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Batman attempts to hide out in a Batbox. The top is a mirrored surface, but the vertical sides are made of clear Batplastic (refractive index np = 1.333). It is located x = 2.74 m horizontally from the edge of the pool.
What is the minimum depth (measured to the top of the Batbox) that the Batbox can be below the surface of the water for the Caped Crusader to remain hidden from the Joker? Assume: The Joker gets down close to the water for the best view.
Answer in units of m.
Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. Illustrate what speed is the ski traveling at the bottom of the hill?
Find the emissivity of a surface that radiates heat at the same rate that it loses heat through convection when its temperature is 107° C
q1. a vertical spring with a spring constant of 370 nm is mounted on the floor. from directly above the spring which is
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Particle X has a speed of 0.960 c and a momentum of 1.70×10-18 kgm/s. What is the mass of the particle? What is the rest energy of the particle? What is the kinetic energy of the particle?
A certain telescope has an objective mirror with an aperture diameter of 153 mm and a focal length of 1610 mm. It captures the image of a nebula on photographic film at its prime focus by an exposure time of 1.34 minutes.
A 15.0 kg box is released on a 30 degree incline and accelerates down the incline at 0.30 m/s squared. Find the frictional force impeding its motion
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suppose a stone is thrown upward with an initial velocity of 44 ft per second and is released 4 ft above the ground.
Consider two identical insulated metal spheres, A and B. Sphere A initially has a charge of -6.0 units and sphere B initially has charge of -2.0 units. The sphere are brought in contact with each other for a short time and then separated again. What ..
A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 873 Hz from the wall. What is the frequency of the car horn
State clearly the difference (a) between electric potential and electric field, (b) between electric potential and electric potential energy.
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