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A singly charged ion of mass m is accelerated from rest by a potential difference ?V. It is then deflected by a uniform magnetic field (perpendicular to the ion's velocity) into a semicircle of radius R. Now a triply charged ion of mass m' is accelerated through the same potential difference and deflected by the same magnetic field into a semicircle of radius R' = 5R. What is the ratio of the masses of the ions?
m'/m =
A cart with mass 320 g moving on a frictionless linear air track at an initial speed of 1.9 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is the speed of the two-cart center of mass
You see the boy next door trying to push a crate down the sidewalk. He can barely keep it moving, and his feet occasionally slip. You start to wonder how heavy the crate is. You call to ask the boy his mass, and he replies " 48.0kg .
The wires in a household lamp cord are typically 3.0 mm apart center to center and carry equal currents in opposite directions. Is the force attractive or repulsive
A highway curve has a radius of 125 m. At what angle should the road be banked so that a car traveling at 27.4 m/s has no tendency to skid sideways on the road.Find an acceleration of box and ramp.
Four identical springs are used as part of a car's suspension system, one on each wheel. What will be the frequency at which the car will bounce
A 11.1-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 60.3-N horizontal force. find the rope\'s angle from the vertical
question1man pushing a mop across a floor causes it to undergo two displacements. first has the magnitude of 154 cm and
A 24.5 kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg*m2 and radius 2.40m. Find the angular velocity if the child moves to a final position
Block 1, of mass m_1 = 0.500 kg, is connected over an ideal (massless and frictionless) pulley to block 2, of mass m_2. Suppose that the blocks accelerate with an acceleration of magnitude a = 0.550 m/s^2 and that coefficient of kinetic friction b..
A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 30 degrees in a material with index of refraction 1.3. what is the refracted angle (in degrees) in that material
A spherical capacitor contains a charge of 3.50nC when connected to a potential difference of 220V. Calculate the radius of the inner sphere
A charge 2q is located at the origin. A charge -3q is located at x = d, y = 0, z = 0. Where is the electric field zero
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