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The position of a 9x10-31kg particle is given by: x(t)=3t2x+4ty where x and y are unit vectors. What are the particleâ€TMs velocity and acceleration as a function of time? You can leave them in component form. What is the average velocity between t=1s and t=3s? What is the force acting on the particle?
A parallel plate capacitor has square plates with sides of length 10 cm. The distance between the plates is 4 mm. What is the amount of charge on each plate
A playground merry-go-round has radius 2.50mand moment of inertia 2800kg?m2 about a vertical axle through its center, What is the average power supplied by the child
A 30.0-g goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50*10^-2m and period 1.50s. What is the maximum acceleration of the finch
Your are sitting in your car, which is standing at the side of the road with the engine idling. After what distance will you catch up with your classmate
What is the maximum distance we can shoot a dart, from ground level, provided our toy dart gun gives a maximum initial velocity of 2.78 m/s and air resistance is negligible
An elevator is initially moving upward at a speed of 11.18 m/s. The elevator experiences the constant downward acceleration of magnitude 4.44 m/s2 for 2.87 s.
A person whose eyes are 1.75m above the floor stands in front of the plane mirror. The top of her head is 0.11.
A muon is a lepton that is a higher-mass (rest mass 105 MeV/c^2) sibling to the electron. How many muons survive to reach the surface
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
find the period of this oscillation.
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
Two hikers begin on opposite sides of a circular lake and walk around the lake in the same direction. How far does the faster hiker walk before catching up to the slower one
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