A 9 kg block is on a frictionless table and is moving at 21 m/s around in a circle that has a radius of 9 m. The block is attached to a string that passes through a hole at the circle center. A ball is attached to the other end of the string and is hanging in the air. Assuming the ball is stationary, determine the ball's mass. Side view Top view mball =

Q: Take a boat with a mass of 1.5 kg and lift it to a height of 2m. Compute the amount of work done.

A: Given:Mass,m=1.5 kgHeight,h=2mGravitational acceleration,g=9.81 m/s2Now,Work done,wW=Fdcosθ…

Q: Q2: The boat in Fig.2 is traveling at 40km/h. The rope to tow the parasail is 150m long. At the…

A: Given: Initial velocity of boat is 40 km/h Length of the rope to parasail is 150 meters At t=0…

Q: One model for the potential energy of a two-atom molecule, where the atoms are separated by a…

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Q: How much work must be done on the particle by the external agent? (in J)

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Q: (a) What is the available energy content, in joules, of a battery that operates a 1.3 W electric…

A: Part (a) Calculation:Time in seconds=21×30.44×24×3600=55,209,600 seconds…

Q: (Prob. 1,8 A heavy rope, 10 m long, weighs 0.5 N/m and hangs over the edge of a building 100 m high.…

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Q: Discuss what happens when a man fires a pistol in front of a flight of stairs in a large hall.

A: There will be an extended-pulse echo produced.

Q: which is more tiring, running or walking in the stairs? explain

A: Given : Which is more tiring running or walking in the stairs ?

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A: We know that The gravitational potential energy at the surface of the earth is U = MgR U/M = gR Here…

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A: Given, time= x-axis= 5ms/div Red dot=5.3 div  Green dot=8div 1 hashmark=0.2 div

Q: How much work is done lifting a 20 pound object from the ground to the top of a 50 foot building if…

A: Weight = 20 pounds Weight per foot = 2.5 lb/ft Height = 50 ft Workdone, W = ?

Q: To bring a very big ship to a stop,  its engines are typically cut off about 25 kms from port. Why?

A: A very big ship has an enormous large amount of   mass , due to  this   its momentum will be very…

Q: what is a perpetual bike?

A: The word perpetual means never ending or changing , it also means continuously repeating. The…

Q: A satellite from the Glonass navigation system weighs 7,350 N on the surface of Earth. How much work…

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Q: Please refer to the red box.  Why did they square the values for A and B? Why is it raised to 1/2?

A: To answer this question we have to be aware of dot product and magnitude formula

Q: As we’ve seen, the sun’s energy comes from fusion reactions that combine four hydrogen atoms to…

A: As from the give data, four hydrogen atoms combine to produce a single helium atom.  The reaction is…

Q: Now, solve the equation for w in inverse-seconds or radians/sec. (Remember: a radian equals one.) As…

A: Given that------ m = 200 grams Yo (equilibrium value) = 9 cm  k= (spring constant) = 0.05 N/cm…

Q: (1) If the input voltage is 480 v and the voltage drop is 1.75, what is the output voltage? (2) If…

A: (a) The input voltage or EMF offered, E=480 V potential drop ,v'=1.75 V  then, the output voltage ,…

Q: What is the difference between when work is done by a system and when work is done on a system

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Q: ?Where it happen was do did

A: Did is used as helping verb and always followed by first form of main verb.

Q: (c) Show Force on a negative charge BO O q<0€

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

Q: Discuss 10 practical ways by which energy can be conserved

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A: Consider that US population at this moment is 328.2 million. If each of them has a weight of 600N,…

Q: (1) Suppose you lift a stone that has a mass of 5.5 kilograms off the floor onto a shelf that is 1.5…

A: Given data:  Mass (m) = 5.5 kg Height (h) = 1.5 m Required: The work done (W)

Q: A lunar module weighs 12 metric tons on the surface of the Earth. How much work is done in…

A: Given the mass of the module on earth m=12000 Kg This mass remains same at moon too. The work done…

Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…

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Q: this is a 23 watt energy efficient light bulb (1bulb) which cost 6.00.the retail price of…

A: The energy consumed by a device is given by E = P×t, where P = the power of the device t = time

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Q: (a) Compute the electrical energy used by a household whose monthly electrical bill is $34, computed…

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Q: n the future pennies have become obsolete and a new type of furnace is invented that converts the…

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Q: Couldn't read the last follow up question as the solution written breaks the page and am unable to…

A: (Note: As per the student's request, here I am giving the solution to the part D only)   Question:…

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Q: There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of…

A: How much energy does the laptop battery hold when it is fully charged? Given, Power(P)=15 W…

Q: If you know that the density of water is 1000 kg/m3, the height of the falling water is 0 150, the…

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Q: A stationery shop use the following electric appliances: () Three Air Conditioner of rating 2100 W…

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.