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A baseball hit at an angle of θ to the horizontal with initial velocity v0 has horizontal range, R, given by
Here g is the acceleration due to gravity. Sketch R as a function of θ for 0 ≤ θ ≤ π/2. What angle gives the maximum range? What is the maximum range?
the efficiency of a particular car engine is 27 when the engine does 8.7 kj of work per cycle. assume the process is
A person's prescription for his new bifocal eyeglasses calls for a refractive power of -0.0650 diopters in the distance-vision part, find both the near point and the far point. It asks for both, not just one
A stationary particle of charge q = 2.4 × 10-8 C is placed in a laser beam (an electromagnetic wave) whose intensity is 2.7 × 103 W/m2. Determine the maximum magnitude of the electric force
A small 12.3g plastic ball is tied to a very light 26.6cm string that is attached to the vertical wall of a room. A uniform horizontal electric field exists in this room. Find the magnitude of the electric field in the room
Identify at least THREE everyday examples of waves that travel through each of the following:
A 40 g bullet traveling 500 m/s penetrated 5 cm into a tree trunk. what was the retarding force on the bullet
In fair weather, a plausible value for Earth's atmospheric electric field is 99 V/m. Find the energy stored in 3.0 km3 of the fair-weather atmosphere
What are some differences between laser light and “normal” light? In this regard,why did Thomas Young need the first single slit in his famous experiment?
The "Giant Swing" at a county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. (See the figure below (Figure 1) ) Each arm supports a seat suspended from a 5.00m -long cable, the upper end of wh..
A carnot heat engine operates between reservoirs at temperatures of 864 K and 297 K. In one cycle it absorbs 1,405 J heat. How much work is done by the engine
A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway, How much time is needed for the plane to clear the intersection
A 0.39 cm high object is placed 8.7 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image
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