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To investigate the structure of extremely small objects, such as viruses, the wavelength of the probing wave should be about one-tenth the size of the object for sharp images. But as the wavelength gets shorter, the energy of a photon of light gets greater and could damage or destroy the object being studied. One alternative is to use electron matter waves instead of light. Viruses vary considerably in size, but 50.0nm is not unusual. Suppose you want to study such a virus, using a wave of wavelength 5.15nm.
Part A If you use light of this wavelength, what would be the energy (in eV) of a single photon?
Part B If you use an electron of this wavelength, what would be its kinetic energy (in eV)?
A cannon ball of mass 10 kg is launched at its melting point with an initial velocity of 100 m/s. If all of its kinetic energy is converted to heat energy, causing the cannon ball to completely melt but not increase in temperature, what is the lat..
A circular loop of wire with areal A lies in the xy-plane. As viewed along the z-axis looking in the -z direction toward the origin, Determine the vector magnet moment of the current loop
suppose that the cross section of the hose opening is circular with a radius of 1.5 centimeters.
A 8 kg box slides d = 4.2m down the frictionless ramp, after that collides with a spring whose spring constant is 250 N/m. angle is 30 degrees.
A flight attendant pulls her 69N flight bag a distance of 246m along a level airport floor at a constant velocity. The force she exerts is 37N at an angle of 58° above the horizontal. Find the coefficient of kinetic friction between flight bag and..
A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction, What is the change in kinetic energy of the car-truck system in the collision
The ball is pulled to one side and released to swing as a pendulum, reaching a speed of 5.8 m/s as it passes through the lowest point. Illustrate what is the tension in the rope at that point?
How much work did the movers do (horizontally) pushing a 190-{rm kg} crate 11.2 m across a rough floor without acceleration, if effective coefficient of friction was 0.60.
Explain how can a contribution statement be used to improve planning in a financial institution like a bank?
A 1360 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from the far end of the beam.
How much energy was added to accomplish the transformation. What force must be exerted on the smaller piston to support the load.
In bouncing off a racket, a 50 g tennis ball had its velocity changed from 15 m/s in the forward direction to 20 m/s, how long was the ball in contact with the racket
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