1- Transformers a- Explain why does the secondary voltage increase when you increase the primary voltage?

Q: Initially, a warehouse worker pushes a 55 [N] box on a flat, rough, horizontal surface just enough…

A: weight of the box, W=mg=55 N mass of box m=Wg=55 N9.8 m/s2=5.612 kg

Q: Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 4.5…

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Q: The net force on an object is in the positive x-direction. Consider the following statements. (i)…

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Q: The diagram shows a cart at four positions as it moves along its track. At which position is the sum…

A: Sum of potential and kintic energy is called total energy, which remains always conserve during this…

Q: Each of the diagrams of atwood's machine below represents two weights connected by a massless string…

A: Summation of External force = Total mass x Acceleration More acceleration is needed for the one…

Q: A ball is released from rest at position 1. The diagram shows the ball in four positions as it rolls…

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Q: A cannon of mass 1 500 kg fires a 10-kg shell with a velocity of 280 m/s at an angle of 55 degrees…

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Q: Q2) Find the value of the capacitive reactance and current through a 100 µ F capacitor when…

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Q: A transverse harmonic wave travels on a rope according to the following expression: y(x,t) =…

A: Given, A transverse harmonic wave travels on a rope according to the following expression : y(x,t) =…

Q: Two 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a…

A: Two 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a…

Q: A worker pushes a sled with a force of 40 N over a level distance of 6.0 m. If a frictional force of…

A: Given data:  Applied force (F) = 40 N Distance (d) = 6.0 m Frictional force (f) = 12 N, in opposite…

Q: In everyday experience, the measures of temperature most often used are Fahrenheit F and Celsius C.…

A: Note: As per the guidelines, we can only answer three subparts of a question. Sorry for the…

Q: What's mu? If p has a unit of [kg/m³), v has a unit of [m/s], D has a unit of [m], and Ris unitless,…

A: Given data:  Unit of ρ = kg/m3  Unit of v = m/s Unit of D = m and R is unit less  R = vDρ/μ…

Q: Two blocks, joined by a string, have masses of 6.0 and 9.0 kg. They rest on a frictionless…

A: The tension in the string between the blocks is 12 N i.e. option (c) is correct.

Q: Place 9 equal point charges on vertices of a degudas no nagon (9-8 ided plygon). a)- what placel at…

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Q: Assume you found a radioactive isotope that has a 1 million year half-life in an "old" bone. If you…

A: Given:half life, T0.5 =  1 million years = 106 yearsat some time t years, bone has 20% parent…

Q: Q1) A sinusoidal AC has a maximum value of 15A. What are its RMS values? If the time is recorded…

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Q: While watching the clouds pass by, you notice a European swallow flying horizontally at a height of…

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

Q: Examine the following position time graph: time The graph shows an object's velocity is constant and…

A: Given Information We have to examine the given position time graph

Q: The acceleration of a particle is directly proportional to the applied force acting on the particle.…

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Q: Part A The sledder shown in (Figure 1) starts from the top of a frictionless hill and slides down…

A: Given data as per question  h1  =  4.2m h2    =  5.9m

Q: Hooke's law spring is compressed 18.0 cm from equilibrium and the potential energy stored is 72.0 J.…

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Q: Trachecktory. Two cannonballs, aptly named a and B, were launched on level ground. a was launched…

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Q: Calculate the total binding energy, and the binding energy per nucleon, for Pt. The mass of the atom…

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Q: The velocity (in feet/second) of a projectile t seconds after it is launched from a height of 10…

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Q: A crate of mass 85 kg is pushed along a floor with a force of 30 N for a distance of 9 m. Calculate…

A: Given data:   Mass (m) = 85 kg Force (F) = 30 N Distance (d) = 9 m Needed: The work done (W)

Q: An object in equilibrium must not have

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Q: A small block of mass M is released from rest at the top of the curved frictionless ramp shown in…

A: Initial speed of M = 3.50 msmass of larger block = 1.5 M initial velocity of larger block = 0…

Q: weight of the student on the Moon

A: Weight of student on EARTH = 520 N Mass of student on EARTH = 520/10 = 52 kg Now if this student go…

Q: What is the resistivity of a piece of iron wire with length of 35 centimeters, 3 points cross…

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Q: A car travelling at 4 m/s acceleration uniformly the car travels 150 meters in 26 seconds, Find the…

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Q: Find the value of the capacitive reactance and current through a 100 µ F capacitor when connected to…

A: Given data:   Capacitance (C) = 100 μF = 100×10-6 F Voltage (V) = 24 V Frequency (f) = 50 Hz…

Q: Samantha pushes a 50-N crate up a ramp 25.0 m in length and inclined at 20° with the horizontal.…

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Q: Two clay lumps of the same masses and speed are moving at opposite direction. What will happen to…

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Q: A ray of light is incident on the air - ice boundary at an angle of 40° with the normal. Part of the…

A: Given: Angle of reflection = 40°  Refractive index of ice = nice= 1.309

Q: tors in a. and b. and its direction using

A: We know that  two vectors a and b are given as  a→ = 50 N  N30°Eb→= 30 N    W15°S Find:-  The…

Q: Which of the following statement is NOT true in a uniform circular motion   Kinetic Energy is…

A: Correct option is  4. Direction is constant .

Q: Look at the picture below. At which point will the roller coaster have the greatest amount of…

A: Potential energy at height h is given by        U = mgh So the highest point will have greatest…

Q: A heat engine operates at 48% of its maximum theoretical (Carnot) efficiency. If the temperature of…

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Q: A 15.0 kg load of groceries is lifted up from the first floor to the fifth floor of an apartment…

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Q: Compute the energy consumed by a 13-W compact fluorescent bulb burning for 1.0 h, and compare it to…

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Q: Mark is trying to rescue Mary from a castle by climbing a uniform ladder that is 5 m long and weighs…

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Q: As a pendulum swings back and forth   at the end points of its swing, its energy is all potential.…

A: Answer:- (5) all the above   As a pendulum moves it sweeps back and forth in a circular arc. One…

Q: 6. If h goes to the right through Ri, k goes to the right through R2, and a goes to the right…

A: It is given that, I1 goes to the right through R₁, I2 goes to the right through R₂, and I3 goes to…

Q: A capacitor consists of two parallel plates, each with an area of 14.1 cm2, separated by a distance…

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Q: The water passing over Victoria falls, located along the Zambezi River on the border of Zimbabwe and…

A: Height from which water falls, h=105 m g=9.81 m/s2

Q: Jinky Pacquiao's second hand on an LV watch has a length of 4.50 mm and makes one revolution in…

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Q: What is the fractional change in the resistance o R-R. Ro

A: GivenT1=20.2°CT2=51.2°C

Q: n hydrogen, the transition from level 2 to level 1 has a rest wavelength of 121.6 nm. Find the speed…

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Q: What is Law of Conservation of Mechanical Energy?

A: According to conservation of energy Total energy of isolated system remains constant.

Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.