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(a) Find the speed an alpha particle requires to come within 4.0x10-14 m of a uranium nucleus.
(b) Find the energy of the alpha particle in MeV.
Three stars, each with the mass and radius of our sun, form the equilateral triangle 5.0×109 {rm m} on a side. If all three are simultaneously released from rest, what are their speeds as they crash together in the center.
A small steel sphere of mass 0.40 kg is attached by a 0.50 m long cord to a swivel pin set into the surface of a friction-less table top. compute the tension in the cord
The space shuttle releases a satellite into a circular orbit 700 km above the Earth, How fast must the shuttle be moving (relative to Earth's center) when the release occurs
The clarinet is well modeled as a cylindrical pipe that is open at one end and closed at the other. Find the wavelength and frequency of the third normal mode of vibration
Some people think that they can stop themselves rushing forward by putting their hands on the dashboard. Find out the mass of the object that has a weight equal to force you just calculated.
A small object with a mass of one gram carries a charge of 1µC and is suspended by a thread between the vertical plates of a parallel-plate capacitor submitted to a voltage of 1 kilo volts
Find out the angle that the total acceleration of the car. the car at the moment the car completes the circle.
A 4.20kg steel ball strikes a wall with a speed of 7 m/s at an angle of 60° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.20 s, what is the average force exerted by the wall on bal..
The work done by an external force to move a -7.75 µC charge from point a to point b is 25.0 ? 10-4 J. What is the magnitude of the potential difference between a and b
A lead ball, with an initial temperature of 25oC, is released from a height of 101.0 m. It does not bounce when it hits a hard surface. Presume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball ..
A policeman uses a radar gun to detect the speed of drivers in a 65 mph (29.06 m/s) zone, What is the driver's speed, Is the driver breaking the speed limit
After a plant or animal dies the 14C content decreases with a half-life of 5730 years. what is the age (in years) of the ancient site
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