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A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0 fm.
If the proton is fired at a speed of 3.0×107m/s , what is its closest approach to the surface of the nucleus? Assume the nucleus remains at rest.
At what speed does the speed of the ball change relative to the cab floor (sign and magnitude)?
How much charge passes during the starter motor
The cable pulls horizontally on the box, and a 50.30 bag of gravel rests on top of the box. The coefficients of friction between the box and roof are shown. The system is not moving. Find out the friction force on the bag of gravel.
The distance between two telephone poles is 55.55 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sags 0.165 m. illustrate a free-body diagram of the bird.
In 1911, Ernest Rutherford discovered the nucleus of the atom by observing the scattering of helium nuclei from gold nuclei. If a helium nucleus with a mass of 6.68 10-27 kg.
What are angles of refraction
Charge q1 = 5.47*10^-8 is placed at the origin. Charges q2 =-1.45*10^-8 C and q3 = 1.95*10^-8 C, Determine the direction of the net electrostatic force on charge q3
What torque must the fireman exert on the hose? That is, what is the rate of change of angular momentum of water.
imagine that you have a 510 , a 860 , and a 1.1 resistor. What is the maximum resistance you can obtain by combining these.
What is the potential energy of this group of charges. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the acceleration of crate.
An antelope moving with constant acceleration covers the distance 77 m between two points in time 7.4 s. Its speed as it passes the second point is 15.5 m/s. What is its speed at first point.
An astronaut on the Mars attaches a small brass ball to a 1.00- length of string and makes a simple pendulum. She times 13 complete swings in a time of 35.4 seconds. From this measurement she calculates the acceleration due to gravity on the Mars.
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