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In order to determine the mass of a molecule, first an electron is removed from the molecule. The resulting ion is accelerated from rest by an electric potential difference 2.7 104 V and then enters perpendicularly a uniform magnetic field whose magnitude is 0.89 T. Its trajectory in the magnetic field is measured to be a circle of radius 0.15 m.
(a) What is the magnitude of the centripetal force exerted on the ion?
(b) What is the speed of the ion?
(c) Find the mass of the ion.
The angular position of a pendulum is represented by the equation ? = 0.0310 cos ?t, Determine the period and length of the pendulum
Billy Dee notes that her favorite record rotates at 34 rev/min. At what speed does the point on the record touching the stylus (needle) move when the stylus (needle) is 5.9 cm from the center?
Vector has a magnitude of 7.20 units and makes an angle of 39.5° counter-clockwise from positive x-axis. Vector has a magnitude of 8.00 units and is directed along the negative x-axis.
The movement of the water because of the tides will give kinetic energy to the turbine blades, causing them to spin. In the calculations that follow ignore any frictional drag because of the seawater.
at what distances from the speaker do you hear a minimum sound intensity.
1.8 kilograms of water are changed, from ice at 0ËšC into liquid water at 0ËšC determine the change in mass of the water
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun
A 5.00*10^-4 C charged mass (1.00g) is thrown upwards at a speed of 20.0 m/s and it is observed that it has gone up a distance of 15m it is moving at only 10.0 m/s, what is the electric potential at 15 m up
A television set connected to a 121 V outlet consumes 88 W of power. How long does it take for 10 million electrons to pass through the television.
A 7.11-kg box is sliding across the horizontal floor of an elevator. find the kinetic frictional force that acts on the box
Two wires have the same length and the same resistance. One is made from aluminum and the other from copper. Obtain the ratio of the cross-sectional areas
The temperature near the top of Saturn's cloud layer is about 110K. The temperature at the top of the earth's troposphere, Calculate the rms speed of hydrogen (H2) molecules in both of these environments
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