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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.
Two people stand 5.20 m apart and 4.00 m away from a large plane mirror in a dark room. At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam straight strikes the other person.
A 2.0cm -tall candle flame is 2.0 m from a wall. You happen to have a lens with a focal length of 42cm, For each location, what is the height of the image
three charges shown in figure from an equilateral trangle with 4.9 cm long sides what is the electrical potentialat the point indicted with the dot
An ac generator has a frequency of 4.80 kHz and produces a current of 0.0400 A in a series circuit that contains only a 231 resistor, Obtain the voltage of the generator
at the top of a 100m cliff a backpack is dropped. one second later an archer fires an arrow straight down that hits the backpack just as it reaches the ground, How long does it take for the backpack to reach the ground
The position vector of a particle of mass 1.80 kg as a function of time is given by r = (6.00i + 4.60t j ), where r is in meters and t is in seconds. Determine the angular momentum of the particle about the origin as a function of time. Answer should..
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, What was the bear's average speed
You are standing 2.5 {rm m} straight in front of one of the two loudspeakers. They are 3 {rm m} apart and both are playing a 686 {rm Hz} tone in phase. As you begin to walk directly away from the speaker, at what distances from the speaker do you ..
An ideal transformer has 400 turns on its primary and 18 turns on its secondary. what is the power output
A rock is shot vertically upward from the edge of the top of a tall building. with what upward velocity is the rock shot
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -95?C. By how much does her mass increase
The electric potential in a region is V=-Vo(r/R), Find expressions for the magnitude and direction of the electric field in this region
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