Which of the following scientists discovered the mechanical equivalent of heat?   a. Sadi Carnot   b. Amedeo Avogadro   c. Sir isaac Newton   d. Lord Kelvin   e. James Prescott Joule

Q: What is the electric flux of a vector area A = (4.0m²)î - (7.0m²)k in a uniform electric field Ē = −…

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Q: 1. Determine the normal force (in newtons) that the table now exerts on the 16.2 kg box. 2.…

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Q: -29 O + Charge #3 If the three point charges shown here lie at the vertices of an equilateral…

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A: Given data:  A air filled capacitor of two parallel plates Area (A) = 7.60 cm2 Distance (d) = 1.50…

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A: We know Reynolds number formula: Re=vDμhere kinematic viscosity : μ=0.015 m2/s fluid velocity…

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Q: Problem 2: An early model of the atom, proposed by Rutherford after his discovery of the atomic…

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Q: TERMINE THE RESULTANT OF THE CONCURRENT FORCES SHOWN BELOW 1. 4000 N ES - Problem Set-1.... 5000 N…

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A: To define  is the ratio of the light transmitted through a body to the amount of light which strikes…

Q: A B C Suppose a region of space has a uniform electric field, directed upwards, as shown in the…

A: A uniform electric field directed upwards is as shown in the figure The different points marked are…

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Q: a) the initial speed of ball B b) how far B will travel before landing at the same elevation from…

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Q: Q3) Water is placed in a piston-cylinder device at 50°C, 0.3 MPa. Weights are placed on the piston…

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

Q: A parallel plate capacitor has plates of area A = 5.50 x 10-² m² separated by distance d = 2.37 x…

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Q: 5) (ex) Mass on incline: A cable pulls a 30.0-kg crate by a distance of 3.00 meters up along a…

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Q: each gridline is 1 cm square and  wave traveling speed is1 cm/s.The end of the string at the blue…

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Q: A 60 kg crate is pulled along level floor at uniform speed by a rope which makes an angle of 25o…

A: Given, mass of the crate, m = 60 kg the angle of inclination, θ = 25° force, F = 300 N

Q: you push on the side of a skyscraper with a force of 100 N. how much force does the skyscraper push…

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Q: d) Draw a graph of the z-component (not the magnitude) of the electric field, Ez, for the values of…

A: Introduction: Here we have to draw a graph of the z-component ( not the magnitude ) of the electric…

Q: You've told your friends and family that despite circumstances you are getting plenty of exercise by…

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Q: A record of travel along a straight path is as follows: 1. Start from rest with constant…

A: Write the given values with the suitable variables. u1=0 m/sa1=2.25 m/s2t1=17 st2=2.70 min=162 sa2=0…

Q: A buoy floating in the sea is bobbing in simple harmonic motion with period 3 seconds and amplitude…

A: This can be evaluated by plugging given details into standard form of displacement in SHM

Q: 3. You toss a snack to your friend on a hike. Your friend is located 8.6 m up a 39° slope. Determine…

A: Given data: The distance d=8.6 m The angle θ=39°

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A: We know that, if two objects slide on each other then, friction force will be acting between the two…

Q: 1) The two blocks in the figure are sliding down the incline. The mass of block A is 6 kg, mg=4 kg.…

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Q: Compressed air is used to fire a 46.0 g ball vertically upward from a 1.8-m-tall tube. The air…

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Q: A 7.80 g bullet is initially moving at 610 m/s just before it penetrates a block of wood to a depth…

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Q: D) indicate the approximate uncertainty implied as an absolute quantity and E) indicate the…

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Q: What is the surface temperature of a star that has a radius of 7.00 x 108 m and emits power at a…

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Q: An object moving at 21.0 m/s has 1390 J of kinetic energy. What is the object's mass? A. 6.30 kg B.…

A: Given Object speed = v = 21.0 m/s Kinetic energy = K.E = 1390 J We have to calculate object's mass

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Q: Derive linear density expressions for BCC [110] direction and planar density expressions for FCC…

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Q: How much work must be done by frictional forces in slowing a 1,059-kg car from 33.0 m/s to rest?…

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Q: 1. What is the wavelength of a radio wave with a given frequency of 450 kHz?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A: Given data:  Two point charges +Q and -Q Distance between point charges (r) = 2m Required: The…

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A: To obtain the position and nature of image due to reflection from a spherical mirror two rays are…

Q: The switch in (Figure 1) has been open for a very long time. The switch is closed at tt = 0 s.…

A: Given, emf of the battery, ε = 170 V