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Problem:
A pendulum of mass 0.4kg and length 0.6 m is pulled back and released from and angle of 10o to the vertical. What is the potential energy of the mass at the instant it is released. Choose potential energy to be zero at the bottom of the swing?
1. calculate the dc voltage applied to the 10 ? load resistor in the circuit shown below assume the diode threshold
at a distance from a point charge the electric potential is 3200 and the magnitude of the electric field is 2.0times105
A He-Ne laser produces light of wavelength 633 nm with intensity 1.02 103 W/m2, over a beam of cross-sectional area 0.940 mm2. How many photons per second are emitted by the laser?
A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the similar as that of the Moon, 27.3 days. How far away from the Earth m..
A convex spherical mirror with a radius of curvature of 14.5 cm creates a virtual image one half the size of the real object. Where is the object.
the moon has an angular size of .5degrees when viewed with unaided vision from earth. what is the angular size of the moon as seen through this telescope
A graph represents the displacement of a box (m = 0.75 kg) attached to a spring. The period is 0.92 seconds and the angular frequency is 6.8 radians/second. If the maximum speed of the box is 5.25 m/s, what is the displacement of the box when a ti..
A 150 gram block is projected up a ramp with an initial speed of 6.0 m/s. The coefficient of kinetic friction between the ramp and the block is 0.23. obtain how far along the surface of the ramp does the block slide before coming to a stop
a car starts at rest. it then accelerates at a rate of 1.3 ms east for 8.2 seconds. if itcontinues as this new velocity
A uniform chain with a mass of 1.47 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.381 m/s. Calculate the net force acting on the chain
A large boulder rests on a cliff 500 m above a small village in such a position that, What is the initial speed of the boulder
A projectile is fired into the air from the top of a cliff of height h = 198 m above a valley. Where does the projectile land
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