An airplane propeller consists if three radial blades, each of length 1.9 m and a mass 5.1 kg. What is the kinetic energy of this propeller when rotating at 2200 rev/min? Assume that each blade is (approximately) a uniform rod.

Q: A 5-kg disc A is connected to a pin at O by an extensible cord of length 2.00 m. The disc is resting…

A: Given:-   The mass of disc A  is m = 5 kg and it is connected to a pin at O by an extensible cord of…

Q: A plane is heading to LAX with constant acceleration of 60 km/h². At time t = 0, the plane stays…

A: Given:  acceleration = 60 km/h2  At t = 0 , x = 0 km  and v = 0 km/hr

Q: Two 2.60 [kg] balls are attached to the ends of a thin, massless rod of length 75.0 [cm]. The rod…

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Q: Calculate the mass of a solid gold rectangular bar that has dimensions /wh = 5.50 cm x 12.0 cm x…

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Q: A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the…

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Q: A box of negligible mass rests at the left end of a 2.00 m, 29.0 kg plank (Eigure 1). The width of…

A: The length of the plank is L = 2.00m the mass of the plank is m = 29.0kg The width of the box is w =…

Q: A 0.45kg dodge ball is thrown at an opposing player at a velocity of 38 m/s to the right.…

A: Given data:  Mass (m) = 0.45 kg Initial velocity (u) = +38 m/s Final velocity (v) = -28 m/s…

Q: The period of a sound wave is 6.00 ms. Calculate the frequency f of the wave. Calculate the angular…

A: Given data:  Period (T) = 6.00 ms Required: The frequency (f) and angular frequency (ω)

Q: An oscillating mass attached to a horizontal spring glides back and forth along a frictionless…

A: Option C is correct.       X=0

Q: A parallel‑plate capacitor has square plates that have an edge length equal to 9.00×102 cm and are…

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Q: or items 1-3, consider a 450-g ball which hits the horizontal ground and rebounds with the elocities…

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Q: In an antique miniature pocket watch, the second hand (the one that counts the seconds) moves in a…

A: Given data : Length of second hand, r=0.45cm=0.45×10-2m Time taken to complete one revolution, T=60s

Q: he eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are…

A: FORMULA E=nhcλE is energy=3.15×10-14Jn is bumber of photonsh is planck constant=6.626 ×10-34Jsc is…

Q: The electron volt (eV) is a convenient unit of energy for expressing atomic-scale energies. It is…

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Q: Nickel Silver Part 1: Rivets 13 x 10-6 19.5 x 10-6 A silver rivet 1.98 cm in diameter is to be…

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Q: p A 1000 kg sports car accelerates from zero to 25 m/s in 7.5 s. What is the average power delivered…

A: Given data: Mass (m)= 1000 kg Initial velocity (u) = 0 m/s Final velocity (v) = 25 m/s Time (t) =…

Q: The magnetic field in the figure is decreasing at the rate 0.2 T/s. (Figure 1) You may want to…

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Q: How much energy is required to move a 1400 kg object from the Earth's surface to an altitude twice…

A: Given:-  The mass of the object is m = 1400 kg  The object moves Earth's surface to an altitude…

Q: How

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Q: 2) Invent a problem for which the solution is: (0.02 kg)(300 m/s) - (10 N) (0.4 m/s) = (0.02 kg)…

A: Momentum: Momentum is the force necessary to bring an item to a complete stop in a unit of time and…

Q: Assume that the origin goes through the A particle. The three masses are connected by massless,…

A: Length of each rod (L) = 30 cm mass of A = 450 g mass of B = 200 g mass of C = 150 g

Q: 2. A 2 kg object is moving at a speed of 3 m/s. A 4 N force is applied in the direction of the…

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Q: The mass of particle 1 is 11kg. The initial velocity for particle 1 is  (-104m/s)i + (216m/s)j. F21…

A: Given informationF21=Fxe-tTi+Fysin(2πtT)j                  (1)where Fx=16.8 NFy=-106 NT=100sprocess…

Q: In the figure, a solid 0.3 kg ball rolls smoothly from rest (starting at height H = 6.4 m) until it…

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Q: A 0.200-kg object is attached to the end of a 57.0-N/m spring. It is displaced 10.0 cm to the right…

A: Time period of the motion is 0.372 S

Q: Problem I. A 100-mm diameter solid cylinder is 95 mm high and weighing 3.75 N is immersed in a…

A: This question is based on floating of object.

Q: When hot air mixes with cold air to even out the temperature, at the molecular level: A) thermal…

A: To deal with this question, first we should know what is heat.  Heat is a form of energy which gives…

Q: coil of negligible resistance is connected in series with a 90-ohm resistor. This combination is…

A: Given R = 90 Ohm Net voltage V = 120 V Voltage across resistance VR = 36 ohm Frequency f = 50 Hz

Q: jenny learns it may rain tomorrow . she also hears the temperature will be around 16 degrees celsius…

A: what type of precipitation will most likely occur tomorrow ?  Option b        Rain

Q: A steel bolt on a wheel is rotating at 5.00 cycles/s. This bolt is 0.200 m from the axis (centre of…

A: Given data- A steel bolt on a wheel is rotating at 5.00 cycles/s. so angular velocity- ω=5cycless×2π…

Q: Two identical, uniform beams weighing 260 NN each are connected at one end by a frictionless hinge.…

A: Two identical uniform beams weighing 260N each  Angle at the midpoint of beam = 53.00 a) Force does…

Q: The magnetic field in the figure is decreasing at the rate 0.2 T/s. (Eigure 1) You may want to…

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Q: Two 2.50 [kg] balls are attached to the ends of a thin, massless rod of length 72.0 [cm]. The rod…

A: Inelastic collision: Such a collision between two objects, in which some energy is lost, is known as…

Q: The current through inductance L is given by I = Io e-t/T. Express your answer in terms of some,…

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Q: n the figure, Pulley A, rotating at 20 rad/s, controls the motion of Pulley B. The motor of pulley A…

A: Given:-  In the figure Pulley A, rotating at ωA= 20 rad/s, controls the motion of Pulley B. The…

Q: 5.107 A small bead slide without friction on a circu- lar hoop that is in a vertical plane and has a…

A: Given:- A small bead can slide without friction on the circular  hoop The circular hoop is  in a…

Q: The third harmonic of a tube closed at one end is 735 Hz. If the speed of sound in air is 335 m/s,…

A: Write the expression for the frequency in the case of the closed tube. f=nv4L Here, n is the number…

Q: You drill a hole all the way through the Earth, through the geometric center, and then drop your…

A: Given:- You drill a hole all the way through the Earth, through the geometric center, and then…

Q: 10. A boat moves forward when you pull an oar through the water. Which fundamental force of nature…

A: Solution:- A boat moves forward when you pull an oar through the water this is because of Newton's…

Q: A right circular cone is 100mm in diameter and 200mm force is required to push the cone (vertex…

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Q: A piece of wood from an ancient Egyptian tomb is tested for its carbon-14 activity. It is found to…

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Q: Hey boy steps off a dock onto a rowboat if the boys foot applies 20 N Of force against the dock how…

A: Given data:  The force applied by boys foot on the dock (F) = 20 N Required: The force applied by…

Q: A simple harmonic oscillator's velocity is given by vy(t) = (0.710 m/s) sin(12.0t - 5.75). Find the…

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Q: Six, small, identical putty each weighing 2.25 [kg], are placed on the corners of a massless,…

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Q: A string exactly 2 meters long has a mass of 10.0 g and is under a tension of 1 wave in this string…

A: GivenL=2 mm=10 g=10×10-3 kgT=12.5 N

Q: Bar AB has the angular motions shown. Suppose that ωAB = 3.1 rad/s and αAB = 5.6 rad/s2. (a)…

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Q: A 36 lb weight stretches a spring 18 feet. The weight hangs vertically from the spring and a damping…

A: It is given that, the body has a mass of m=36 lb=3632 slug the spring constant is k=3618=2 damping…

Q: In the circuit shown, all six resistors share the same value, R = 5.10. Calculate the equivalent…

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Q: Fig 1, shows a hollow cylindrical conductor of radii a and b which carries a current i uniformly…

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Q: The four masses shown in the diagram are connected by massless, rigid rods. The mass of the A…

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