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A pendulum with a length of L = (0.712 ± 0.002) m is set to oscillate with a small amplitude. The time of 20 periods is measured as (34.05 ± 0.13) s.
Calculate 'T' and 'ΔT'. Correctly round off the final result for 'ΔT' and accordingly round 'T'
Velocity and acceleration: consider a velocity vector given in standard unit vector form in rectangular Cartesian coordinates as: v→(t) = (3t4i^ + 7t5/2j^ + 5e2tk^)m/s -What is the acceleration at 2 seconds?
The escape speed from a distant planet is 39 km/s. If the acceleration of gravity on the planet is 14.5 m/s^2, what is the radius of the planet
A bus running along a straight street at 30m/s is slowed uniformly to stop in 5sec. Find the acceleration and the stopping distance.
Two boxes with different masses M1 = 1.4 kg and M2 = 2.3 kg are tied together on a frictionless ramp surface which makes an angle ? = 27° with the horizontal, What is the tension in the rope connecting the first box to the ramp
What is the wavelength of the 49,000-Hz radio wave used by "radio-controlled" clocks and wristwatches?
a good baseball pitcher can throw a baseball toward home plate at 83 mih with a spin of 1625 revmin. how many
for alpha particles of energy 7.68 mev scattered from a platinum foil two microns thick find a the collision diameter b
a 4.64 kg block is on a plane inclined at 18.5 degrees with respect to the horizontal. What is the normal force
q1. the temperature of the glass surface of a 30 w light bulb is 75degc when the room temperature is 10degc. estimate
While cycling at speed of 11 m/s, Lance Armstrong starts going downhill with an acceleration of magnitude 1.2 m/s2. The descent takes 10.0 s. Find the speed of the cyclist at the end of the descent
A 1500 kg weather rocket accelerates upward at 10m/s2. It explodes 2.0 s after liftoff and breaks into two fragments, one twice as massive as the other.
suppose an atom having atomic number z is ionized so that all but 1 of its z electrons are removed. predict the
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