airport has runways only 161 m long. a small plane must reach a ground speed of 40 ms before it can become airborne.
a 66.0 kg diver steps off a 10.0 m tower and drops straight down into the water. if he comes to rest 5.00 m beneath the
A 132- (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1930. Find the acceleration of the rocket
A hypodermic syringe is attached to a needle that has an internal radius of 0.301 mm and a length of 3.01 cm. What force must be applied to the plunger
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