When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between two of diametrically opposite points will be R (a) 4 R (b) 8. - (c) 4R (d)

Q: Two point charges, Q = +5.40 μC and q = −2.00 μC, are separated by 5.0 m. What is the electric poten...

A: Two point charges, Q = +5.40 μC q = −2.00 μC separated by distance r = 5.0 m.   1μC = 10-6C.

Q: Impulse-Momentum Theorem. horizontally to the right at 50.0 m/s, and it leaves the bat traveling to ...

A: we have F∆t = change of momentum= final momentum-initial momentum

Q: (Do not type the unit in your answers) Blocks A, B, and C are placed as in the figure below and conn...

A:

Q: 4.5 J of work is required to compress the spring in the spring toy. If the spring constant of the sp...

A: Given data : Spring constant=K Work done=U   Required : Compression distance  

Q: 1. A spray can is used until it is empty except for the propellant gas, which has a pressure of 1344...

A:   We are authorized to answer one Question at a time, since you have not mentioned which question yo...

Q: In atomic absorption spectrometry, manganese vapour (Mn0 gas) with resonance absorption at 279.5 nm ...

A: We know that the ration of number of atoms in upper level(N1) to the lower level(N0) is given by, N1...

Q: 17) A conducting sphere contains positive charge distributed uniformly over its surface. Which state...

A:

Q: A spherical ball is thrown vertically downward With an initial the speed of 11.35 m/s from the top o...

A:

Q: Two electric charges are separated by 1.5 m (q1=-3.70µC and q2=+5.10µC). Find the electric potential...

A:

Q: Given the vector: A = (-5.8t2)î + (4.5t*)ĵ + (-5.9t)k Find the magnitude of: for t = 2. dt2

A: Answer: Given vector A=(-5.8t2)i + (4.5t3)j + (-5.9t)k  We have to find the magnitude of d2A/dt2 at ...

Q: An elevator weighing 22.200 kN moving downward with constant acceleration travels a distance of 30 m...

A:

Q: A stone with mass 0.80 kg is attached to one end of a string 0.90 m long. The string will break if i...

A: Tension in the string =mv2R

Q: A parallel-plate capacitor is fully charged by a battery. Now the battery is disconnected, and the d...

A: The voltage is directly proportional to distance The capacitance is inversly proportional to distanc...

Q: Show your solutions. 1. A total distance of travel of 2,000 km breaks every 200 km of a pattern of ...

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

Q: An electron is placed in a uniform electric field of (33) directed north created by two horizontal p...

A: Given: E =33 nN/C = 33*10-9  (directed north) d =103 fm =103*10-15 m  initial velocity of electron u...

Q: HINT (a) If R, = 4.22 Q and R2 = 6.57 N, calculate the single resistance equivalent (in Q) to the se...

A:  

Q: two charged spheres 10 cm apart attract each other with a force of 3.0 x 10^-6 N. What electrostatic...

A:

Q: 2. Study the figure below.

A: Equivalent capacitance in series  1/C = 1/C1 + 1/C2   equivalent capacitance in parallel  C = C1 + C...

Q: Using your graph paper, resolve the following vectors into their components: A = 10N East B = 15N 10...

A:

Q: What is the magnitude of the horizontal displacement of a body moving at (5i + 3j) m/s after 5 secon...

A:

Q: Your clothing tends to cling together after going through the dryer. Why? Would you expect more or l...

A:

Q: d. (Type only the letter of the correct answer) What is the magnitude and direction (CCW with respec...

A:

Q: The 915-kg motorized unit A is designed to raise and lower the 670-kg bucket B of concrete. Determin...

A:

Q: A glass container weighing 4 N has of water and a 1 N block of styrofoam (100 kg/m3) that is held ...

A: Buoyant force = weight of liquid displaced

Q: Two small spheres spaced 20.0 cm apart have equal charge. How many excess electrons must be present ...

A:

Q: How far from the origin has the particle gone after 0.11 minutes if Vx = 3m/s , Vy = 2 m/s and Vz = ...

A: Given: vx=3 m/svy = 2 m/svz = 3.31 m/st = 0.11 m

Q: Two blocks A and B are released from rest on a 30-deg incline when they are 15m apart. The fk under ...

A: Given that:- Separation between two block=15m

Q: Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00s, (c) 1.50s, and (d) 2.00s f...

A:

Q: 13 A projectile is thrown upward with a speed of 12 m/s on the surface of planet Z where the acceler...

A: The maximum height reached by a projectile is given by:- Hmax= v2/2g Where; v= initial velocity= 12 ...

Q: Starting from the Maxwell distribution of speeds, 3/2 v² cxp m mv² f (v) = 47N 2nkgT 2kBT find (a) I...

A:

Q: A catapult located at the edge of a 80-m high cliff was fired at 38 deg. from the horizontal with vi...

A:

Q: A stone is thrown vertically upward and returns to earth in 10 s. What was its initial velocity? a....

A: Given Stone is thrown vertically upward. Time taken to return to the earth = 10 s

Q: A body travels along a straight line according to the law: s = 3t2 - t- 2, where s is in meters and ...

A:

Q: Directions: Write the letter of the correct answer on your answer sheet. 1. A point charge of 2.0 uC...

A: Solution 1. Given charge q =2.0 μ C                                          So electric flux φe due...

Q: What is the efficiency of a Carnot engine when it gets heat from its hot reservoir at 675K and expel...

A:

Q: An elevator motor lifts a 2750-kg load to a height of 37m in 12.5s. Find the useful power output ...

A: We use the Work Energy theorem to solve this question. The potential energy of a body at a certain h...

Q: A capacitor of capacitance C is discharging through a resistance R.  (A) in terms of the time const...

A: Given: capacitance c resistance R time constant T=RC

Q: Vector 1: X newtons, south Vector 2: Y newtons, west X be the number of letters in your first name E...

A:

Q: A stone is thrown upward at 9.8 m/s. At the end of 1.0s, its acceleration is; a. zero b. equa...

A: Equation of final velocity of a body thrown upwards is given by v = u-gt, where u = initial velocity...

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

A:

Q: 40 Find cord 2 Te = ? 50 30 N ? cord 1 W = ?. weight Fw %3!

A:

Q: N2 In the grand-canonical ensemble, show that (8N2) = kBTBT, where BT is the isothermal compressibil...

A: A vast canonical ensemble (also known as a macrocanonical ensemble) is a statistical ensemble used t...

Q: The vehicle weights about 5x10^3lb and is used to lift a rock weighing 1x1063lb. The container of th...

A: Given, aT = 1 ft/s2  aA = aB = 0.5 ft/s2  mass of vehicle = mv = 5000 / 32.2 = 155.28 slugs    ........

Q: As spherical ball is thrown vertically downward With an initial the speed of 11.35 m/s from the top ...

A:

Q: The position of a particle changes from ĩ1 = (2.02 + 3.03) cm to 72 = (-4.0i + 3.0j) cm. What is the...

A:

Q: 1. The temperature of stars in the universe varies with the type of star and the age of the star amo...

A: We use Weins displacement law, λpeakT=2.838×10-3

Q: Ball A strikes ball B with an initial velocity of UA as shown. If both balls have the same mass and ...

A: If u1→ is initial velocity of Ball A, and u2→=0 is initial velocity of Ball BV1→= final velocity of ...

Q: A stone is dropped from a balloon while ascending at a constant rate of 9.99 m/s and the stone reach...

A:

Q: A helium-filled weather balloon has a 0.90 m radius at liftoff where air pressure is 1.0 atm and the...

A: We use the ideal gas law to solve this question. Ideal gas law is mathematically written as PV = nRT...

Q: A cyclist moves at constant acceleration, passing through two stores that are 70 m apart within 7 s....

A: The relation between speeds and distance travelled is given by v2-u2 = 2as,where v = final velocity,...

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.