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A drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first springs, whereas a 4.28 -N block hangs from the second spring. A block of unknown weight hangs from the third spring. From the drawing, determine
A) the spring constang (in N/m) and
B) the weight of the block hanging from the third spring.
A charged oil droplet falls 5.0 mm in 20.0 s at terminal speed in the absence of an electric field. What are the mass and radius of the drop
If the height of the candies in the container increases at the rate of 0.29cm/s, at what rate (kilograms per minute) does the mass of the candies in container increase.
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
One average force F1 has a magnitude that is three times as large as that of another force F2. Both forces produce the similar impulse. The average force F1 acts for a time interval of 1.77ms. for what time interval does the average force F2 act.
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
what is the speed of the proton in the beam.define the spread in these values.
(a) In what direction are the electrons deflected? toward the negative plate toward the positive plate (b) By how much are the electrons deflected after passing through these plates?
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=59600 N. What is the magnitude of the lift force
How many times hotter than the Sun's surface is the surface of a star the same size, but that gives off twice the Sun's energy per second (that is, is twice as luminous)?
What is the centripetal acceleration of a helicopter flying in a horizontal circle of a diameter 510 m at a speed of 120 m/s
Explain in your own words the meaning of acute and chronic exposure, deterministic and stochastic effects from radiation. Give examples
A 2.00-cm-diameter parallel-plate capacitor with a spacing of 0.600mm is charged to 300V, What is the total energy stored in the electric field
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