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1) Two sides of a triangle are 16.9 cm and 29.5 cm, with tehincluded angle 113o. What is the length of the thirdside? Answer in units of cm. What is the angle opposite the side16.9 cm? Answer in units of o.2) A high fountain of water is located at the center of acircular pool as in the figure. A student walks around the pool andestimates its circumference to be 108m. Next, the student stands atthe edge of the pool and uses a protractor to gauge the angle ofelevation of the top of the fountain to be 45.6o. Howhigh is the fountain? Answer in units of m.
A steam locomotive uses the back-and-forth motion of a drive rod to turn its 1.45 m diameter wheel. What's the rod's oscillation frequency when the train is moving at 30 m/s
Carlos is pitching in the nal game of the season. The pitcher's mound is 18.4 meters from home plate, With what speed does the ball cross the plate
A microscope uses beams of protons instead of photons/electrons. What wavelength would the beam of protons have if their momentum was acquired from a potential drop of 100 volts? (The answer is 2.87*10^-10 cm, but I don't know how to get there
in a Tom's double-slit experiment using 549nm light, a thin piece of plexiglass of refractive index 1.53 covers one of the slits. what is the minimum thickness of the plexiglass
a 145 Kg football player applies a force of 520 N horizontally on the opposing 125 Kg quarterback, How much work did the tackler do while pushing
A duffel bag of mass 15 kg slides down a 35o incline with an acceleration of 1.1 m/s2, Calculate the normal force exerted by the incline on the bag
Find the de Broglie wavelength of an oxygen molecule of average kinetic energy in air at a temperature of 194.0 K
A person lies on a balance board as shown in the figure below. The person weights 80 kg, and the scaleunder the person's feetreads 30 kg. Compute the position of the person's center of gravity
If an object of 50 grams of unknown material at 100 degrees C is mixed with 100 grams of water at 0 degrees C, the final temperature is 40 degrees C
The tropical year, the time from vernal equinox to the next vernal equinox, Find the number of seconds in one half of a tropical year
A cup of water is heated with a heating coil that delivers 32.75W of heat. In 6.18 minute, the temperature of the water rises by 10.59 oC. What is the mass of the water
A 10.48-m ladder with a mass of 24.4 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 270N. What is the net torque acting on the ladder
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