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If a runner's power is 400 W as she runs, how much chemical energy does she convert in 10.0 minutes.
A loudspeaker diaphragm is oscillating in simple harmonic motion with a frequency of 330 Hz, What is the magnitude of the maximum acceleration
Suppose an electron is accelerated from rest through a difference in potential of V = 6.23 V. Find the speed of the electron after the collision
The spring potential energy is given by U = 1/2 kx^2. What is the kinetic energy when the spring reaches equilibrium
An object is placed 10 cm in front of a concave mirror whose focal length is 21 cm. The object is 3.9 cm tall. Decide (a) the location of the image, taking a real image as a positive value and a virtual image as a negative value.
a student standing on a train staiton observes that the pitch (frequency) of the train decreases from 888.8 Hz to 862.8 Hz, What is the speed of the train
A point source of light is submerged 2.2 m below the surfaceof a lake and emits rays in all directions. What is the maximum radius that this circle could have
The distance between the eyepiece and the objective lens in a certain compound microscope is 18.4 cm. The focal length of the objective is 0.600cm, and that of the eyepiece is 1.80 cm. discover the overall magnification of the microscope.
An object is placed 30 cm from a converging lens forms an image 40 cm from the lens. is the image which is formed real or virtual
The sound wave has a frequency 500 Hz and a wavelength of 0.68 m. What is the speed of the sound wave
An alpha particle is moving at a speed of 5.0 × 105 m/s in a direction perpendicular to a uniform magnetic field of strength 0.040 T. What is the radius of the path of the alpha particle
If you were standing on a spinning turntable holding barbells close to your chest, how would your spin be affected? Why?
A potter's wheel of radius 0.26 m is turned on at t = 0 and accelerates uniformly. Find the angular acceleration and the total angular displacement of the wheel during this time
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