Which of the following is TRUE regarding electron transfer in electrostatic charging by rubbing?     This allows an object rubbed to cause a corona discharge.   The triboloectric series dictates the charge of the object.   One object becomes positively charge while the other negative.   Polarization causes the transfer of protons to another object

Q: The figure shows an 7.7 kg stone at rest on a spring. The spring is compressed 10 cm by the stone. (...

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Q: The following conversions occur frequently in physics and are very useful. (a) Use 1 mi = 5280 ft an...

A: In Question no 2 ) we need to convert the units .  For conversion, we need to replace the given unit...

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Q: totally weighing 750 kilo 7 French artillerymen w being pulled across the C da snowy terrain which H

A: We know that here each cannon was mounted on a sled, totally weighing 750 kilograms (7350 N), which ...

Q: 13. Calculate the magnitude of the net torque below. a. 29 N.m b. 88 N.m c. 288 N.m d. 145 N.m e. N...

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Q: An electric field of magnitude 5.25 x 105 N/C points due east at a certain location. Find the magnit...

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Q: As the ball rolls down the hill the ball speeds up and the outside of the ball gets a little warmer....

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Q: The figure shows an 8.4 kg stone at rest on a spring. The spring is compressed 10 cm by the stone. (...

A: Stone will lose contact (no longer apply a upward force on stone) with spring when its extension whe...

Q: For each circuit, find the values of the currents and voltage in each resistor. Place all the units ...

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Q: If a rigid body is subject to planar motion in the xy-plane, then the angular momentum about the rig...

A: For a rigid body, the angular momentum (L) is the product of the moment of inertia and the angular v...

Q: a 500 W appliance used for 2 h a 1000 W APPLIANCE used for 1 h appliances (a) and (b) connected in p...

A: if P is the power of the appliance   E  is the energy used by the appliance, therefore E = P*t  wher...

Q: An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 oC and rejects hea...

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Q: In what phase is the substance at 250 K and 50 atm pressure?  What phases will exist at 1 atm and 19...

A: The solution is obtained from the CO2 phase diagram

Q: An elevator cab that weighs 24.5 kN moves upward. What is the tension in the cable if the cab's spee...

A: GivenWieght of elevator cab, W=24.5 kN

Q: A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.4 V when it is delivering ...

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Q: 2.9 Find the total weight of a 10 ft’ tank of oxygen if the oxy- gen is pressurized to 500 psia, the...

A: we have PV = nRT P is in pascals V in meter cubed T is in kelvins    

Q: A body of mass M at rest explodes intò three two of which of mass M/4 each are thrown off in -1 and ...

A: Here, we calculate the given as follow;

Q: Consider the circuit shown below. (Assume & = 9.00 V, R, = 1.90 N, R, = 4.10 N, R3 = 6.40 n, and R, ...

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Q: The loaded cab of an elevator has a mass of 4.70 x 10° kg and moves 233. m up the shaft in 21.0 s at...

A: mass m=4.7*103 Kg displacement x=233 m time t=21 s To find: Power, P=?

Q: Derive the formulas, make use of calculus ideas. Put FBD and Box the final answers

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Q: Four resistors are connected to a battery with a terminal voltage of 12 V, as shown in the figure be...

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Q: A wooden block of mass 25m sits on a floor attached to a spring in its equilibrium position. A bulle...

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Q: A boy tossed the basketball at an angle of 34-degrees from the horizontal. The basketball is 2.0 m a...

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Q: A pulse is sent down a rope that is tied to a wall. On which side of the rope will the pulse be refl...

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Q: Use the table below for the value of permittivity of dielectric. Dielectric E (x 10-11 C²/N ·m² Air ...

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Q: Determine the Thevenin equivalent of the circuit below ЗА 10 N 16 N www www 10 Q 5Ω 24 V

A: Given:

Q: 1. Identify which central charge has the biggest net force acting on it. 2. Describe the net force o...

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Q: Absorption Diffraction only Diffraction and Reflection Refraction interference Answer Bank

A: Absorption - A  Diffraction only - C Diffraction and interference - D Reflection - E Refraction - B ...

Q: 6. What would be the velocity of an object that started at 78 meters and ended at 135 meters if it t...

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Q: In an LR-Csenes crcuit. the resistance is 420 chma. he inductance is 0.340 henrya, and the capacitan...

A: We know that the formula of the resonance angular frequency in the LCR  series circuit is given as  ...

Q: Calculate the electric flux through a trapezoid, with measurements of 4 cm at the smaller base, 7 cm...

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Q: On a part-time job, you are asked to bring a cylindrical iron rod of length 85.8 cm and diameter 2.8...

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Q: as a car comes to a stop (which means velocity is equal to zero, when the car stops), it slows down ...

A: given : u = 25 m/s, v=0, t=2.8 sec asked : acceleration a formula : v=u+at

Q: A skydiver has 20853 J of kinetic energy while falling at terminal velocity. After opening the parac...

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Q: Hamlet, a hamster, runs on his exercise wheel, which turns around once every 0.5s. What is the frequ...

A: Given data:  Number of revolutions = 1 Time (t) = 0.5 s Required: Frequency (f) 

Q: Consider the pressure of a height of 10 km in a volume of air, M = 0.0289 kg/mol. If the pressure at...

A: Given data: The molecular weight of air is M=0.0289 kg/mol. The pressure at ground level is p0=1 at...

Q: Use the waves lab to help you answer the question below. Answer Bank Identify areas of constructive ...

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Q: A spherical conductor with radius 40 cm has a surface charge density of +15 C/m2. (a) what is the to...

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Q: Determine the sun's altitude ation at 23.58°N latitude.

A: We know that the formula of the declination angle is given as  δ= 23.45°sin360365284+n where n is th...

Q: A car of mass 1200 kg climbs a 300 hill with vertical height of 100 m. If the car has a net forward ...

A: Given: Mass (m) = 1200 kg Force (F) = 70000 N

Q: An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting...

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Q: Assuming that there are 1.5 free electrons per gold atom. The electrical conductivity and density fo...

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Q: A 1080 kg car accelerates at a rate of 2.1 m/s/s over a distance of 18 meters. How much work was don...

A: Given, mass of the car, m = 1080 kg acceleration of the car, a = 2.1 m/s2 distance traveled, d = 18 ...

Q: 1. On a part-time job, you are asked to bring a cylindrical iron rod of length 85.8 cm and diameter ...

A: The answer is below

Q: ction takes place at a height of 400km and that the maximum destiny in the  ionosphere corresponds t...

A: We know that the formula of the refractive index is given as  η= 1-81Nf2          - ----------------...

Q: 8. Determine the Magnitude of the Resultant Force acting on the Screw Eye and its direction measured...

A: Given data: The force in horizontal direction is F1=400 N. The force at θ=40° is F2=600 N.

Q: An ultrasonic flow meter for measuring flow rate in a square channel uses two transducers that are p...

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Q: How much work is done lifting a 2.3 N hamburger a vertical distance of 0.30 meters from the table to...

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Q: As Halley’s comet orbits the Sun, its distance from the Sun changes dramatically, from 8.8×10^10 m t...

A: Given: Radius at closest approach rc=8.8×1010m, Speed at closest approach vc=5.4×104m/s, Radius at f...

Q: 2.63 A student in the laboratory plans to exert a vacuum in the head space above a surface of water ...

A: It is given that absolute pressure in the tank is, P = 10,400 Pa = 1 N/m² Temperature in the lab, T ...

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.