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Q: Water flows over a section of Niagara Falls at a rate of 1500 kg/s and falls 75 m. How many 60-W…

A: Given: The rate of fall of water is 1500 kg/s. The height of the fall is 75 m. The power of the bulb…

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

A:

Q: 65 20 8 Q3: Mention the basic drawing terms and the modification terms needed to draw the figure…

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Q: Define gravitational potential. Use the data below to show that its value at the Earth's surface is…

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

Q: A 5-kg object is pushed across a level surface with a force of 12 N for a distance of 6 m. How much…

A:

Q: Gravitational potential energy is the stored energy due to the position (height)of an object.…

A: Gravitational potential energy is the energy possessed or acquired by an object by virtue to…

Q: ••27 In Fig. 27-40, the resis- tances are R, = 1.0 n and R, = 2.0 0, and the ideal batteries have…

A: As given, The resistor, R1=1 Ω The resistor, R2=2 Ω The emf voltage, ε1=2 V The emf voltage, ε2=ε3=4…

Q: gir A vehicle went akimbing up a gradient Consumes petrol at a rate of 14/8 km, while coming down it…

A: Given: A vehicle climbing up a gradient consumes petrol at a rate is 1 L/ 8 km A vehicle coming down…

Q: A particle of is Subpeet to a is a positue constant. is initially ot pasition Li, maring initial…

A: force, F=ma, mass of the particle=m a=acceleration of the body F=m dvdt  =m dvdxdxdt =m vdvdxF dx=mv…

Q: t what speed will a proton be traveling if it encounters a feild of 2.84-T and generates a force of…

A: given that  F = 3.05 N B  = 2.84 T Q = 1.6 X 10-19 C F = QVB

Q: the electrical energy used by a household whose monthly electrical bill is $42, computed at the rate…

A: Givenmonthly electrical bill is $42At rate of $0.07 per kWh.

Q: Given that the PE at B is 25.0 kJ and KE at B is 80.0 kJ. What is the KE at A if the height at A is…

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Q: Can the normal force on an object ever do work? yes no

A: Yes sometimes Normal force also do works on an object.

Q: In a particular city, electrical energy costs $0.13 per kilowatt-hour. (Round your answers, in…

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Q: Energy density of wire is 0.25 J/m³, when its extension is 0.2 cm. Find energy of wire, when…

A: We need to  compute the energy density of the wire for elongation 1 cm (U2)=?The data provided is…

Q: What is the potential energy (compared to the floor) of a 1200N box which is 4.0 m above the floor?

A: Given: The weight of the box is W = 1200 N The height above the floor is h = 4 m

Q: 3 What is the velocity of a 2 kg object dropped from a height of 20 m when it hits the ground, in…

A: Given that-Mass, m= 2 kgHeight, h= 20 mBy using conservation of energyWe can write-Kinetic energy=…

Q: An object is mov ed from pont P(O,0> 0) to point Q (4,7,5) by exerting a force in the direción ŷ = Ì…

A: Write a given value of this question. P=(0,0,0)Q=(4,7,5)V→=F→F→=i^+4j^+8k^

Q: What is the speed of electricity?

A: The word electricity  generally refers to the movement of free electron within conductor in presence…

Q: How can energy be transferred back forth between kinetic energy and potential energy?

A: Ans:-       Kinetic energy can be stored if we drop the object from the shelf or release the spring,…

Q: Certain force acting on a 20 kg mass ch.urlyc its velocity from 5 m/s to 2 m/s. Calcukate the work…

A: Introduction :  In this question we are provided it value of mass , initial velocity and final…

Q: A 50 kg. diver getsready to dive from a 10 meter high diving board. How much gravitational potential…

A: The gravitational potential energy is given as  U = mgh where, m is the mass, g, is the…

Q: A runner with mass 100 kg run at speed 25km/h on a wet road with friction force equal to : * O 245.2…

A:

Q: Two blocks, A and B (with mass 40 kg and 120 kg, respectively), are connected by a string, as shown…

A: "As per the guidelines i solved the three subpart". (b) The frictional force exerted on the block A…

Q: What is the potential energy (compared to the floor) of a 1200N box which is 4.0 m above the floor?

A:

Q: The gravitational potential due to a mass distribution is V- Find the gravitational field. + a

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Q: can a potential energy be negative? or it should always be positive?

A: Potential energy can be positive , zero or negative . It is a relative term which depends on…

Q: 49. Find the work done by the vector field x²+y² i+ Vx2 + y² in moving an object around the unit…

A: Given; Fx,y=xex2+y2x2+y2i+yex2+y2x2+y2j

Q: PartB: What1 the change in prers ure, in pascals,07 bluool atthe brain due To sitingup, neglecting…

A: As person sits up and height was raised due to this as a result heart needs to create more pressure…

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

Q: 8. Find the work done by the field F in moving an object from P to 5 F(x, y) = x² ↑ + y³ Ĵ; P(1,0),…

A: Given, Force, F→ = x5 i^ + y5 j^ P1, 0, Q3, 3

Q: 5m 4 83 ,= +2u C = - 2 u C 83 = + 4u C FIND FORCE ON 81: THE NET

A:

Q: EXAMPLE PROBLEM. A communications satellite is in a circular orbit of radius 2 DU. Find the minimum…

A: We are given the initial radius of orbit. We are given final orbit of radius. We find the change in…