If you rub silk against wool, you notice they begin to attract each other. Is the amount of charge present in the system after rubbing more than, less than or the same as the amount of charge present in the system before rubbing? Explain

Q: A 3095 kg truck is moving West at 25m/s collides with a 6178kg truck moving North a 9m/s.  If the…

A: A m1 = 3095 kg truck is moving West at v1 = 25m/s collides with a m2 = 6178kg truck moving North a…

Q: ELECTROSTATICS: KQ1Q2 Felectrostatic %3D r2 Using Coulomb's Law, determine how the electrostatic…

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Q: OLVE STEP BY STEP IN DIGITAL FORMAT! PLEASE! A bullet is fired with a horizontal speed of 30 m/s…

A: Given: Speed (u) = 30 m/s Height (h) = 80 m

Q: A mass weighing 50 pounds stretches a spring 6 inches. The mass is initially released from a point 3…

A: In this question we have to find the equation of motion for the given system. Please give positive…

Q: A lemon crate with a weight of 175 N accelerates along a frictionless surface as the crate is pulled…

A: Mass of crate (m) = 175/9.8 = 17.86 kg  Horizontal force Fx = 18×Cos25° = 16.31 N

Q: Vector u is a scalar multiple of vector v . What can be concluded about: a. The dot product of these…

A: Vector u is a scalar multiple of vector v

Q: What is the unit of electric current? Give the name of the unit followed by the units it is made…

A: Unit of electric current is Ampere and it is denoted by ' A ' . Current is given as ,  I = potential…

Q: Q4) Explain briefly the principle of critical angle required for total internal reflection.

A: Total internal reflection (TIR) is the phenomenon that involves the reflection of all the incident…

Q: sources are  6cm apart, and they are in phase. Two paths are  drawn from the sources to a point.…

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Q: The motion of a particle is described by the v-t and a-t curves shown. At what time will the…

A: Given information: The graph of v-t and a-t: From the graph of v-t we can see that the velocity…

Q: What is the purpose of the Reynolds transport theo-

A: Given Purpose of Reynolds therom

Q: The ball of a stationary pendulum has a mass of 1.0 kg and was 3.0 meters below the ceiling and 1.0…

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Q: 5. If 528 kJ of heat are added to 2.5 kg of helium at constant volume process when the initial…

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Q: 2. A proton moves through a magnetic field of magnitude 4.5 T at a speed of 7.08 x 106 m/s…

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Q: The ____________ is the most important layer of the ionosphere for refracting HF radio wave and at…

A: Ionisation is the process in which electrically charged and neutral atoms and molecules gain or lose…

Q: If an external force is operating on a system, is it feasible for it to be relativistic at the same…

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Q: What is the effective horizontal component applied on the box that is being pulled by a 30 N force…

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Q: Problem 10 You live next to two hills spaced 5.0 km apart. These hills act like a single slit for…

A: In this question we have to find how wide is the central area over which we can reliably pick up the…

Q: An object is moved on a horizontal surface by a force of 15 N up to a distance of 10 m. The force of…

A: Given Applied force = F = 15 N friction force = f = 7.5 N Displacement = s = 10 m We have to…

Q: Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point 11.5…

A: Here we use the law of reflection and some basic geometry to solve this problem

Q: Initially, a ball has an angular velocity of 5.0 rad/s counterclockwise. Sometime later, after…

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Q: A body does 12 Joules of work in 2 seconds. What is it's power ?

A: In this question we have to find the power for the work done. Please give positive feedback if the…

Q: square surface with sides of  2 m × 2m is located over the xy-plane, where a constant electric field…

A: Given: The area of the surface is 2 m X 2 m. The magnitude of the electric field is 150 N/C. The…

Q: A 3.79-kg box is thrown vertically downward with a speed of 8.92 m/s from a height of 10.37 m.…

A: Q. Given that Mass of the box m = 3.79 kg Initial speed of the box  v = 8.92 m/s  Initially, the box…

Q: 16. What is the area (in square meters) of the sole of the rubber shoes? - 17. What is the applied…

A: 16. Area under rubber shoes = 290 cm2=290× 1100m2=0.029 m2

Q: Assuming a track with friction, find the thermal energy at Y. Round off to four decimal places.…

A: Total energy at W (Tw) = 80.5986 J  Total energy at Y (Ty) = 13.3378+13.0713  Ty = 26.4091 J

Q: light travels from air to diamond. what is the angle of incidence that would produce a refraction…

A: A) angle of incidence = i angle of refraction (r) = 50o

Q: Motor A pulls the cable at an initial velocity of 10m/s, accelerating at 5m/s^2. Block C moves to…

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Q: A conducting rod with length L = 19.2 cm is being pulled along a long U-shape conductor with…

A: Given: The length of the rod is 19.2 cm. The magnetic field is 30 mT. The speed of the rod is 7.3…

Q: 3. In another process: from 8 kcal, internal energy increased by 12 kcal. 10 kcal of work is also…

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Q: 1042 kg car is moving East at 46 m/s and collides with a 3624 kg truck traveling at 23 m/s in a…

A: mass of car = mc= 1042 kg initial speed of car = Vc= 46 m/s mass of truck = mt= 3624 kg speed = 23…

Q: Physics the interval of time of 5 to 7 seconds the object is moving to the left and has a negative…

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Q: a. If an object is accelerating to the right, the net force on the object must be directed towards…

A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…

Q: A 12.4 uV motorcycle battery that can move 4200 µc of charge, and a 11.0 µV car battery that can…

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Q: An electron beam is directed horizontally into a region where there is both an electric field and a…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: A 12-foot steel bar with 3/8 inch-diameter was stretched to 12 feet and 2 inches. The YM of steel is…

A: 28) strain = change in length per unit length =∆ll=12+212-1212=2144=172=0.01388888889

Q: Compute for the angular speed with the given data: -Radius= 0.6 m Number of revolution = 8 Time= 30…

A: Angular speed is calculated by the ω=2πf f=revSec

Q: Which of the following colors would have a wavelength of 425 nm? O yellow O red green O blue

A: Colour Wavelength (nm)    Violet 400  Blue  450 Cyan 500 Green 550 Yellow 580 Orange 600…

Q: Calculate the critical angle for TIR for heavy flint glass water interface.

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Q: Convert 1000R to K. 555.22 O 541 222.55 O 268

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Q: 7.31 • at the corners of a square whose sides are 8.0 m long in the middle of the gym floor, as…

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Q: A ball was thrown following a projectile motion. If it took 30 seconds for the ball to reach end of…

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Q: Consider holding a heavy chair at arm's length for 3 minutes. At the end of this interval, your arms…

A: we can define work as follows: W=Fd Where,  F is the force W is the work done D is the displacement

Q: The driver of a 2,346 kg pickup truck steps on the accelerator to increase its speed from 39 km/h to…

A: Given Mass of truck = m = 2346 kg Initial velocity = u = 39 km/h Final velocity = v = 50 km/h…

Q: Alternating current oscillates, meaning that the amplitude and direction of the current changes in a…

A: Frequency of AC in usa is 60 Hertz

Q: A negative helium ion would attract additional electrons. O True O False

A: According to the property of electric charge same type of charge repel each other. We also know that…

Q: 3) A car of mass 2000 kg has a driving force of 4500 N and experiences an air resistance of 1500 N.…

A: 3) net forward force = 4500-1500 = 3000 N

Q: n a laboratory, bunsen burner is used to increase the temperature of lime from 10 °C to 50 °C with…

A: Given data as per questionmass  = 20kg energy =  80000J

Q: Water is flowing in a pipe with a circular cross section but with varying cross-sectional area, and…

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Q: Which line/s represent/s constant acceleration?

A: Introduction :- Here four different lines have been shown in the velocity-time graph. We need to…