When people are cold, they often rub their hands together to warm up. How does doing this produce heat? Where does the heat come from?

Q: 2. Assume the density of the rod is given by X. 2 = 16(1 +7) What is the rotational inertia (about o...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

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A: The idea behind parallax is that when the position of the observer changes, the more distant objects...

Q: Advanced Physics Question

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A: Kepler's third law states that the square of the period is directly proportional to the cube of the ...

Q: The minimum stopping distance for a car traveling at a speed of 30 m/s is 60 m, including the distan...

A: Part (a) Given: The initial velocity of car is u=30 m/s. The distance covered by car is d=60 m. The...

Q: please show all work step by step and do all parts (a through d) You drop a tennis ball of mass 59.0...

A:   When a body falls from a height h =2.50m, it strikes the ground with a velocityu u=2gh Let it reb...

Q: A 2.20 kg hoop 1.20 m in diameter is rolling to the rightwithoutslipping on a horizontal floor at a ...

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Q: A flask of ammonia is connected to a flask of an unknown acid HX by a 1.30  cm glass tube (where "X"...

A: Solution:   Given that,   Length of the Glass Tube (L)=1.30 m =130 cm Distance travelled by the Ammo...

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A: Infinite potential well from figure potentialV=0   ,0<x<L∞ elsewhere Time dependent Schroding...

Q: Determine the resultant of the force system shown: Y 400N 200N 350N 400N 2 250N 100N 60 300 450 30° ...

A:

Q: Light of wavelength 470 nm in air shines on two slits 6.00 x 10-2 mmapart. The slits are immersed in...

A: The expression for the fringe width is β=λDd     (1) Here, D is the distance of screen from slits, d...

Q: A large wooden turntable in the shape of a flat uniformdisk has a radius of 2.00 m and a total mass ...

A: Let r denotes the disc radius, M denotes the mass of the turntable, m denotes the parachutist mass, ...

Q: *PLEASE SOLVE #1, #2, and #3* Make a drawing of the path of an object in circular motion at constan...

A:

Q: At low temperatures, copper has a free-electron concentration n = 8.45 *1028 m-3. Using the free-ele...

A: The fermi energy can be written as EF=h22m3N8πV2/3                                      1 The densit...

Q: A solid uniform sphere and a thin-walled, hollow spherehave the same mass M and radius R. If they ro...

A: GIven: The mass of the solid uniform sphere and a thin-walled, hollow sphere is M. The radius of the...

Q: A large tank has a 40.0-cm-deep layer of water floating on top of a 60.0-cm-deep layer of glycerin. ...

A: Given: The length of the side of the cube is a=2 cm. The mass of the cube is M=9.20×10-3 kg. The e...

Q: Q8: Two packages at UPS start sliding down the 20 degree ramp shown in Figure. Package A has a mass ...

A: The free-body diagram of the package A is given below, Here, m denotes the mass of the box A, N den...

Q: The lower end of a long plastic straw is immersed below the surface of the water in a plastic cup. A...

A: (a) at the surface, the pressure is atmospheric pressure. therefore,   Po=P+PgaugePo=P+ρghP-Po=-ρgh ...

Q: The combined gas law PV=nRT is a very useful equation. From the equation one can see the relationshi...

A: Given, Pressure and Temperature at Mt. Everest 

Q: Assume a cylinder has a density given by p = Po(1+7) The axis of the cylinder lies along the z-axis....

A: Given: The density of the cylinder is ρ=ρ01+zL. Introduction: Moment of inertia is the name given to...

Q: 1. No need to solve this problem just plot or draw completely and accurately the forces and its resu...

A: Direction angle for 600 N force, θ=tan-134=36.87o             Counter clockwise from +x axis Directi...

Q: What has the larger kinetic energy, a 10g bullet fired at 500m/s or a 10Kg bowling ball sliding at 1...

A: E=0.5mv2 Kinetic energy of bullet. E=0.510 g10-3 kg1 g500 m/s2=1250 J

Q: A 12.0 kg mass, fastened to the end of an aluminum rod with an unstretched length of 0.70 m, is whir...

A: Given: The fastened mass is M=12 kg. The original length is l=0.70 m. The angular speed is N=120 rp...

Q: Solve both

A:

Q: A beam of parallel rays spreads out after passing through a thin diverging lens, as if the rays all ...

A: (a) Given: The focal length of the lens is 20.0 cm. The virtual image is 13rd the size of the object...

Q: A uniform solid disk made of wood is horizontal and rotatesfreely about a vertical axle at its cente...

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Q: A vessel with a volume of 700 cubic feet has a temperature of 130 degrees F, and a pressure of 20 ps...

A: Solution:   Given Values, Initial Volume (V1) =700 ft3Initial Temperature (T1)=1300 FInitial Pressur...

Q: What is the focal length of a makeup mirror that produces a magnification of 1.50 when the face is 1...

A: (a) From magnification equation m=-didodi=-mdo=-1.5012.0 cm=-18 cm

Q: Suppose you had a 5.00 kg sack of sugar and a bathroom scale. If you took the scale into an elevator...

A: Given: Suppose you had a 5.00 kg sack of sugar and a bathroom scale. If you took the scale into an e...

Q: A satellite 575 km above the earth’s surface transmits sinusoidal electromagnetic waves of frequency...

A: (a) The intensity of the wave is I=PAI=P4πR2I=25×103 W4π575×103 m2I=6.02×10-9 W/m2 (b) The amplitude...

Q: The piston of a gasoline engine oscillates in SHM with frequency50.0 Hz. At one point in the cycle t...

A: Given frequency of oscillator f=50Hz At position d=0.03m its speed u=12.4m/s a) The angular frequenc...

Q: A hydrogen atom in a 3p state is placed in a uniform external magnetic field B→ . Consider the inter...

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A: The equation of motion for a projectile fired at angle θ above the horizontal is given by Where x, ...

Q: An air puck of mass 0.17 kg is tied to a string and allowed to revolve in a circle of radius 1.4 m o...

A: Part (a) The free body diagram of the suspended mass m is shown as below, Since the suspended mass ...

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Q: A real-world example that exemplifies the relationship between net force and acceleration, with illu...

A: Consider a lawn mower at rest being pushed.

Q: A fairground ride (The Gravitron) spins its occupants inside a cylinder-shaped container. A child on...

A: Centripetal force=Fc=mv2r=mac,     where ac=centripetal acceleration=1.5×ag=1.5×9.8m/s2v=rac=8×1.5×9...

Q: Action at a distance, such as is the case for gravity, was once thought to be illogical and therefor...

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Q: For a patient in a typical hospital setting, the most importantmechanism of heat loss is radiation. ...

A: Given: The initial temperature of the patient T1 = 34 oC. The final temperature of the patient T2 =...

Q: Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts...

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Q: Long-term space missions require some form of artificial gravity to prevent astronauts losing bone m...

A: Using Newton's law, FC=FG2mω2r=mg2r=g2ω2

Q: Assume the surfaces are frictionless, m1 is 6.3 kg, m2 is 11.9 kg, and the angle is 35 degrees. What...

A: Let's assume the system is accelerating with a. And tension in the string is T. Then the forces acti...

Q: A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m fro...

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Q: Set up Lagrange’s equations in cylindrical coordinates for a particle of mass m in a potential field...

A: The kinetic and potential energy in the cylindrical form be defined as, K.E.T=12mr˙2+r2θ˙2+z˙2P.E.=V...