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How much work does the electric field do in moving an alpha particle ( a bare Helium nucleus with two protons ) from a point with a potential of +97 kV to a point where it is -61 kV? Express your answer both in joules and electron volts.
A bicycle and rider with mass m rolls down a hill at constant velocity under the influence of gravity with negligible rolling resistance. The hill makes an angle of θ = 19 degrees with respect to the horizontal. The force of air resistance, ter..
A woman lies on a weightless board across two scales. Her feet are directly over the right scale. How far above her feet is her center of mass
a projectile is shot upward off a 475 m high cliff with a speed of 65m/s at an angle of 48 with respect to the horizontal. How high does the projectile rise
if the coefficient of kinetic friction between the 50-kg crate and the ground is .3 determine the distance the crate
A singly charged positive ion has a mass of 2.36 10-26kg. After being accelerated through a potential difference of238 V, Calculate the radius of the path of theion in the field
A bullet of mass 25.0 g is fired into a wooden block of mass 2.200 kg that is initially at rest. what is the speed of the bullet before it impacted the block
There is a +10 nC charge inside a cube of size 5 cm. What additional charge must be placed into the cube
a pilot can withstand ten times the acceleration due to gravity 10 gs if he is wearing a special tight-fitting g-suit
A 470-g firework is traveling straight up at 13 m/s when it explodes into two pieces. Find the speed and direction of the other piece directly after the explosion
The force exerted by the wind on the sails of a sailboat is Fsail = 480 N north. The water exerts a force of Fkeel = 190 N east. If the boat (including its crew) has a mass of 300 kg, what are the magnitude and direction of its acceleration?
You measure the length of a distant car to be subtended by an angular distance of 1.0 degrees. approximately how far away is the car
A highway curve with a radius of 400 m is banked properly for a car traveling 80 km/h. how much sideways force must the tires exert against the road if the car does not skid
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