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An archer wishes to shoot an arrow at a target at eye level a distance of 43.5 m away. If the initial speed imparted to the arrow is 67.0 m/s, what angle should the arrow make with the horizontal as it is being shot?
Evaluate the magnitude of the apparent weight of a 84 kg astronaut 4500 km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.1 m/s^2?
X rays diffract from a crystal in which the spacing between atomic planes is 0.168 nm. The second-order diffraction occurs at 46.0. What is the angle of first-order diffraction
You have designed a rocket to be used to sample the localatmosphere for pollution. It is fired vertically with aconstant upward acceleration of 20 m/s2. Determine the total time the rocket is in the air
Near the earth the intensity of radiation from the sun is 1.35 kW/m2. What volume of space in this region contains 1.0 J of electromagnetic energy? (c = 3.0 x 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) options:
q1. a 55 year old woman who is complaining of intermittent flushing itching and heartburn for several months. mega
A typical adult ear has a surface area of 1.45 × 10-3 m2. The sound intensity during a normal conversation is about 2.49 × 10-6 W/m2 at the listener's ear. How much power is intercepted by the ear
A piece of thin spherical shell that has a radius of curvature of 90 cm is silvered on both sides. How far was the mirror moved
A wheel 32.1 cm in diameter accelerates uniformly from 227 rpm to 363 rpm in 5.11 s. How far will a point on the edge of the wheel have traveled in this time
You are given a 10-mH inductor and two capacitors, of 5.0- and 2.0-?F capacitance. List the resonant frequencies that can be generated by connecting these element in various combinations.
A free electron and a free proton are exactly 1.2cm apart. Find the magnitude of the acceleration of the proton
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward, What is the total time the blue car is moving, What is the acceleration of the yellow car
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
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