1. Consider a ball of mass 0.050 kg release from 0.85 m height, what velocity does the ball will attain when it hits the floor?

Q: You push on a rectangular door at the location of the knob (see diagram for top view). The door s…

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Q: Where is the 1/4 comes from?

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Q: Determine the height h above the base B at which the resultant of the three forces acts. 230 lb 29"…

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Q: 4. (Ch. 21 Problem 50 in Wolfson) A point charge of -2Q is at the center of a spherical shell of…

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Q: 48 V UT US Езд FIGURE C U t w Uh

A: Required  VOLTAGE ACROSS THE 4 OHM RESISTOR.

Q: An electric heater of power 3 kW is used for 10 h. How much energy does it consume? Express your…

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Q: The angular position of a point on a rotating wheel is given by θ = 3.02 + 7.63t2 + 3.84t3, where θ…

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Q: A proton moving at right angles to a magnetic field of 0.100T travels in a circular orbit of radius…

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Q: A group of students uses an intense white light and a red filter to create bright fringes in a…

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Q: Weight is always equal to normal force. True False

A: The normal force is defined as the force exerted by the surface on the object.

Q: lead is the most common shield against x-ray because of its low density hard of instillation and…

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Q: - Power at which the pump works.

A: Given data; A pump used to lift 600 kg of water from a depth; m= 600 kgh= 50 m t=20 secTake g= 10…

Q: b- Complete the nuclear reactions that are showing below and calculate the kinetic energy of lighter…

A: in this we determine  mine molar mass different between reactant and products. and convert into…

Q: In the expression for calculating the moment of a force about a point o, M, = rx F, r is the vector…

A: Given  Mo = r × F We need to tell about direction of vector Mo The vector Mo is the cross product of…

Q: Determine the resultant R (single equivalent force) of the three forces acting on the simple truss.…

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Q: Your cat, George, is wandering around the house, and intentionally bats at an expensive vase, making…

A: Given, As the vase is drop off of a high shelf, hence the initial speed of the vase is zero. Time, t…

Q: What is the angular momentum of a 0.210 kg ball rotating on the end of a thin string in a circle of…

A: In the given question, Mass of the ball (m) = 0.21kg Radius of the circular path (r) = 1.3m Angular…

Q: Figure shows a four-capacitor arrangement that is connected to a larger circuit at points A and B.…

A: Determine the voltage on C1. Since the capacitors C1 and C2 are connected in parallel, the voltage…

Q: During a very quick stop a car decelerates at 7.4 M/S ^2.Assume the Ford motion of the car…

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

Q: Early clocks relied on a pendulum to keep time. If the pendulum on a grandfather clock is made of a…

A: In this question  we use simple time period equation for pendulum.

Q: For one data trial, you release a water balloon of mass 283 g from the top of a Stanley Hall onto…

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Q: F₂ = 450 N 45° 30° F₁ F3 = 200 N

A: Given,

Q: The sun orbits the center of the Milky Way galaxy for a period of 2.5x10^8 years. (a) Assuming a…

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Q: Somebody is riding a skateboard and holding a wire that is tied to a car.  The wire makes a 17°…

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Q: star in the Andromeda galaxy is found to have a planet orbiting it at an average radius of…

A: Given radius(r)=3.38 x 1010 m Orbital period(T)=5.46 x 104 s

Q: ILT 5.1: TRY THIS ACTIVITY Directions: Construct ray diagrams for lenses by determine graphically…

A: Image formation by lens

Q: A 8.10 kg uniform disk with a radius of 14.3 cm is wrapped with a massless string and is suspending…

A: Draw the schematic diagram of the system.

Q: State two conditions when the

A: Given;  State two conditions when workdone is 0,Where, A body acted upon by a force

Q: Determine the magnitude of the vector difference V' = V₂ -V₁ and the angle 0x which V' makes…

A: The value of θx is 166.64° and the value of V' is 32.89 units

Q: Constants Part A A real heat engine working between heat reservoirs at 940 K and 570 K produces 680…

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Q: In the expression for calculating the moment of a force about a point o, Mo = r x F, r is the vector…

A: M= r×F its cross product where r is any orbitary vector and F force. Here we know dot product…

Q: What is the minimum area the plates of the capacitor may have? Use 8.854x10-12 F/m for the…

A: Given dielectric constant=3.80 Dielectric strength= 1.90 x 107 V/m Capacitance (C)=1.50 x 10-9 F…

Q: Q1) The angular velocity of the radar gun at point O is = 0.2 rad/s when 0-40°, and the radius of…

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Q: If the resistance of the bulb filament at room temperature (20 °C ) is 1.1 Ω, what is the resistance…

A: Write the expression for the final resistance. Here, Ro is the resistance at temperature T1, Rt is…

Q: You push on a rectangular door at the location of the knob (see diagram for top view). The door s…

A: Mass of door, M = 79.2 kg Side-to-side width, x = 1.83 m Distance of knob, r = 0.13 m Force, F = 148…

Q: The power of the machine if it is 100%

A: Given data;  Load,F= 650Nit raises a load through a height of 16 m or, S= 16mTime=4 sCalculate the…

Q: in the position shown? What is the tension T in cable CD? T A 43° D 3.6' C B

A: GivenTAB=70 lb

Q: A 32.0 kg person starts at the center of a frictionless rotating merry-go-round that has a radius of…

A: We solve this problem by applying conservation of angular momentum.

Q: A balloon whose volume is 750m3 is to be filled with hydrogen at atmospheric pressure (1.013…

A: Solution: (a) According to Boyle's law: P1V1=P2V2 Here, P1 is the initial pressure of the gas stored…

Q: A basketball player kicks a hollow basketball up a ramp at 18m/s.  The ramp has an angle of 25° and…

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Q: 2-18 A plane flies for 3 h and reaches a point 600 km north and 800 km east of its starting point.…

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

Q: A diver of mass 75.6 kg stands on one end of a diving board of mass 39.1 kg, as shown in the…

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Q: Q9/ The bandwidth of amplitude modulation (AM) if a sinusoidal signal at 1.5 KHz, ---

A: Given Frequency of modulating signal is fm=1.5 kHz Find the band width of amplitude modulation.

Q: At its peak, a tornado is 68 m in diameter and has 230 km/h winds. What is its frequency in…

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Q: As a member of CSU's golf team, Jesse has access to the golf range on University Avenue for practice…

A: We have a golf ball of mass m=0.05 kg which was at rest (initial velocity u=0) is then hit by a club…

Q: In the shown Figure, the network done by the gas during the close cycle is equal to: P (P₂) 6x104…

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Q: Write the formula of lense and explain the meaning of symbols used.

A: The lens formula is given by :   1v-1u =1f

Q: A Carnot's engine working between 277°C and 27°C produces 100 kJ work. Calculate the heat rejected…

A: Given:-  A Carnot engine  T1 = 277oC and T2 = 27o C  The Work done W = 100 KJ  Find:-  The heat…

Q: A body with mass 5 kg is connected to a spring with K=467 N/m. The system goes into a fluid, which…

A: Given  A body with mass 5 kg is connected to a spring with K=467 N/m. The system goes into a fluid,…

Q: You are looking up at the Moon, which is 3.8 × 10^8 m away from Earth. It is nighttime, and your…

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.