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A double convex thin glass lens has equal radii of curvature. The focal length of the lens is +63.5 cm and the index of refraction of the glass is 1.52. The lens is replaced with a plano-convex glass lens of the same focal length and thickness. The radius of curvature of the convex surface is 13.0 cm. The index of refraction of the glass of the plano-convex lens is?
An electron and a positron, each moving at 3.0*10^5 m/s, collide head on, disappear, Determine the momentum of each photon
A 3.0 block of wood sits on a table. A 3 bullet, fired horizontally at a speed of 440, goes completely by the block, emerging at a speed of 180.What is the speed of the block immediately after the bullet exits.
A rocket of total mass M and with burnout mass 0.20 M attains a speed of 3 200 m/s after starting from rest in deep space. Evaluate the exhaust velocity of the rocket?
A 1.5 kg copper block is given an initial speed of 3 m/s on a rough horizontal surface. Because of friction, the block finally comes to test. If the block absorbs 85% of its kinetic energy, calculate its increase in temperature.
A 11.0 kg monkey starts to climb a long rope to reach a banana located at a height of 6.50 m, Calculate the least amount of time the monkey could take to reach the banana without breaking the rope
If the parachutist comes to rest with constant acceleration over a distance of 0.710 m, illustrate what force does the ground exerts on her?
The company's basis in the inventory is $5,000. Explain how large a deduction is it allowed for this charitable contribution?
A tree falls on a bicycle path 40 m ahead of a cyclist traveling at 16 m/s, how far from the fallen tree will she be when she stops
Two speakers are emitting simple harmonic sound waves of frequency 258 Hz and 256 Hz. Describe the sound heard by a listener
Use Newton law to determine the force applied to the backrest when a 150-lb person leans 40% of his or her body weight against it. Determine the constant requiered for the spring
your car engine just died. your were moving rightward at 25 m/s, but your car slows to a rest in a distance of 120 m. what net average force was exerted on the car
What is the temperature of the outside air. What are the components of the displacement vector from camp to summit? What is its magnitude? select the x axis east, y axis north, and z axis up.
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