An athlete lifts a 410 N set of weights from ground level to a position over her head, a vertical distance of 1.90 m. How much work (in J) does the athlete do? Assume the weights are moved at constant speed.    J

Q: . What is the magnitude and direction of the force exerted on a 3.50 µC charge by a 250 N/C electric…

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Q: A hockey puck (5g) slides horizontally without friction across the ice from position A to E. Draw…

A: We are given the hockey puck which is sliding on horizontal without any friction. Thus there will no…

Q: An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature, 300 The mean time…

A: We know that the mean time between the two successive collisions is proportional to the volume and…

Q: Three point charges q1, q2 and q3 are to be moved from their initial position as seen below, to…

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Q: 2. A 0.15 kg ball is attached to a 0.5 m long string and is being rotated in a horizontal circle…

A: The rotating equivalent of linear momentum is angular momentum. Angular momentum is equal to the…

Q: Find the moment of inertia of a disk with a radius of 0.5 m and a mass of 0.5 kg when rotated about…

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Q: (b) On a day with no wind, a large object is dropped from a tall building. The object experiences…

A: When a large object is dropped from a tall building then due to gravity the object falls to ground.…

Q: You can see that you are in a rocket which has just taken off from the surface of an alien planet.…

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Q: If you do 29 J of work in 2.1 seconds, how much power was generated? Round to the hundredths place…

A: Given  Work done (w)  = 29 J  Time taken ( t ) = 2.1 s   Power is definined as rate of work done .…

Q: PLEASE KINDLY SHOW A SOLUTION. THANK YOU 3.) Determine the amount of charge stored on either plate…

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Q: A sandwich board advertising sign is constructed as shown in Figure 5.39. Its mass is 7.80 kg.…

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Q: 1. Calculate the magnitude of electric force between an iron nucleus ( 26 protons having a charge of…

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Q: A factory worker drops a 10 kg steel block from rest (m=10). The block then falls 30 cm onto a…

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Q: Two parallel wires separated by 4.35 cm repel each other with a force per unit length of 1.80 x 104…

A: Given that                    The separation between the two parallel wire is (d) = 4.35cm = 0.0435m…

Q: Calculate the work needed to lift a 20 kg sack of rice vertically at 6.5 m ?

A: Given data :        Acceleration due to gravity =  g         Mass  =  m        Height  =  h…

Q: The following figure shows a Ferris wheel that rotates 5 times each minute and has a diameter of 25…

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Q: III. Answer the following questions briefly. Imagine a van that is moving at a speed of 80kph and a…

A: The momentum of a body is given by p = mv, where m = the mass of the body v = velocity of the body…

Q: Find the moment of inertia of a rod with a mass of 0.5 kg and a length of 0.75 m when rotated about…

A: Given data:  A rod Mass (m) = 0.5 kg Length (L) = 0.75 m Required: The moment of inertia about its…

Q: If The pot emtial aliffeee nce The t electric motor 18 245V m ebectric flowing.hro uth whnt wilh oe…

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Q: 1) If A = 3a, -4a, and B=5a, +2az. Find the vector component of A in the direction of B.

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Q: A hollow, conducting sphere with an outer radius of 0.260 m and an inner radius of 0.200 m has a…

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Q: A block kept on a rough inclined plane, as shown in the figure, remains at rest up to a maximum…

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Q: A solenoid is used to create a 27.0 mT magnetic field at its center. It has a radius of 1.40 cm and…

A: As per our guidelines we will solve first three subparts for you. To get remaining subparts solved…

Q: A 200 Q resistor is connected in series with a 4.00 µF capacitor and an ac source. The voltage…

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Q: 1. An iron plate 2cm thick has a cross-sectional area of 5000cm?. One face is at 150°C, and the…

A: Given  Thickness of plate (L ) = 2 cm                                           = 0.02 m   Area of…

Q: Solve the magnitude and direction of the force on Q, e- 70uc 60 55 cm 30 45 cm O2 = 80ut Q--40uC 30…

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Q: A camera with a 96.6-mm focal length lens is being used to photograph the Sun. What is the image…

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Q: A particle is moving wit y = bVx along positive x Calculate the speed of t particle at time.t = Tt…

A: GivenSpeed of particle, y=bx

Q: Why refrigerator is an electromagnetism?

A: Why refrigerator is an electromagnetism?

Q: tant is measured to be 24.0 μs . 1) Calculate the time it takes for the vo

A: We know that the formula of the voltage with the time constant is given as  V = V01-e-tτ ----- eq1…

Q: For the pair of vectors, find U + V, U − V, and 4U + 2V. U = −9i + 9j, V = 9i + 9j

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Q: An ideal gas is enclosed in a cylinder at pressure of 2 atm and temperature, 300 K. The mean time…

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Q: Which of the following is not true regarding electric potential? A. When a positive charge moves…

A: Which of the following is not true regarding electric potential?

Q: 1. Two long straight wires 750 mm apart deliver a steady current of 50.0 A to a motor. Find the…

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Q: A Plano-convex lens (focal length f2 refractive index µ2 radius of curvature R) fits exactly into a…

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Q: Two particles move at right angle to each other. Their de Broglie wavelengths are A1 and 12…

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Q: Find the moment of inertia of a hoop with a radius of 0.5 m and a mass of 0.5 kg when rotated about…

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Q: 1. Determine the force attraction between charge Q1 and Q3. 2. Determine the electric field…

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Q: Two particles move at right angle to each other. Their de Broglie wavelengths are A1 and 12…

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Q: A 200 Q resistor has a certain colour code. If one replaces the red colour by green in the code, the…

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Q: A hoop is being rotated about its diameter. It has a radius of 0.25 m and a mass of 0.12 kg. It is…

A: Given data:  A hoop rotated about its diameter Radius (R) = 0.25 m Mass (M) = 0.12 kg Angular…

Q: While flying at an altitude of 9.25 km, you look out the window at various objects on the ground. If…

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Q: Find the moment of inertia of a solid cylinder with a mass of 0.5 kg, a radius of 0.5 m, and a…

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Q: In exercise physiology studies, it is sometimes important to determine the location of a person's…

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Q: If a 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature?

A: Givenn=4 molesP=5.6 atmV=12 L

Q: 1) You will notice that most laser pointers exude a reddish hue. These laser pointers use a mix of…

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Q: Light of an unknown wavelength is incident on two slits separated by 0.08 mm. The second bright…

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Q: Red Orange Yellow Green Blue Violet Medium (660 nm) (610 nm) (580 nm) (550 nm) (470 nm) (410 nm)…

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Q: Activity 2 A small particle has charge - 5. 00 uC and mass 2.00 x 10 kg. It moves from point A,…

A: charge (q) = -5 μC mass (m) = 2×10-4 kg VA = +200 volts VB = +800 volts speed of particle at A = 5…

Q: Voltage rating of a parallel plate capacitor is 500 V. Its dielectric can withstand a maximum…

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.