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Find the transformation matrix R that describes a rotation of 90 degrees about an axis from the origin through the point (1,1,0). The rotation is clockwise as you look down the axis toward the origin.
A person exerts 200 J of work onto a 50 N crate while moving it 2 m. If the crate also undergoes 10 N of friction, the net energy for the crate is what
An electron is accelerated from rest through a potential difference of 70V. What is the de Broglie wavelength of the electron
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. At what rate will this refrigerator deliver heat to the room in which it..
The width of the contact of each wire with your skin is 1.10 cm and the thickness of the conducting layer of your skin is 0.023 mm, calculate the resistivity of your skin
A 0.21-kg coffee mug is made from a material that has a specific heat capacity of 900 J/(kg · C°) and contains 0.36 kg of water. determine the minimum power rating of this heater
A fellow astronaut passes by you in a spacecraft traveling at a high speed. The astronaut tells you that his craft is 20.0 m long and that the identical craft you are sitting in is 19.0 m long. According to your observations,
An electric field is established in a nonuniform rod. A voltmeter is used to measure the potential difference between the left end of the rod and a point a distance x from the left end. The process is repeated, and it is found that the data are descr..
two circular hoops with masses and radii in the ratios m2m14 and r2r14 rotate with angular speeds in the ratio ?2?12.
A pendulum consists of a compact 0.30 kg bob attached to a string of length 1.90 m. A block of mass m rests on a horizontal frictionless surface. The pendulum is released from rest at an angle of 53° with the vertical.
A string 120 cm long with a linear mass density 10^-2 kg/m is stretched to a tension of 36 N. The string is attached between two walls and when plucked forms a standing wave with 3 antinodes. Find the frequency of vibration. A standing wave pattern c..
A 2.0-kg block is attached to a spring with a spring constant of 24N/m. If the spring is stretched 10 cm from its equilibrium position and released from rest, the maxium velocity attained by the mass is?
Derive Lagrange's equation of motion for a uniform thin dizk that rolls without slipping on a horizontal plane under the influence of a horizontal force applied at its center. Determine the generalized force.
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