Ultimate Physics Study Guide - Questions & Answers

two cars are traveling east. the front car travels 20 m/s and the rear car travels 35 m/s. if the horn from the rear car is 200 hz, what is the frequency heard by the front car.
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a watermelon explodes into three equal masses. one mass moves east at 15.0 m/s. if a second mass moves at a velocity of 10.0 m/s 45.0o s of e, what is the velocity of the third mass? (hint: the total momentum is zero, so how will your vector arrows add up?)
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find the speed, in meters per second, of a neutron that has the same magnitude of momentum as the x-ray photon. the nonrelativistic formula for momentum will be sufficiently accurate for this calculation.
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ball is thrown straight up, with a speed of 64 ft/s from the top of a 96 foot cliff. where is the ball t seconds later? when does it reach its maximum height? how high above the ground (bottom of the cliff) does the ball rise? when does the ball hit the ground?
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a point at an antinode of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 msms . what is the wire'??s mass?
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an object in shm oscillates with a period of 4.0 s and an amplitude of 16 cm. part a how long does the object take to move from x
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a cleated conveyor belt transports solid homogenous cylinders up a 1- incline. the diameter of each cylinder is 0.53 times its height. determine the maximum acceleration whihc the belt may have without tipping the cylinders as it starts
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an intern pushes a 72-kg patient on a 15-kg gurney, producing an acceleration of 0.60 m/s2 . how much work will the intern do by pushing the patient and gurney through a distance of 2.5 m if the kinetic friction between the gurney wheels and the floor is 25 n?
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A uniform plane wave with parallel polarization is propagating in a lossless dielectric medium (l is 1), and is incident obliquely onto a plane boundary with another lossless dielectric medium (u 2, E 2). (30%) (a) Derive the Snell's laws of reflection and refraction in terms of the refractive indices and angles. (b) Derive the general expressions for the reflection and the transmission coefficients of the EM field. Find such expressions in terms of the refractive indices if both media are nonmagnetic, i.e., M F M 240. (c) Derive the general expression for the Brewster angle. Find such an expression in terms of the refractive indices if both media are nonmagnetic. (d) Prove that, under the condition of no reflection, the sum of the Brewster angle and the angle of refraction is 90 if both media are nonmagnetic. (e) For total reflection to occur, find the condition for the medium property and the critical angle.
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In a cylinder, 1.20mol of an ideal monatomic gas, initially at 3.60105Pa and 300K, expands until its volume triples.Part ACompute the work done by the gas if the expansion is isothermal.Part BCompute the work done by the gas if the expansion is adiabatic.Part CCompute the work done by the gas if the expansion is isobaric.
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Classify each of the characteristics based on whether it applies to fission, fusion, or both. Fission Both Fusion Answer Bank predominates in the interior of the sun results in the emission of radiation involves transmutation of clements requires high temperature at initiation heavily involves neutrons used to generate electrical power
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Give the nuclear symbol, including superscript and subscript, for each of the following. Alpha particle Beta particle Gamma ray
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now the cart is being pulled along a horizontal track by an external force (a weight hanging over the table edge) and accelerating. it fires a ball straight out of the cannon as it moves. after it is fired, what happens to the ball?
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a car company advertizes that their new car can accelerate from rest to 70 km/s in 7 seconds. what is the car's acceleration
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a system releases heat to the surroundings and no work is done on or by the system. what are the signs of qsystem and wsystem?
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a motor lifts a mass m a height of 13 m in a time of 5.2 s. if the power output of the motor is 187 w, what is the mass in kg?
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if a planetary body (such as a rocky body bigger than about 400 km diameter) is big enough, it will be spherical. why is this:
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if the amount of energy calculated in part a is stored in an inductor in which the current is 80.0 a , what is the inductance?
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what is the velocity of the object at 5 s ? what is the velocity of the object at 5 ? 0.53 m/s 0.77 m/s 3.3 m/s 4.3 m/s 28 m/s
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a diatomic ideal gas undergoes an isothermal expansion from a volume of 1.1 m3 and pressure 63 kpa to a final volume of 2.8 m3. calculate the change in the internal energy in kj
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a block of aluminum has a heat capacity of 15 j/k at 300 k. approximately how many atoms are in this block of aluminum?
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the vibrations of a longitudinal wave move in a direction a. along the direction of wave travel. b. at right angles to the direction of wave travel. c. that changes with speed.
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how much time does it take for a student running at an average speed of 5 ms to cover a distance of 2km
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true or false?: when the da vinci x surgical system is in integrated mode and powered on via one of the component power buttons, the erbe vio dv generator will power on as well
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