List the sources of magnetism?

Q: A tungsten–halogen bulb emits a continuous spectrum ofultraviolet, visible, and infrared light in th...

A: In diffraction grating, the condition for bright maximum is given as, Here, d, m, θ and λ represent...

Q: A force is applied to a block to m below. If F =70.0 N and M= 3.00 %3D (Be sure to include a FBD.)

A:

Q: . Show that the power loss in transmission lines PL, is givenby PL where is the power transmitted to...

A: Given data The power transmitted to the user is PT The delivered voltage is V The resistance of powe...

Q: 5. A long cylindrical conductor of radius R carries a current I. The current density is non- uniform...

A: Radius of long cylindrical conductor = R J=br, where b is a constant. Consider a small element dr at...

Q: For A= 4î + ĵ − 3k,  B = -4î + ĵ + 5k, and  C= 5ĵ − 2k, find C · ( A−B )

A: Given : A= 4î + ĵ − 3k B = -4î + ĵ + 5k C = 5ĵ − 2k

Q: Rays of the Sun are seen to make a 36.0° angle to thevertical beneath the water. At what angle above...

A: Angle, A = 36°  refractive index of water, n = 1.33

Q: A spherical diving bell containing a camera is in the ocean at a depth of 115 m. It has a flat, tran...

A: The pressure at the depth is P=Pa+ρgh=101325 Pa+1025 kg/m39.8 m/s2115 m=1256500 Pa

Q: When you look at a fish in a still stream from the bank, thefish appears shallower than it really is...

A: Fish in a tank 

Q: A spool of thread consists of a cylinder of radius R1 = 4.3 cm with end caps of radius R2 = 9.9 cm a...

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Q: You hold a small flat mirror 0.50 m in front of you and can see your reflection 1.0 m 0.50 m twice i...

A: As plane mirror has flat reflective surfaces , the image formed in the mirror will be equidistant to...

Q: Myla participated in a running competition. She ran around a circular track with a radius of 1.0 x 1...

A: Given data: The radius of the circular track is R=1.0x102 m. The time taken by Myla to complete the...

Q: Two polarizers are oriented at 42.0° to one another.Light polarized at a 21.0° angle to each polariz...

A: The intensity, I1=I0cos2ϕ=I0cos221°=I00.872

Q: A high-jumper leaves the ground with a speed of 3 m/s. How high (in m) can he leap?

A: Given: The speed of the jumper is v=3 m/s.   The expression to calculate the height the jumper can...

Q: How many calories of heat is required to change 3.5 grams of ice at 0 Celsius to water at the same t...

A: Given values: Mass of the ice, m=3.5 grams Latent heat of fusion of water, Lf=80 cal/grams

Q: In the following image (attached image), a person slides down a ramp until he reaches the end of it ...

A: According to the law of conservation of energy, the total initial mechanical energy will be equal to...

Q: The electric field in an EM wave traveling north oscillates inan east–west plane. Describe the direc...

A: The expression for the direction of the propagation of the wave is given as, n⏜=E→×B→E→×B→ *Here E→ ...

Q: Twenty (20.0) mL of argon gas is stored at STP. If the temperature and pressure are both doubled, wh...

A: For an ideal gas equation, P1V1T1=P2V2T2 If the pressure and temperature is doubled, P2=2P1T2=2T1

Q: A 10-H inductor carries a current of 20 A. How much ice at 0° C could be melted by the energy stored...

A: The energy stored in the magnetic field is given by, Q=12LI2 Here, L is the inductance of the induct...

Q: A 55 kg block is hanging vertically from a massless string in an elevator.(a) If the elevator is not...

A: (a) tension in the string if the elevator doesn’t move T-mg=maT=mg+a=55 kg9.8 m/s2-0=539 N≈540 N

Q: 6. A wedge of cheese is suspended at rest by two srings which exert forces of magnitude F1 (Black) a...

A: Vertical component of force F1 equals the gravitational force. F1sinθ=FgravityF1sin50°=15 NF1=19.6 N...

Q: A box is initially sliding up a 32.5° incline at a speed of 13.0 m/s. The coefficients of friction b...

A:

Q: A piece of material, suspected of being a stolendiamond (n=2.42)is submerged in oil of refractive in...

A: refractive index of diamond, n = 2.42  refractive index of oil, n = 1.43  polarizing angle, i = 62° ...

Q: Find the magnitude and direction of the net gravitational force on mass A due to masses B and C in t...

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Q: A 1000 kg sports car is initially traveling at 5 m/s . The driver then applies the brakes for severa...

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Q: ddddddddddd

A:

Q: When blue light of wavelength 440 nm falls on asingle slit, the first dark bands on either side of c...

A:

Q: Light is incident on a diffraction grating with 7200 slits/cm and the pattern is viewed on a screen ...

A: Given Data: The number of silts is, N=7200 silts/cm The distance between the screen and the silts is...

Q: A 70.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 420 kg · m...

A: Initially the women and turn table are at rest; hence the angular momentum will be zero. The express...

Q: An object of mass 3.00 kg is subject to a force Fx that varies with position as in the Figure. Find ...

A: Given  mass m= 3kg  Fx, force acting in x direction. gravitational force act on mass = m*g 

Q: Two identical sleds slide down two frictionless hills, each starting from rest at the top of its own...

A: The relation between the speeds and distance travelled s is v2-u2 =2as , where v is the final speed ...

Q: Water travels through a pipe at 4 m/s. The pipe changes from a radius of 0.75 m to a radius of 0.25 ...

A:

Q: why is it not -9.8 m/s? also why is it not 8.8sin(-25)?

A: Given : Initial position of ball ( h' ) = 10 m Initial velocity (vi) = 8.8 m/s at an angle 25° below...

Q: not all the work done to pull the bowstring back is changed into elastic potential energy. why?

A: Elastic potential energy is the energy stored in the spring when it is displaced from its equilibriu...

Q: Which of the following is the tendency of an object to maintain its state of motion? * acceleration ...

A:

Q: 1. Answer the following: a. Carlo walks 8 km East, then 5 km South and finally 6 km West. Find his f...

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Q: (III) A resonant circuit using a 260-nF capacitor is to resonate at 18.0 kHz. The air-core inductor ...

A:

Q: While waiting in line, you become curious as to how long it takes to complete 1 lap.  You decide to ...

A: Given data The length of the track is l = 1 mile. The speed of the go-karts is v = 20 mph.   Therefo...

Q: 5. An applied force of 50 N is used to accelerate an object to the right across a frictional surface...

A:

Q: A box is initially sliding up a 32.5˚ incline at a speed of 13.0 m/s. The coefficients offriction be...

A: a) Using Newton's law, F=-mgsinθ-fma=-mgsinθ-μkmgcosθa=-gsinθ+μkcosθ=-9.8 m/s2sin32.5o+0.680cos32.5o...

Q: a 314kg bumper car goy 120MS has ald elash Callisran uitha 2ookg Stationary bumperceur How fast the ...

A: The mass of first bumper car is m1 = 314 kg. The mass of second bumper car is m2 = 200 kg. The initi...

Q: Cosmic microwave background radiation fills space with anaverage energy density of about  4 x 10-14 ...

A: (a) Average energy density = 12 ε∘ Emax2  ⇒ 4× 10-14 = 12ε∘ E2max⇒Emax = 8×10-148.85×10-12⇒Emax =0.0...

Q: Three objects AA, BB, and CC are moving as shown in the figure below (Figure 1). Assume that vAvAv_A...

A: Given : vA = 12 m/s vB = 9.6 m/s vC = 2.8 m/s mA = 5 kg mB = 6 kg mC = 10 kg

Q: A 1250 kg car is moving at 16.6 m/s. Then, 377 kJ of work is done on the car to increase its speed. ...

A: According to work-energy theorem, the work done by the net force on a body is equal to change in kin...

Q: A cannonball is launched from the top of a flat mountainside, which slopes upwards at35 degrees with...

A: The free-body diagram for the given situation.  

Q: Puck 1 (0.5 kg) travels with velocity 20 m/s to the right when it collides with puck 2 (1 kg) which ...

A: To determine: The final velocity of puck 2 after collision   Given: Mass of puck 1, m1=0.5 kg Mass o...

Q: What is the electric flux through a closed surface containing a 2.0 μC charge?

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Q: A 5.4-m-diameter merry-go-round is initially turning with a 4.1 s period. It steadily slows down and...

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Q: 6. Calculate the equivalent capacitance between points a and b for the network shown in the figure b...

A: Introduction: The capacitances are in series when the potential across the capacitor is different an...

Q: 1. Answer the following: a. Carlo walks 8 km East, then 5 km South and finally 6 km West. Find his f...

A: Solution:  

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.