1 3/2 2, (r) -7/2a, (41.26) 4V2 \4o

Q: As shown, the rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed υ = 3....

A: Hey, since there is multiple subpart question posted, we will answer first three questions. If you w...

Q: (a) What is the order of magnitude of the number of micro organisms in the human intestinal tract? A...

A: a. A typical bacterial length scale is 10^-6 m . Assume that a typical intestinal tract has a length...

Q: Explain Apparent Weight and Apparent Weightlessness.

A: Apparent weight :  The apparent weight of an object from the weight of an object whenever the force ...

Q: A small insect viewed through a convex lens is 1.8 cm from thelens and appears 2.5 times larger than...

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Q: A heat engine extracts 55 kJ from the hot reservoir and exhausts 40 kJ into the cold reservoir. What...

A: a) The thermal efficiency of a heat engine is given by, Considers the conservation of energy,

Q: Image shows the position graph of a car traveling on a straight road. At which labeled instant is th...

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Q: A 100-W lightbulb connected to a 120-V source experiences a voltage surge that produces 140 V for a ...

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Q: A heat engine operating between energy reservoirs at 20°C and 600°C has 30% of the maximum possible ...

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Q: Four objects move with the velocity-versus-time graphs shown. Which object has the largest displacem...

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Q: The velocity-versus-time graph for the vertical jump of a green leafhopper, a small insect, is shown...

A: Given data The initial time is, t1=0 The final time is, t2=5 ms The initial speed is, vy1=0.0 m/s Th...

Q: You are driving down the road at a constant speed. Another car going a bit faster catches up with yo...

A: Sketch a position graph, for the two cars of which you are driving a car at constant speed and anoth...

Q: A cyclist pedals for 20 min at a speed of 15 km/h. How much metabolic energy is required? How much e...

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Q: (I) A particle at is at and at t1=-2.0 s is at x1=4.8cm and at t2=4.5 s is at x2 = 8.5 cm. What is i...

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Q: You hold a shiny tablespoon at arm’s length and look at thefront side of the spoon. (a) Is the image...

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Q: The lower part of the platform, whose vertical section is seen in the figure, is bent in the form of...

A: Given: The figure of an inclined platform with circular rail at the bottom is given. h is the height...

Q: A proton is projected in the positive x direction into a region of uniform electric field E = (-5.10...

A: Given Data *The given uniform electric field is E = (-5.10 × 105) I N/C *The proton travels distance...

Q: When a cylindrical capacitor is given a charge of 0.500 nC, a potential difference of 20.0 V is meas...

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Q: An object has the acceleration graph shown. Its velocity at t = 0 s is νx = 2.0 m/s. Draw the object...

A: The acceleration time graph is given, and at t= 0s the initial velocity vx = u= 2 m/s. Now at t=0s, ...

Q: Image shows an object’s position-versus-time graph. What is the velocity ofthe object at t = 6 s?A. ...

A: Given: position - time graph at t =0, S = 5 m at t =10 s, S = 38 m

Q: Describe about General relationship for kinetic energy and potential energy.

A: Kinetic energy (KE) is the capacity of a body or system to do work because of its motion. Consider m...

Q: In an 8.00 km race, one runner runs at a steady 11.0 km/h and another runs at 14.0 km/h. How far fro...

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Q: A Saturn V rocket is launched straight up with a constant acceleration of 18 m/s2. After 150 s, how ...

A: Given data: The acceleration of rocket is: a = 18 m/s2 The gravity acceleration is: g = 9.81 m/s2 Th...

Q: A baseball player is taking batting practice. He hits two successive pitches at different angles but...

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Q: (a) Show that the function y(x, t) = x2 + υ2t2 is a solution to the wave equation. (b) Show that the...

A: The solution of the wave function can be written as, Here, v is the velocity, t is the time, x is t...

Q: A cyclist is at rest at a traffic light. When the light turns green, he begins accelerating at 1.2 m...

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Q: In a soccer free kick, a player kicks a stationary ball toward the goal that is 18 m away. He kicks ...

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Q: A lobsterman’s buoy is a solid wooden cylinder of radius r and mass M. It is weighted at one end so ...

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Q: A sinusoidal wave in a string is described by the wave function                                    y...

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Q: A heat engine does 20 J of work while exhausting 30 J of waste heat. What is the engine’s efficiency...

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Q: A truck driver has a shipment of apples to deliver to a destination 440 miles away. The trip usually...

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Q: A Porsche challenges a Honda to a 400 m race. Because the Porsche’s acceleration of 3.5 m/s2 is larg...

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Q: When light is incident normally on the interface between two transparent optical media, the intensit...

A: Given data: The index of refraction of air is: n1 = 1 The index of refraction of crown glass is: n2 ...

Q: Your friend Travis claims to have set the new world speed record for riding a unicycle. His top spee...

A: Speed of bicycle = 55 m/s

Q: Consider an electron, a proton, and an alpha particle (a helium nucleus), each trapped separately in...

A: (i) The mathematical formulation for the energy in a box is given as, Here, h is the Planck's const...

Q: A hypnotist's watch hanging from a chain swings back and forth every 0.37 s. What is the frequency (...

A: Given data The time period of swing is given as T = 0.37 s. The mathematical formulation to calculat...

Q: A 75 W incandescent bulb and a 15 W compact fluorescent bulb, as shown, each produce 3.0 W of visibl...

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Q: Flapping flight is very energy intensive. A wind tunnel test on an 89 g starling showed that the bir...

A: Write the given values, and determine the energy released by the bird.

Q: While running a marathon, a long-distance runner uses a stopwatch to time herself over a distance of...

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Q: A quartz crystal vibrates with a frequency of 71,621 Hz. What is the period of the crystal's motion?...

A: Time period

Q: Is the formula dimensionally correct? vf =(v1 + v2)/2

A: The unit of the velocity is m/s, therefore the dimensional formula of the velocity is [LT-1]. Here t...

Q: .• A postal employee drives a delivery truck along the route shown in Fig. E1.21D. Determine the mag...

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Q: It was reported in World War I that a pilot flying at an altitude of 2 km caught in his bare hands a...

A: It is physically possible for this to happen. Suppose the bullet was shot from a position below the ...

Q: (a) Show that the proton-decay p → e+ + γ cannot occur because it violates the conservation of baryo...

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: