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A high-frequency photon is scattered off of an electron and experiences a change of wavelength of 8.0×10-4 .At what angle must a detector be placed to detect the scattered photon (relative to
A 10kg runaway grocery cart runs into a spring with spring constant 230 N/m and compresses it by 65 cm. What was the speed of the cart just before it hit the spring?
A long, straight wire carries a current of 42 A. The magnetic field produced by this current at a certain point is 6.0 10-5 T. How far is the point from the wire?
A 10 runaway grocery cart runs into a spring with spring constant 230 and compresses it by 65. What was the speed of the cart right before it hit the spring?
Assuming that the cord does not slip on the pulley, find (a) the acceleration of the two masses and (b) the tensions T1 and T2.
The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.900 m/s2. Find the t
A physics book slides off a horizontal table top with a speed of 1.45 . It strikes the floor after a time of 0.440 . Ignore air resistance.Find the horizontal component of the book's velocity just b
Consider a conical pendulum with an 20 kg mass on a 10 m wire making an angle of 3° with the vertical. The tension in the wire is 199 N. Determine the constant speed of the mass to maintain thi
A person with perfect pitch sits on a bus bench listening to the 455hz horn of an approaching car.If the person detects a frequency of 475hz , how fast is the car moving?
A beam of particles is directed at a 0.014-kg tumor. There are 2.3 x 1010 particles per second reaching the tumor, and the energy of each particle is 4.0 MeV. The RBE for the radiation is 14. Find
Assume there is no friction between the treasure chest and the ground. What is the net force of the treasure chest?
How much work is done by a force = (3x N) +(5 N), with x in meters, that moves a particle from a position i = (3 m) +(4 m), to a position f = -(5 m) -(3 m).
The coefficient of static friction between hard rubber and normal street pavement is about 0.8. On how steep a hill (maximum angle) can you leave a car parked? Assume the car weighs 4200 lbs.
One kilogram of dry air at STP conditions is exposed to 1.00 R of X-rays. One roentgen is defined by Equation 32.1 in Section 32.1. An equivalent definition can be based on the fact that an exposure
If the internal energy of an ideal gas increases by 150 J at the same time that the gas expands and does 240 J of work on its surroundings, how much heat has been added to the gas.
What is the difference between the voltage current characteristics for intrinsic and extrinsic semiconductor in both forward as well as reverse direction?
How much work must be done to bring 3 electrons from a great distance apart to within 2.55E-10 m from one another (at the corners of an equilateral triangle)?
It is 150 cm from your eyes to your toes. You're standing 200 cm in front of a tall mirror. How far is it from your eyes to the image of your toes?
You look into a shaving mirror and the upright image of your face is 40.0 cm away from you. The image has a magnification of 1.50. (a) How far away are you from the mirror? (b) What is the radius o
A 390 kg mass is brought close to a second mass of 144 kg on a frictional surface with coefficient of friction 1.1. At what distance will the second mass begin to slide toward the ?rst mass? value
A 35 kg box is being pushed up a ramp with a force of 115 N. The length of the ramp is 5.00m. How much work is being done on the box?
A mass-spring system oscillates with an amplitude of 5.80 cm. If the spring constant is 245 N/m and the mass is 538 g, determine the mechanical energy of the system.
For a process, the enthalpy change and the entropy change of the system is 173000 J and its entropy change is 210 J/K. Calculate the free energy change of the system at 298 K.
An object 2.00 cm tall is placed 14.0 cm to the left of the vertex of a concave spherical mirror whose radius of curvature is 24.0 cm. What is the height h_i of the image?
A 1200-N uniform boom is supported by a cable as in the figure. The boom is pivoted at the bottom, and a 2 000-N object hangs from its top. Find the tension in the cable and the components of the r