A particle of mass m is released on the side of a semicircular track that points downward. The radius of the semicircular track is R. Using Newton’s second law in polar coordinates, determine how long it will take the particle to come back to the point of release.

Q: A hot reservoir at 170°C transfers 400 kJ of heat to a cold resevoir at 500 C. What is the total cha...

A: Temperature of the hot reservoir, TH = 170 °C = 443 K Temperature of cold reservoir, TC = 50 °C = 32...

Q: What is the frequency of a 0.68 m wave that is traveling through steel (v = 3150 m/s)

A:

Q: Light having a wavelength of 460 nm ismcident on a cathode, and electrons are emitted from the metal...

A:

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

A:

Q: What was the displacement of the train after 10 seconds? What is its acceleration in the last 5 sec...

A: This question is based on Motion in a straight line topic. Area under the velocity-time graph gives ...

Q: On a windy day, a camper feels colder as compared to a day at the same temperature when there is no ...

A: We need to comment on the major mechanism of heat transfer in the situation described in the problem...

Q: As shown in the right figure, a collimated light beam with intensity of I, = 100(W/m²) passes throug...

A: We know that here in the figure we have given that A collimated light beam intensity of I0 and it  p...

Q: 2.17 The critical angle for total internal reflection in a certain sub- stance is exactly 45 degrees...

A: Given that:- Critical angle=45°

Q: You wish to prepare an ice less cold drink by mixing 100g of green coffee at 67 °C and 18 g of ice a...

A:

Q: Question 4. A 0.500 m long brass pipe open at both ends has a fundamental frequency of 350 Hz. (a) D...

A: In this question we have to find the temperature and the frequency of the pipe. Please give positive...

Q: What ie The woltige of a 88 ohm& resjetor That hae 0.0 260 A of current flowing Though The Ferminals...

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

Q: A car with a total mass of 1000 kg has four wheels, each of 10 kg. When the car is moving (rolling w...

A: Kinetic energy of car =12Mcarv2 kinetic energy of four wheels =4×12Iwheelω2

Q: As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough pat...

A: Given Mass of object (m) = 2.25 kglength of rough patch (s) = 15.0 cm = 0.150 mμk = 0.690.velocity a...

Q: A particle with positive charge a- 4.19x 10 1 C moves with a velocity v- (4i + 4j - k) m/s through a...

A:

Q: 5.00 moles of Argon, a monatomic ideal gas, occupies a volume of 15.0 L at a pressure equal to 1.4 x...

A:

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 ...

A:

Q: What is the electric potential at point P in the diagram below? P +7q -3q

A: Given data:  Two charges  Q1 = +7q and Q2 = -3q Distance from point P = r Required: The electric pot...

Q: car moves in a straight line such that for a short time its velocity is defined by v = (2t^3 + 3 t) ...

A:

Q: A small object carrying a charge of -8.00 nC is acted upon by a downward force of 20.0 nN when place...

A: This question is based on Electrostatic topic. The force experienced by a charged particle in an ext...

Q: Two spheres 5 mm apart are placed with equal number of electrons to produce a repulsive force of 40...

A:

Q: QUESTION 21 During an adiabatic process a. the pressure and temperature both vary, but the volume re...

A:

Q: Scientists reporting their results usually specify a range of values that they expect this 'true val...

A: This question is based on Units and Measurement topic. True value is the actual value of the physica...

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...

A:

Q: 2. Using your expression from step copper ion film.

A: Given, There are 6.022×10^23 charge carrier in one mole of electron

Q: Describe the opposition to the flow of charge carries by resistors, capacitors, inductors

A: In this question we have to describe the opposition to the flow of charge carriers by resistors, cap...

Q: Two very small spheres are initially neutral and separated by a distance of 0.668 m. Suppose that 8....

A: Given:r=0.668 mn = 8.87*1013 electrons charge on sphere 1 q1=+ne = 8.87*1013*1.6*10-19 Cq1=+1.419*10...

Q: Just like Louis, Maria left a book on the roof of her car before driving away. The mass of the book ...

A: Given, mass of the book, m = 725 gm coefficient of static friction between the book and the roof was...

Q: An object moves on a horizontal coordinate line. Its directed distance s from the origin at the end ...

A:

Q: John does 176 J of work lifting himself 0.300 m. What is John's mass? Find the work done by a 2.0 kg...

A: Given Data : John does 176 J of work lifting himself 0.300 m. What is John's mass? Find the work do...

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

A:

Q: An isolated sphere 10 cm in radius is charged to 500 V. A second isolated but uncharged sphere of 5...

A:

Q: A car is movingg stoight road at con a 18 m/s it is will be decelerution at 8 m/s what its velocity ...

A: Given data :              Initial velocity = U             Acceleration = a              Time =  t  ...

Q: 1) An acoustic source is placed in deep water (assume there are no boundaries) and its source level ...

A: Given TS = - 5dB  detection threshold =3dB We have to find the source level be in dB that is 52 db

Q: A uniform electric field of magnitude 277V/m is directly in the positive x-direction. A 1.33E-5C cha...

A:

Q: A cube with side length a = 80 cm and made out of concrete ( density of 1.8 · 10 kg/m³ ) should be t...

A:

Q: Solar radiation (irradiance) was measured on a horizontal surface, GH = 564 W/m2. What would the irr...

A:

Q: The figure below shows two long, parallel wires in cross-section, and the currents they carry are di...

A:

Q: 1 Solve for the unknown(s). You may assume t; = 0. a. ř; = 2.45mi řf = 4.18mi v; = 1.04mi ā = 0.510i...

A:

Q: Each of the following vectors is given in terms of its xx- and yy-components.

A: According to question we need to find--- magnitude  direction 

Q: during rubbing, a body obtained a negative charge. if during the process, electrons transferred from...

A:

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

A: Motion of projectile can be divided into x component and y component. 

Q: An archer aims directly at an apple attached to a tree branch a horizontal distance d away and a ver...

A: Motion of projectile can be divided into x component and y component.  To prove arrow always hits th...

Q: Determine an expression for the velocity vA of the cart A down the incline in terms of the upward ve...

A: Given-h=1.93mx=3.09mVB=3.14m/sVA=?

Q: alculate much net Work per unit charge would it take to move a particle from a -15 V potential to a ...

A: Given that                Let VA & VB  be the potential at A and B. Then                  VA = -...

Q: The car moves in a straight line such that for a short time its velocity is defined by v = (2t^3 + 3...

A: Given value---  v = (2t^3 + 3 t) m/s. We have to find--- a. What is its position in meters when t...

Q: A dust particle of charge, q, and mass, m, is initially at rest in a uniform electric field with str...

A:

Q: Question 2. A fire truck travels at a speed of 80.0 km/h with its siren emitting sound at a frequenc...

A:

Q: Q:/ Prove that F = -KTlnz .

A:

Q: How are Christmas lights connected?

A: As per Bartleby Guidelines, we are allowed to answer only one question. Since you have asked multipl...