In Newton's Law of Gravity,     how do we know a value for "G"?       G is calculated from other fundamental constants based on the principles of physics.       It depends on what the masses are made from.     Only by experiment     We do not know how large G is.

Q: A 120.0-V motor draws a current of 5.92 A when running at normal speed. The resistance of the armatu...

A: Given: V=120 Virunning=5.92 AR=0.629 Ω

Q: What is the average density of a neutron star that has the same mass as the sun but a radius of 91.5...

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Q: Thunderstorms can have an electric field of up to 3.4 x 105 N/C. What is the magnitude of the electr...

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Q: What is the RMS speed of CO2 gas at a temperature of 270 с? a. 268 m/s b. 412 m/s С. 305 m/s d. 505 ...

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Q: In a student laboratory exercise, the wavelength of a 44,300 Hz ultrasound wave is measured to be 0....

A: Given the wavelength and frequency of a longitudinal wave, it is required to find the temperature of...

Q: What is the dot product of two vectors A = 2x + 4 y + 7z and B = -3x + 8y - 2 z where it is unders...

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Q: ia) Write the flow rate relation mass, density and volume. ib) Advantage of SI system of units over ...

A: a.  Mass flow rate can be calculated by multiplying the volume flow rate by the mass density of the ...

Q: Exs whut will be accelenation A body a fotce of.360 N apblied do it P

A: Given data :             Force  = F             Mass of body = m      To find :            Accelerat...

Q: 7. An electric heater is made of Nichrome wire. The wire has a resistance of 15.2 Ω at a temperature...

A: Given value--- resistance R0 = 15.2 ohm. initial temperature = 20 degree C.  final temperature = 26...

Q: A long-straight wire carries a current as shown in the figure. In what direction is the magnetic fie...

A: Right hand thumb rule :- This rule is used to know the direction of magnetic field due to straight-c...

Q: Problem 5: A student standing on a cliff throws a stone from a vertical height of d = 8.0 m above th...

A:  Vo=19m/s  Angle =24°  d=8m We have to find the  stone had been thrown front the cliff too with the ...

Q: 2. A circuit has 10 ohms of resistance and 20 amps of current. A how much voltage would be necessary...

A: Given data :             Current = i             Resistance = R            To find :               V...

Q: A 4.4 Hz continuous wave travels on a Slinky. If the wavelength is 0.57 m, what is the speed of wave...

A: We know thatV=f×λHereV=Speed of wavef=Frequencyλ=Wavelength

Q: Neglect the diameters of the small pulleys and establish the relationship between the velocity of A ...

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Q: 3 For the case of myoglobin, where mnet =4000 g/mole, how fast does a centrifuge have to spin before...

A: 2″N 2 πX15000 W= = 1570 rad/s   60 60   The bowl volume, V-b(1₂²-1²)   = π x 0.25(0.02²-0.01²) X   =...

Q: 5= 5.990î ら= s.9907+ 3.995 さ= s.9927 +8.995g

A: The answer is below

Q: Please see attached image. Thank you

A: Given, Mass of truck M = 1800 kg Initial velocity of truck vt = 14 m/s  Mass of car m = 1000 kg Init...

Q: 2. Walking by the Bard tennis courts you'll frequently find a ball that's been hit outside the fence...

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Q: 4. A spherical copper ball has a diameter of 5 cm. Determine its weight.

A: "Since you have asked multiple question, as per our guidelines we will solve the first question for ...

Q: Problem 2: A baseball is thrown with velocity vo at an angle 0 = 45° above the horizontal. The verti...

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Q: 2. Light bulbs operate at about 3000K. a. What is this temperature in Celsius? b. What is the wav...

A: As per our guidelines we will solve only first three subparts for you. To get remaining subparts sol...

Q: The International Space Station orbits Earth at an altitude of 4.07x10° m with a speed of 7.65x103 m...

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Q: Calculate the circular orbit height of the satellite if the frequency which it emits is reaching an ...

A: This question involves the concept of Gravitation and Waves. Doppler's effect is the phenomenon of c...

Q: The angle between the two short sides is 90°. The two short sides of the triangle have length a. Inv...

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Q: identify the source of the force needed to keep the objects in question moving in their circular pat...

A: For any object to be in a stable circular orbit the object should be under the influence of a centri...

Q: 9. An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125µC. How fast will the...

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Q: Problem 6: A football is punted from the ground, it passes through the apex of its flight, and it be...

A: Given,vhorizontal = 16.5 msvvertical = 2.25 ms

Q: 1. What is the magnitude and direction of the force exerted on a 3.50 µC charge by a 250 N/C electri...

A: Answer:-  Given  Charge (q) = 3.50 uC     q = 3.5 × 10-6 C  Electric field (E) = 250 N/C  Magnitude ...

Q: Suppose a particle of mass m is in a region where its potential energy varies as ax4, where a is a c...

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Q: A block is sliding along a horizontal surface with 100 J of kinetic energy. The kinetic frictional f...

A: Given data:  Kinetic energy (KE) = 100 J Time (t) = 5 s Required: The rate of work done by force of ...

Q: Modern roller coasters have vertical loops like the one shown in the figure. The radius of curvature...

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Q: OLner tIan 2 DE Problem 1: Two objects are sliding towards each other. Object A is traveling at 3m/s...

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Q: Part A Racing greyhounds are capable of rounding corners at very high speeds. A typical greyhound tr...

A: Givendiameter of tack=45 mSpeed ,v=15 m/s

Q: A box having a mass of 4 kg moves up to point B with an initial velocity 7 m/s at point A on an incl...

A: According to conservation of energy  Total energy of isolated system remains constant.  Initial tota...

Q: 200g of water at 50°C in a 80g glass are added to 10g of ice at 0°C. Solve for the final temperatu...

A: mass of water = 200 g mass of glass = 80 g initial temperature of water and glass = 50o C mass of ic...

Q: "Use the surface integral in​ Stokes' Theorem to calculate the circulation of the field F=x2i+4xj+z...

A: GivenF=x2i+4xj+z2kthe ellipse25x2+9y2=10

Q: A 50-kg block is pushed a distance of 5.0 m across a floor by a horizontal force FP whose magnitude...

A: Given that:- Mass of block=m=50kg

Q: 3. The charge passing through a wire is q = (80t + 20) C. What is the current?

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Q: 3. (a) Find the direction and magnitude of an electric field that exerts a 4.80 x 10-17 N westward f...

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Q: What is the magnitude and direction of the electric field at a point that is a perpendicular distanc...

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Q: Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100 kg of load....

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Q: Draw FBD’s for m¡ and m2 when the m¡ is launched with a velocity to the left up while it moves to th...

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Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure...

A: Given:

Q: Below are typical values of resistivity for various samples of water. Suggest reasons for the wide v...

A: Conductivity is inversely proportional to the resistivity, we know,                                 ...

Q: Work 1. How much work is done by a girl weighing 500 N when climbing 5.0m up a rope in the school gy...

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Q: A peregrine falcon in a tight, circular turn can attain a centripetal acceleration 1.5 times the fre...

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Q: . A ballast bag is dropped from a balloon that is 400 m above the ground and rising at 13 m/s. For t...

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Q: When a certain quantity of helium gas contained inside and engine cylinder combusts, the expanding g...

A: GivenRadius=10cm=0.1mChange in length=8cm=0.08mPressure=140KP=140×103Pa

Q: What is the importance of capacitors in every device? And how could you relate the functions of capa...

A: Answer:-  The importance of capacitors in every device. The main function of capacitors is to store ...

Q: An engineer has three different capacitors of unknown capacitance. She labels them C,, Cz, and C3. F...

A: Given that:- Three capacitors of unknown capacitance is given in the question.

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.