Ultimate Physics Study Guide - Questions & Answers

explain what happens to the heat energy that is absorbed during this time while the temperature does not change.
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the pressure inside a tire is measured as 28.0 poundsinch2. what is its pressure in newtonscentimeter2? 1 pound
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a 100 watt light bulb is screwed into a standard 120-v ac socket. find the rms current, the peak current, and the peak power consumption
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a motorcyclist moves at a constant speed down one hill and up another hill along the smooth curved surface. when the motorcyclist reaches the lowest point of the curve its velocity and acceleration directions are: (a) (b) (c) (d) 5. a car moves along the curved track. what is the apparent weight of the driver when the car reaches the lowest point of
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which statement is true about electron shielding of nuclear charge? which statement is true about electron shielding of nuclear charge? core electrons efficiently shield one another from nuclear charge. outermost electrons efficiently shield core electrons from nuclear charge. outermost electrons efficiently shield one another from nuclear charge. core electrons efficiently shield outermost electrons from nuclear charge.
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a shopper in a supermarket pushes a loaded 37 kg cart with a horizontal force of 13 n. the acceleration of gravity is 9.81 m/s2 . a) disregarding friction, how far will the cart move in 3.2 s, starting from rest? answer in units of m
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if the electric field has a magnitude of 460 n/c and the magnetic field has a magnitude of 0.18 t , what speed must the particles have to pass through the selector undeflected?
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In your DC experiment, when the capacitor was just beginning to charge the current in the circuit was O maximum between maximum and minimum minimum
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True or False - To say that an aircraft carrier was traveling S/SW at 200 mph is an example of VELOCITY.
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a scuba diver and her gear displace a volume of 69.6 l and have a total mass of 72.8 kg. (a) what is the buoyant force on the diver in seawater? (b) will the diver sink or float?
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questions 10-11 refer to a ball that is tossed straight up from the surface of a small, spherical asteroid with no atmosphere. the ball rises to a height equal to the asteroid's radius and then falls straight down toward the surface of the asteroid. 10. what forces, if any, act on the ball while it is on the way up?
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the shortest wavelength of the hydrogen lyman series is 91.13 nm. find the three longest wavelengths in this series
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how long would a day be if the earth were rotating so fast that objects at the equator were apparently weightless?
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shapley, in order to understand the shape of the milky way, traced out the distribution of . a. globular clusters b. neutrinos c. quasars d. black holes
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the low-frequency speaker of a stereo set has a surface area of 0.04 m2 and produces 2.13 w of acoustical power. what is the intensity at the speaker (in w/m2)?
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by studying distant galaxies in the 1920s, hubble made what important discovery that led us to conclude that the universe is expanding?
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negative work means a. the kinetic energy of the object increases. b. nothing; there is no such thing as negative work. c. the object has negative velocity. d. the kinetic energy of the object decreases. e. the object does not move.
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1. a race car has a mass of 710 kg. it starts from rest and travels 40.0m in 3.0s. the car is uniformly accelerated during the entire time. how big is the net force acting on the car?
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instantaneous speeda) total distance covered divided by the total time required average speedb) rate of change of velocity with time accelerationc) rate of change of distance with time speedd) speed at a particular instant of time
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how much energy (in j) must the shock absorbers of a 1180 kg car dissipate in order to damp a bounce that initially has a velocity of 0.760 m/s at the equilibrium position? assume the car returns to its original vertical position.
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a vertical spring has a spring constant of 100 n/m. when an object is attached to the bottom of the spring, the spring changes from its unstretched length of 0.50 to a length of 0.65 m. the magnitude of the weight of the object is
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a satellite is in a circular orbit about the earth at a distance 5.7 times the earth's radius above the surface. what is the speed of the satellite?
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two identical waves are emitted from two sources. if destructive interference occurs at a point where the path length difference is 1 meter, what is a possible wavelength?
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A British Thermal Unit (BTU) is defined as the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit. Your family has a water heater that is rated for 30,000 BTUs and has a capacity of 500 pounds of water. What is the expected change in temperature of the water?a. 140 Fb. 120 Fc. 90 Fd. 60 Fe. 30 F
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