Ultimate Physics Study Guide - Questions & Answers

The radioactive hydrogen isotope 3h is called tritium. it decays by beta-minus decay with a half-life of 12.3 years. What is the daughter nucleus of tritium?
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A skydiver dives from an airplane. air resistance is measured each second following the skydivers jump.Time after jump | Weight | Air Resistance1 sec | 500 N | 200 N2 sec | 500 N | 300 N3 sec | 500 N | 400 N4 sec | 500 N | 500 NWhich statement best identifies her speed at each second? a. The skydriver has the slowest speed at 2 secondsb. The skydriver has the fastest speed at 4 secondsc. The skydriver has the slowest speed at 1 second d. The skydriver has the fastest speed at # seconds
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Question 4What are some factors that influence flexibilityO Being TallO Weightlifting PRO HeredityO Sex and Age
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a disk of mass m slides with negligible direction along a flat surface with a velocity v. the disc strikes a wall head-on and bounces back in the opposite direction with a kinetic energy one-fourth of its initial kinetic energy. what is the final velocity of the disc
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which sentence correctly describes when the triple-alpha process occurs in the life cycle of an average-mass star
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a person is standing on a railroad station platform when a high speed train passes by. the person will tend to be
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a constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. where the pipe is narrow the water speed is 8.0 m/s. where it is wide the water speed is:
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A carnival ride starts at rest and is acceleratedfrom an initial angle of zero to a final angle of 6.3 rad by a counterclockwise angularrad acceleration of 2.0sWhat is the angular velocity at 6.3 rad?Answer using a coordinate system wherecounterclockwise is positive.Round answer to two significant digits.
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the student wishes to repeat the using different slit separations. what is the smallest slit separation, in micrometers, that produces a first-order maximum?
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what is the relationship between the specific rotation of (2s,3s)-dibromopentane and (2r, 3s)-dibromopentane? question 4 options: the specific rotation is equal in magnitude and have the same sign the specific rotation is equal in magnitude but opposite in the sign it is not possible to predict the specifi rotation the specific rotation is different in magnitude and opposite in sign the specific rotation is zero
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an automobile traveling at 80.0 km/h has tires of 75.0 cm diameter. what is the angular speed of the tires about their axles? if the car is brought to a stop uniformly in 300.0 complete turns of the tires (without skidding), what is the magnitude of the angular acceleration of the wheels? how far does the car move while braking
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determine the change in internal energy of a monatomic ideal gas that expands from an initial volume of 1.13 m3 to a final volume of 3.27 m3. during this process the pressure of the gas remains at a constant value of 2.82 105 pa.
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The epiphyseal, or growth, plates close at relatively younger ages in which of the following groups?
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when an airplane leaves the runway, its angle of climb is 15 and its speed is 275 feet per second. find the planes altitude relative to the runway in feet after 1 minute.
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9. Samuel and David are in the weight room bench pressing the same 900 N weight. If Davidhas longer arms than Samuel, who does more work on the weight while bench pressing? Why? can someone please help
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(b) By adding another component to the circuit, the student is able to obtain a range ofammeter and voltmeter readings.Ammeter(amps)0.100.150.200.250.30Voltmeter(volts)1.02.04.07.011.0Question:Which component did the student add to the circuit?
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Calculate the net force using the diagram below: (PLS EXPLAIN HOW U GOT TO UR ANSWER)
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7. What is the weight of a ball with a mass of 0.77 kg? (hint: how fast is gravity?)
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when three resistors are connected in parallel and one is removed, what happens to the resistance in the circuit?
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calculate the angular momentum, in kilogram meters squared per second, of the earth in its orbit around the sun.
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what is the minimum coefficient of static friction is needed so that a 1000 kg car could take a turn (of radius
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at what angle in degrees is the first-order maximum for 450-nm wavelength blue light falling on double slits separated by 0.0450 mm?
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if we have a system that uses 5 volts with a frequency of 1ghz and the power used is 3 watts, what is the power draw when we increase the frequency to 3ghz?
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an object completly submerged in water as shown in the figure. draw arrows, which represent the force of the water at that depth, at various locations on the top, bottom, and side of the object. how does the force on one side of the object compare to the force on the other? how does the force on the top compare to taht on the bottom
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