2nd question: give an example of a process with negative work why is work negative in your example?

Q: MY NOTES As shown below, two forces are acting on a door (the hinge is the dark circle on the end).…

A: Given Length of the door = 1.5 m Distance between FA and FB  = 0.2 m θ = 5 Degrees To find out  The…

Q: A 10 m ladder with a mass of 15 kg leans against the wall. If the ladder is in static equilibrium,…

A: We have a ladder of length L=10 m having mass M=15 kg which leans on a frictionless wall. Assuming…

Q: 1. A baseball of mass 0.450kg is thrown at a velocity of 40 m/s [S]. A batter strikes the ball for…

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Q: Refer to the illustration a. What is the equivalent resistance of the circuit? b. What is the…

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Q: An atom of an element consists one proton and an electron. The charge of a proton is 1.6020x10-19 C…

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Q: What is the force exerted on a 3.5 m length of wire carrying 6.0 A of current through a magnetic…

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Q: If we had 24A of current running through a series system when an additional resistance is added,…

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Q: The system in Figure is in equilibrium with the string in the centre exactly horizontal. T₁35° 0 T3…

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Q: A simple pendulum is made from a 0.621-m-long string and a small ball attached to its free end. The…

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Q: Which of the following statements describes the electric fields shown below? A two positive fields…

A: An electric field is a fundamental natural phenomenon produced by charged atomic and subatomic…

Q: If acceleration due to gravity is 12 m/s², what will be the potential energy of a body of mass 2 kg…

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Q: 4. A 135 m long transmission wire is stretched between two vertical posts. It carries of a current…

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Q: Mercury is commonly supplied in flasks containing 34.5 kg (about 76 lb). What is the volume in…

A: Given, mass of the mercury,  = 34.5 kg

Q: CURRENT AND RESISTANCE Problem 1. A piece of 1 4-gauge copper wire 0. 163cm in diameter is 1 4.0m…

A: Given  Diameter of copper wire d = 0.163 cm Length of copper wire L = 14.0 m Resistivity of wire  p…

Q: Two smooth reflecting surfaces (A and B) are perpendicular to each other. Light strikes surface A at…

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Q: 1. A loaded elevator, 2200 kg, supported by cables that can withstand a maximum tension of 28,000 N…

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Q: 2. A 60kg skateboarder is initially at rest on top of a 8kg skateboard. The skateboarder then steps…

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Q: A basketball player made a shot,the ball was released from the player hand at t=0 sec with initial…

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Q: Calculate the wavelength (in nm) of light that has its seventh minimum at an angle of 30.0° when…

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Q: A long wire is connected to the terminals of a battery. In 8 s, 9.6 x 10^20 electrons pass a cross…

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Q: Charge q1 = -10 nC is located at the point (x = 0 cm, y = 3 cm), and a second charge, q2 = 10 nC is…

A: Disclaimer:“Since you have asked multiple question, we will solve the first question for you. If you…

Q: The power delivered to an AC circuit is maximum when the power factor phase factor resonance ratio…

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Q: The charges and coordinates of two charged particles held fixed in an xy plane are q₁ = 2.24 μC, x₁…

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

Q: 1..what is corona phenomena? 2..what are the effects of corona? 3..what are the ways to raduce…

A: 1. Corona phenomena is basically ionization of surrounding air around the conductor which produces…

Q: r = 10 Ω • r = 20 Ω Mi F 8 = 18 V 8 = 12V R=66 Ω

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Q: please take in mind the 3rd significant digit

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Q: Suppose an electron (q=e= -1.6× 10-19 C,m=9.1 x 10-31 kg) is accelerated from rest through a…

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Q: A 22.0 V battery moves 7.6 KC of charge. How much energy does the battery deliver? A 2.9 x 10-³ J B…

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Q: A series RLC circuit attached to a 120 V/60 Hz power line draws 3.30 A of current with a power…

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Q: An unstable particle of mass 15 [kg] moving with velocity 8/17 decays into a stable particle and a…

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Q: Illustrate a free-body diagram of cellphone sliding through a book slanted at 45°.

A: Free body diagram helps us to analyse the forces acting on the body. It gives pictorial…

Q: Calculate the total resistance of the circuit shown below. Show your work. 31 Ω 27 Ω

A: R1 = 27 ohm R2 = 31 ohm arrangement type : parallel

Q: A tube with a cap on one end, but open at the other end, has a fundamental frequency of 131.2 Hz.…

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Q: 1. Solve analytically the resultant and equilibrant of the following vectors using component method:…

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Q: ition of Energy. Refer to Sample Problems 14-17 in your Handout] 1. The roller coaster shown below…

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Q: 1. Mario throws a stone vertically upward with a speed of 25m/s from the top of a tower 75 m high.…

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Q: A 0.005 kg of bullet is fired horizontally and hits an-8kg block of wood (initially at rest) which…

A: Let the initial velocity of the bullet is v Initial linear momentum of the bullet is 0.005v Initial…

Q: What is the frequency of lig must be absorbed by a hy atom for its electron to iun

A: Givenn1=2n2=3

Q: A person 1.5 m tall stands 4.0 m from a convex mirror and notices that he looks precisely half as…

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Q: A person pushes a lawnmower horizontally for 8.50 m by applying a force of 125 N along with the…

A: Given data:  Distance (d) = 8.50 m Force (F) = 125 N Angle (θ) = 36.0° Required: The work done (W)

Q: 40 Ω Μ 18.00 80 V 30 Ω b f h r= 6= ΤΩ 45V www. c ΤΩ Μ • 20 Ω

A: We have a circuit with two batteries of EMF E1=80 V and E2=45 V with internal resistances r1=r2=1 oh…

Q: Why does a child in a wagon seem to fall back when you give the wagon a sharp full forward? Explain…

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Q: 2. Polonium 218 has a half life of 3.0 minutes. If you begin with 120. grams of it, how long will it…

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Q: 5. A projectile with an initial velocity of 180 km/h hits the ground 180 m away from the starting…

A: Given: Initial velocity (u) = 180 km/h or 50 m/s Horizontal Range (R)=180 m Total time of flight (t)…

Q: n object that is 33 cm in front of a convex mirror has an image located 16 cm behind the mirror. How…

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Q: Periodic motion must be simple harmonic motion. Ture OR Fale

A: Given: Periodic motion must be simple harmonic motion.

Q: A hoop is rolling without slipping along a horizontal surface with a forward speed of 5.50 m/s when…

A: Given, initial speed of the hoop, v = 5.50 ms angle of inclination, θ= 25.0° distance traveled along…

Q: A sealed beaker contains 100 g of water that's initially at 20° C. If the water absorbs 100 kJ of…

A: Given, mass of the water, m = 100 g initial temperature of water, Ti = 20 °C Heat absorbs, Q = 100…

Q: Resistors in Series and in Parallel

A: Series resistor propertiesAny time we have more than one resistor in a row, the configuration is…

Q: The roller coaster car has a mass of 700 kg, including its passenger. If it starts from the top of…

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