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Question: As a high-power laser engineer you need to focus a1.17-mm diameter laser beam to a10.3-µm diameter spot20.6cm behind the lens. What focal length lens would you use?
An object with mass 2.6kg is attached to a spring with spring stiffness constant 260N/m and is executing simple harmonic motion. find the maximum velocity attained by the object
Radiation from the head is a major source of heat loss from the human body. Model a head as a 20-cm-diameter, 20-cm-tall cylinder with a flat top. what is the net rate of heat loss on a chilly
An alert physics student stands beside the tracks as a train rolls slowly past. calculate the speed of the train
A 0.15 kg baseball collides with a 1.0kg bat. The ball has a velocity of 40 m/s immediately prior to the collision. Estimate how fast the baseball is moving as it leaves the bat following the collision
When you insert a sheet of wood (κ = 2.00) between the plates of a capacitor, the capacitance becomes24.0 nF. What capacitance will it have if youinsert a block of glass (κ = 6.00) instead?
question consider a system of two balls in freefall neglect drag. one ball has a mass of 5kg and the other of 7kg. what
A 6.7uC particle moves through a region of space where an electrice field of magnitude 1300 N/C point in the positive x direction, find the components of the particle's velocity
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.147 liters per second, At what speed does the water exit the nozzle
A laboratory technician drops a 0.0840-kg sample of unknown material, at a temperature of 100.0°C, into a calorimeter. Compute the specific heat capacity of the sample
suppose you have a near-point distance of 16 cm. the angular resolution of the eye is determined by diffraction see the
A 0.500kg ball is dropped from rest at a point 1.20m above thefloor. The ball rebounds straight upward to a height of0.700m. What is the magnitude and direction of the impulseapplied to the ball by the floor?
Is the center of the mass of the pendulum-ball system at the center of the ball? If not, where and how is the center of mass located
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