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Jack was exposed to fast neutrons; he received a radiation dose of 280rem on part of his hand, affecting 30.0grams of tissue. The relative biological effectiveness (RBE) of these neutrons is 8.00.
Part A How much radiation did Jack receive?
Part B What was the total energy of the radiation Jack received?
Part C Suppose Jill received the same rad dosage, but from beta rays with an RBE of 1.10 instead of from neutrons. What is the value of the equivalent dose she received?
The length of a moving spaceship is 25.6 m according to an astronaut on the spaceship. what is the speed of the spaceship
Suppose a train engineer is climbing a vertical ladder at a speed of 0.2m/s while the train is slowly coasting east at 0.70 m/s. Find out the vector of the engineer relative to the ground in rectangular notation.
The bullet remains in the block, and after the impact the block lands d = 1.90 m from the bottom of the table. How much time does it take the block to reach the ground once it flies off the edge of the table.
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A discus thrower changes his angular velocity from 280°/s to 400°/s (at the time of release) in 1.5 sec. find the average angular and linear acceleration
Compute the semi major axis of the star orbit
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What are the max and min values of the instantaneous power?
A more realistic car would cause wheels to spin in a manner that would result in the ground pushing it forward with a steady force.
Two 53 {rm g} blocks are held 30 {rm cm} above a table. One of them is just touching a 50-long spring. The blocks are released at the same time. The block on the left hits the table at accurately the same instant as the block on the right first comes..
To get the top spinning, its string is pulled with a tension of 0.30. Explain how long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
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