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a) What is the total charge of the neptunium nucleus? (The neutral neptunium atom has 93 electrons.) = 1.49×10-17 C b) What is the magnitude of its electric field at a distance of 5.29×10-10 m from the nucleus? =4.78×1011 N/C c) What is the magnitude of the force on an electron at that distance? d) What would the magnitude of the force be if the distance of the electron from the nucleus were quadrupled?
After a day of testing race cars, you decide to take your own 1580kg car onto the test track. While moving down the track at 10.0 m/s, you uniformly accelerate to 28m/s in 10 s. What is the average net force that you have applied to the car throug..
A spring with spring constant 34N/m is attached to the ceiling, and a 4.6-cm-diameter, 1.4kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m. What is the speed of the lightest star
A ball is thrown against a smooth wall. The bass has mass 6.0g and strikes the wall in the perpendicular direction with a speed of 12 m/s. what is magnitude of the impulse delivered by the wall
Your new super power Heat-O-Matic insulated blender has both a violent chopping blade and a heating element, what amount of heat flowed into the water from the heating element
A 5 kg block, measuring 10 cm per side, is held 50% submerged in water by a Helium balloon. If the density of Air is 1.18g/L, what is the diameter of the balloon
During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.70 108 V, when the electron moves from the ground to the cloud
A 2100 kg truck traveling north at 41 km/h turns east and accelerates to 54 km/h, What is the change in the truck's kinetic energy
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
Zach, whose mass is 64kg , is in an elevator descending at 10m/s. What is Zach's apparent weight while the elevator is braking
The frequncy doubled output of a laser has a wavelength of 532nm. If each pulse of light has a total energy of 0.550J and the repetition rate of the laser is 30Hz, how many photons does the laser emit at 532 nm in 3 minutes
At what temperature is the diameter of the hole equal.
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