20. A small object has an excess of 4.7 x 10¹¹ electrons. The electric potential at a distance of 0.200 m from the object would be a. 2.7 x 106 V b. 3.4 x 10³ V C. 2.1 x 102² V d. 3.4 x 10³ N/C e. 2.6 × 106 N/C

Q: A rock is thrown directly up an with an initial velocity of v = 33.4 m/s at instant A as shown in…

A:

Q: What beat frequencies are possible with tuning forks of frequencies 254, 256, and 260 HzHz ?

A: The objective of this question is to find the possible beat frequencies when tuning forks of…

Q: An asteroid has a mass of m = 8.5 × 1012 kg and also has two rocket thrusters attached to it. One…

A:

Q: 7. A box of mass m = 80 kg is resting on a horizontal surface. The coefficient of kinetic friction…

A: This is the FBD FOR The case.here F=applied forcef=frictional forceN=normal reaction forceW= weight…

Q: Required information You plan to project an inverted image 29.0 cm to the right of an object. You…

A: Image formation by first diverging lens:Sign convention: light coming from right to the lens is…

Q: a 12 b y^ P Two long, straight wires carry currents in the directions shown in the figure above. 11…

A:

Q: A circular parallel plate capacitor has a separation of 0.050 mm. If the capacitance is 17.3 pF.…

A:

Q: In, suppose that & = 50.0 V, R=240.0 2 and L = 0.170 H. With switch S₂ open, switch S₁ is left…

A:

Q: Hydrogen gas is enclosed in a chamber at 200 degrees C and a volume of 0.0250 m3. Initially, the…

A:

Q: 5. An object is attached to a spring and completes only one cycle (i.e. goes back and forth and…

A: We have given the time period which is 0.250 secand the mass of object is 0.125 kgWe have to find1.…

Q: A solenoidal coil with 30 turns of wire is wound tightly around another coil with 300 turns. The…

A: See below

Q: An annular cylinder (mass 3.4 kg) with inner radius R1 = 15 cm and outer radius R2 = 39 cm is…

A:

Q: A box of mass m = 25 kg slides with an initial speed v0 = 7.0m/s up a slope which forms the angle =…

A:

Q: An asteroid of mass m = 8.5 × 1012 kg has two rocket thrusters attached to it. One thruster supplies…

A: F 1 = (8.0 × 107, 7.0 × 107) N F 2 = (4.0 × 107, −2.0 × 107) Nm = 8.5 × 1012 kg

Q: A loop has 75 turns with an area A=45 cm2 is situated in a uniform magnetic field B=3.45 T.  What is…

A: Turn of the loop is N =75area of the loop A = 45 cm2 = 0.0045 m2value of the initial magnetic field…

Q: Calculate the electric field intensity midway between two negative charges of 3.2 × 10-⁹ C and 6.4 x…

A:

Q: A turntable rotates at 33 rev/min. Calculate the angular velocity of the turntable. A particle on…

A: Angular velocity = 33 rev/min Distance from centre is r = 0.14 m

Q: A subway train starts from rest at a station and accelerates at a rate of 1.70 m/s² for 14.0 s. It…

A:

Q: What is milky way ?

A: The Milky Way is a barred spiral galaxy, a vast and intricate cosmic structure that contains our…

Q: Suppose that you release a small ball from rest at a depth of 0.590 m below the surface in a pool of…

A:

Q: 9. Two blocks (A and B) are at rest on a horizontal floor. Block A has a weight of 100 N, and block…

A:

Q: Conservation of Momentum 1. Refer to figure 1. The orange cart (m₁) collides with the red cart (m₂).…

A: Given data:Mass of orange cart (m1) =10.0 kgMass of red cart (m2) = 5.00 kgInitial velocity of…

Q: An asteroid of mass m = 8.5 × 10¹² kg has two rocket thrusters attached to it. One thruster supplies…

A: The objective of the question is to find the resultant force acting on the asteroid, the direction…

Q: Given that 1² ex dx = · [²³³ ex dx = e³ - e, use this result to evaluate 3ex +4 dx

A:

Q: A geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and…

A: Speed of the sound in seawater, Echo time,

Q: 4) We have three cables that have current I1 = 7A, I2= 13 A and I3= 5A. Where r= 500 mm, find: a)…

A:

Q: In a long, organic molecule an electron behaves approximately like a quantum particle in a box with…

A: The energy of the quantum particle in a box is given byWhere, is the number of energy levels. is the…

Q: 12. Object A having a mass of 2Kg initially moving toward right at a speed of 5 m/s collides head-on…

A: Mass of an object A,                       The velocity of an object A before collision,…

Q: You are given a spherical mirror and wish to determine its properties. You place an object on its…

A: Given Data:Object distance is Image distance is  [ virtual image so it is taken as negative ]Focal…

Q: How much energy is absorbed when 25.0 g of ice at 0.0°C melts to form water at 0.0°C? The heat of…

A:

Q: Three objects of uniform density-a solid sphere, a solid cylinder, and a hollow cylinder-are placed…

A:

Q: Q2) Assuming E (z, t) = 50cos (210ºt – kz) (V/m) in air, sketch the following waveforms and label…

A:

Q: A 50-g ice cube floats in 220 g of water in a 100-g copper cup; all are at a temperature of 0°C. A…

A:

Q: 1. Refer and use figure 1 and 2. Calculate the magnitude of force needed to displace the block by…

A: The given graph is :

Q: At a rock concert, the engineer decides that the music isn't loud enough. He turns up the amplifiers…

A: Increment in amplitude of sound is Note:Threshold intensity is Find:Change in intensity level.

Q: What is the intensity (in W/m2) of an electromagnetic wave with a peak electric field strength of…

A: The intensity of an electromagnetic wave can be calculated by;Where:permittivity of free space(ε0​)…

Q: What is the self-inductance (in mH) of a solenoid 31.6 cm long having 397 turns of wire and a cross-…

A: The self-inductance (L) of a solenoid can be calculated using the formula:​where:L is the…

Q: Instead of a Tug-of-War competition, two teams are having a "Torque-of-War". Team A is pulling on…

A: Torque is a measure of the force that can cause an object to rotate about an axis.. = torque= forcer…

Q: A radio station utilizes frequencies between commercial AM and FM. What is the frequency (in…

A: Given:wavelength, = 11.23 mWe are Asked to calculate:Frequency of the radio station signals, f = ?

Q: ASK YOUR TEACHER With the installation of noise suppression materials, the noise level in an…

A:

Q: Fach unit on a trail map equals 1 foot. A hiker is at map coordinates (450,700), and the park ranger…

A:

Q: A block of mass m = 2 kg connected to a spring completes one oscillation every three seconds. The…

A: Solution:Given:m = mass of block = 2 kgA = amplitude of oscillation = 3 mT = time period of…

Q: Please answer the following question(s): 1. 30° 30° cm X² The vector OP shown in the figure has a…

A:

Q: A small 1295-kg SUV has a wheelbase of 3.2 m. If 62% of its weight rests on the front wheels, how…

A: GivenA small 1000-kg SUV has a wheelbase of 3.0 m. If 60% of its weight rests on the front wheels,…

Q: Answer only Two questions. Q₁: What are photon properties? Discuss it in detail Q2: Give an example…

A:

Q: A battery of ε = 2.50 V and internal resistance R = 0.500 Ω is driving a motor. The motor is lifting…

A:

Q: A 17.0 cm tall cup is placed 81.1 cm away from the center of a concave mirror with a focal length of…

A: Height of the cup is The cup is placed  away from the center of the mirror.The focal length of the…

Q: A solid cylinder starts from rest at the top of a 23 degree incline. What is the speed (in m/s) of…

A:

Q: REAL DATA ms= SPRING MASS msEFF = ms/3 MASS OF HANGER AND ADDED WEIGHTS m IN EQUATION 1 T 2TT We are…

A: The mass of spring is The effective spring mass is The mass of hanger and added weight is The value…

Q: . Can you help me derive the eqation Vrms = sqrt(3RT/M) This is in terrms of pressure, temperature…

A: To calculate the root mean square speed of the ideal gas.We have to use the ideal gas equation and…

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.