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Two balls, each with a mass of 0.871 kg, exert a gravitational force of 8.23 × 10?11 N on each other. How far apart are the balls? The value of the universal gravitational constant is 6.673 × 10?11 N m2/kg2.
Answer in units of m
A 676kW power station delivers power to a factory, How much less power is wasted in the transmission wires if the electricity is delivered from the power station at 54200V rather than 13700V
A beam of 6 MeV alpha particles scatters from a thin gold foil. What is the ratio of the number of alpha particles scattered to angles greater than 1° to the number scattered to angles greater than 3°
An unstable particle is at rest and suddenly breaks up into two fragments. What is the velocity of the more massive fragment
An electron has an initial, vertical velocity v0, y=.0001 c when it enters a uniform, horizontal electric field, E=0.5 x (x hat). how far will the electron be deflected
An 86lb net force is applied to a 42 Kg object at an angel. Determine the object's acceleration magnitude and direction
Compare teh parameters for H (for magnetostatics) and D (for electrostatics). In your discussion include comments on their origin, physical interpretation, connection to "free" quantities, and their usefulness in real world applications. There should..
The Dyson sphere is an hypothetical spherical structure centered around a star. Inspired by a science fiction story, What is the net gravitational force Fin on a unit mass located on the inner surface of the Dyson sphere described in Part A
Due to concerns about the salt water content in the estuary, the discharge in the channel needs to be varied to mimic tidal effects. This means that for 12 hours a day, the channel needs to carry a flow of 8m3.s1, and for the other 12 hours the fl..
What is the wavelength of the waves emitted by source? What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling straight toward the ship at 4.95 ? Assume that the ship is at rest in the..
An object falling under the pull of gravity experiences a frictional force of air resistance. find the terminal speed that the object reaches while falling
A spaceship leaves Earth traveling 0.70c. A second spaceship leaves the first at a speed of 0.88c with respect to the first. Calculate the speed (including sign) of the second ship with respect to Earth
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. What is the mass of the unknown atom
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