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1: The equation of motion of a particle in vertical SHM is given by y = (20 cm) sin[(0.25 rad/s) t]. What are the particle's (a) displacement, (b) velocity, and (c) acceleration at t = 2.0 s? Also, what is (d) the period of oscillation, and (e) the frequency?
2: Find the first four harmonics for a string that is 1.0 m long, has a linear mass density of 5.0×10-2 kg/m and is under a tension of 80 N. Find the corresponding wavelengths
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 x 10^-6 C, Find q1 and q2
At 12 breaths/min, on a dry day when the inhaled air has almost no water content, what is the body's rate of energy loss (in J/s) due to exhaled water
A body of mass 5.0 kg is suspended by a spring, which stretches 10 cm when the mass is attached. What is its position as a function of time
A 500g particle has velocity vx = -5.0m/s at t = -2s. Force Fx = (4-t^2)N is exerted on the particle between t = -2s and t = 2s. What is the particle's velocity at t = 2s
while driving on the freeway at 110 kmh you pass a truck whose total length you estimate at 25 m a- .if it takes you
a charge of -11.1 micro-coulombs is placed at the origin of a coordinate system. another charge of -12.1 micro-coulombs
Two charged bodies exert a force of 0.245N on each other. If they are moved so that they are one-fifth as far apart, what force is exerted?
A child is moving at constant velocity carries a 2N ice cream cone 1m across a level surface. WHat is the net work done on the ice cream cone
You're driving down the highway late one night at 18 when a deer steps onto the road 36 in front of you. The reaction time before stepping on the brakes is 0.50, and the maximum deceleration of your car is 12.
A rifle of 8lb fires a bullet weighing 0.8oz which leaves the rifle with a muzzle velocity of 2000 ft/s. What is the recoil velocity of the rifle?
Consider the following fission reaction (1n)+235U --> 90Kr + 142Ba +4(1n) +6 \(\gamma\) where 90Kr and 142Ba are the initial fission fragments. What is the total energy eventually emitted
q1. a solid cylindrical disk has a radius of 0.14 m. it is mounted to an axle that is perpendicular to the circular end
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