Ultimate Physics Study Guide - Questions & Answers

a satellite of mass m takes time t to orbit a planet. if the satellite had twice as much mass, the time 169) for it to orbit the planet would be
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a positive charge is moving to the right and experiences an upward magnetic force. in which direction must the magnetic field have a component?
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true or faule because only one path exists for the current to flow through a series circuit, it must flow through each resistor in the circuit.
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suppose that experiment 1 and experiment 2 are conducted at the same time; one student drops the ball from rest at the same instant that a second student horizontally rolls an identical off the table. after both balls have traveled half their vertical distance to the floor, what is the acceleration of the center of mass of the two-ball system relative to earth?
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(a) a pendulum that has a period of 3.00000 s and that is located where the acceleration due to gravity is 9.79m/s2 is moved to a location where the acceleration due to gravity is 9.82m/s2. what is its new period? (b) explain why so many digits are needed in the value for the period, based on the relation between the period and the acceleration due to gravity.
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a block is on a frictionless table, on earth. the block accelerates at 5.3 m/s2 when a horizontal force is applied to it. the block and table are set up on the moon where the acceleration due to gravity is 1.62 m/s2. a horizontal force of 5 n is now applied to the block when it is on the moon. the acceleration imparted to the block by this force is closest to
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into a jug after a party. the host then inserts a cork with a 2.00-cm diameter into the bottle, placing it in direct contact with the wine. the host is amazed when the host pounds the cork into place and the bottom of the jug (with a 14.0-cm diameter) breaks away. calculate the extra force exerted against the bottom if he pounded the cork with a 120-n force.
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the king gives arhcimedes his new crown and asks him to check if it is pure gold. archimedes finds the weight of the crown in air to be 2 stones and the weight while it is submerged in water is 1.83 stones. is the crown made of pure gold?
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what is the system's potential energy when its kinetic energy is equal to 34e ? view available hint(s)for part a what is the system's potential energy when its kinetic energy is equal to ? ka2 ka22 ka24 ka28
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ou are walking up an icy slope. suddenly your feet slip, and you start to slide backward. will you slide at a constant speed, or will you accelerate?
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in magnetic circuits, the effect of magnetizing flux can be represented by a magnetizing inductance. this inductance appears in parallel with the leakage inductance. a) false b) true
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a vertical spring stretches 3.8 cm when a 16-g object is hung from it. the object is replaced with a block of mass 28 g that oscillates up and down in simple harmonic motion. calculate the period of motion.
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ocean waves and electromagnetic waves are similar in that they both transmit energy. t or f
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A car accelerates steadily from rest to 30m/s in a distance D and time T another car takes 3T to accelerate from stationary to the same final velocity. what distance does the second car cover during the new acceleration?
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If you had the opportunity to travel back in time and carry only one technological device that would help the world? What would? Why would you take it?
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Equilibrium: In the figure, a uniform ladder 12 meters long rests against a vertical frictionless wall. The ladder weighs 480 N and makes an angle 0 of 80 with the floor. A man weighing 800 N climbs slowly up the ladder When he has climbed to a point that is 7.8 m from the base of the ladder, the ladder starts to slip. What is the coefficient of static friction between the floor and the ladder? 7.8 m
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how much electrical energy is converted to light and thermal energy by a 140 w light bulb in one day?
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what is the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6m?
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disregarding friction, how far will the cart move in 3.2 s, starting from rest? answer in units of m.
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using your data, how are you able to determine if conservation of momentum occurs in each collision?
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an proton accelerates through an electric potential difference of 50 v. how much energy does the proton gain in joules
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determine the magnitude of the minimum perpendicular force that must be applied to a 3.0 kg book to keep it from sliding down a vertical wall.
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calculate the time in seconds it would take for a radio frequency signal to travel round-trip between earth and an meo satellite at 20,000 km.
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calculate the angle at which a-wideslit produces its first minimum for 410-nmviolet light. (b) where is the first minimum for700-nm red light?
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