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In a mass spectrometer, a beam of protons enters a magnetic field. Several protons make exactly a one-quarter circular arc of radius 0.50m. If the field is forever perpendicular to the proton's velocity, a) what is the field's magnitude if exiting protons have a kinetic energy of 10 keV? b) How long does it take the proton to complete the quarter circle? c) Discover the net force (magnitude) on a proton while it is in the field.
Calculate the edge length of a cube that has the same volume as a sphere of radius 4.0 cm. How much greater is the surface area of the cube than that of the sphere
An inclined plane has a height of 0.383 and is 120 cm long. What is the KE energy at the end of the ramp
A plane is flying at an altitude of 10000 metres, and the pitot tube measures a gauge pressure of 10kPa. What is the airspeed of the plane
A 600-m tall tower casts a 600-m long shadow over a level ground. At what angle is the sun elevated above the horizon
A 2.0 kg mass moves with a speed of 5.0 m/s. It collideshead-on with a 3.0 kg mass at rest. If the collisionis perfectly inelastic, what is the speed of the masses after the collision
A piece of charcoal used for cooking is found at the remains of anancient campsite. Find the age of the charcoal
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.33 kg, and the wedge has a mass of 5.11 kg. The ball is moving a speed of v = 4.47 m/s when it strikes the wedge, which is initially at rest. a) Ass..
The distance to a star is approximately 7.60 1018 m. If this star were to burn out today, in how many years would we see it disappear? How long does it take for sunlight to reach Jupiter?
A Klingon spacecraft moves away from Earth at a speed of -.8c. With what speed is the Klingon craft moving as measured by the crew of the Enterprise
A metal ball of mass 0.22 kg with initial temperature of 95ºC is dropped into a container of 0.50 kg of water at 20ºC. what is the specific heat of the metal
A 4.0 capacitor is connected in series to a resistor. If an emf source is connected in series to this arrangement, what is the resistance of the circuit
two plate capacitor with a plate area 0.1 m2 and distance between the plates of 1 mm is charged with a potential of
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