Energy supplied to the rotational energy
A 1.2-kg 10-cm-diameter solid sphere is rotating about its diameter at 69 rev/min.
(a) What is its kinetic energy?
(b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?
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A 2.00-cm-high object is situated 18.9 cm in front of a concave mirror that has a radius of curvature of 14.4 cm. Calculate (a) the location and (b) the height of the image.
Establish their reciprocal vectors and hence express the vectors p = 3i - 2j + k, q = i + 4j, and r = -2i + j + k in terms of the base vectors a, b, and c.
Consider a group of 20 molecules with the following speeds: three have speed 1 m/s, four have 6 m/s, five have 9 m/s, and eight have 12 m/s. Determine the rms speed (in m/s) of the molecules in this group at this instant in time.
The electrons then pass through a 0.31 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience.
1) What are interference and diffraction? Under what circumstances do they occur? 2) Light from a helium-neon laser is shined on a slit of width .02 mm. Describe qualitatively the pattern of light seen on a screen 1.0 meter away.
A bat flies toward a wall, emitting a steady sound with a frequency of 24.0 . This bat hears its own sound plus the sound reflected by the wall. How fast should the bat fly, to hear a beat frequency of 180 ?
How long will the mortar shell remain in the air? How fast will the shell be traveling when it hits the ground?
A car moves with a speed v on a horizontal circular highway turn of radius is R = 100. Assume the height of the car's center of mass above the ground is h = 1 m, and the separation between its inner and outer wheels (car's width) is w = 2 m.
Light has a wavelength of 228.2 nm and a frequency of 7.575 x 1014 Hz when traveling through a certain substance. What is the refraction index of this medium? Use 2.998 x 108 m/s for the speed of light in a vacuum.
Research and summarize the concept of the Quantum Computer and explain the concept of the Qubit as opposed to the traditional bit.
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