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You have a lens whose focal length is 6.63 cm. You place an object on the axis of the lens at a distance of 12.7 cm from it. How far is the object's image from the lens?
A rocket blasts off and moves straight upward from the launch pad with a constant acceleration. After 3.0 seconds the rocket is at a height of 77 m. what is its the speed at this time
Explain the concepts behind the gravitational constant, gc. Define the constant mathematically.
Two metal spheres are separated by a distance of 0.8 cm and a power supply maintains a constant potential difference of 770 V between them. what is the distance between the spheres at this time
A battery with an emf of 12.0 V shows a terminal voltage of 11.4V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
A student begins at rest and then walks north with an average speed of v1=0.85 m/s. What was the student's overall average velocity, in m/s, for the trip assuming the student spent equal times at speeds v1 and v2
Man pushes a 27-kg block 9.1 m along a level floor at constant speed with a force directed 45° below the horizontal. how much work does the man do on the block
An object with mass 3.7kg is executing simple harmonic motion, attached to a spring with spring constant 270N/m, find the maximum speed attained by the object
a charge uniform linear density 9.4 ncm lies on a string that is stretched along an x axis from x 0 to x 3.0 m.
A point like charge of +20nC sits at the center of a thick spherical shell of inner radius 4cm and the outer radius 6cm. The shell is made of copper and has a net charge of -10nC. Describe the distribution of charge on the conductor
A solid sphere rolls without slipping from rest down a plane 4.00 m long inclined at angle of 42.0 degree with respect to the horizontal. Determine the speed at the bottom of the incline
An unknown material has a normal melting/freezing point of -25.1° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). What is the latent heat of fusion of the unknown material
An object moves with constant acceleration 4.45 m/s2 and over a time interval reaches a final velocity of 12.4 m/s. If its initial velocity is 6.2 m/s, what is its displacement during the time interval
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