A wall, acted upon by a force of 20 N, does not move. The work done in this process is (A) 20 J (B) 0 J (C) 10 J (D) Nothing can be said

Q: Calculate the work done Force=1.12 N Displacement=0.5 m

A: Given that Force = 1.12 N Displacement = 0.5 m

Q: Find the pressure Force=2.6 N Area=1 m2

A: Given data:  Force (F) = 2.6 N Area (A) = 1 m2 Required: Pressure (P)

Q: Determine mass Density=1032 kg/m3 Volume=0.002 m3

A: Given data : Volume=V Density=ρ   Required : Mass

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Q: Physics Do these values of LED Planck's contant agree with the theoretical value: 6.63 x 10- 34 Js?…

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Q: A 15.0-cm long cylindrical metal rod has a uniform diameter of 2.16 cm and weighs 148.40 g.…

A: Given: The mass of the object is 148.4 g. The length of the rod is 15 cm. The diameter of the rod is…

Q: Three capacitors of 2, 3 and 6 µF, are connected in series, to a 10 V source. The charge on the 3 µF…

A: Given data: The capacitors are, C1=2 μFC2=3 μFC3=6 μF The voltage across the capacitor is V=10 V.

Q: A speed skater increases his speed from 10m/s to 12.5m/s over a period of 3s while coming out of a…

A: Given data, Initial Speed (u)=10 m/s Final velocity (v)=12.5 m/s Time period ∆t= 3 s Radius of the…

Q: 10. If the dielectric used in the capacitor were a 0.010-mm-thick sheet of nylon, what would be the…

A:

Q: A guard on top of a castle shoots an arrow directly downwards. The arrow has a speed of 9m/s when it…

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Q: When jumping down, you can seriously injure yourself if you land on stiff legs. One way to avoid…

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Q: Find the impulse Force=12.12 N Time-5.1 s

A: Given data:  Force (F) = 12.12 N Time (t) = 5.1 s Required: The impulse (I)

Q: An automobile reduces its speed from 70.00 kph to 50.00 kph after covering a distance of 480.00 m.…

A: Second equation of motion, V2 - U2 = 2 a S Where, V = final velocity               U = initial…

Q: the first. Calculate the frequency of the first and the last fork.

A: We know the frequency of xth tuning fork =n+5(x-1) as the frequency of the last fork is an octave of…

Q: Find the value of displacement Work done=0.54 J Force=0.2 N

A: Given data : Force=F Work done=W   Required : Displacement

Q: he index of refraction of benzene is 1.80. The critical angle for total internal reflection, at a…

A: Given: The refractive index of the benzene is 1.8.

Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…

A: Mass, m = 18 kg Potential energy, U = 210 J Acceleration due to gravity, g = 10 m/s² Height, h = ?

Q: 4. A rocket ship has a mass of 1.50 x 105 kg. Its relativistic momentum is 3.00 x 10¹2 kg•m/s. How…

A:

Q: Given data: Current = 22 A Resistance = Find the voltage 30 ohms

A: Given, Current, I = 22 A Resistance, R = 30 Ohms Voltage, V = ?

Q: device? Why? 2. Does AC power source can use directly to our home appliances at home? Why or why…

A: Answer:-  (2)AC power source can use directly to our home appliances at home.  Because The main…

Q: An iron ball with mass 180g is attached to a chain that is 1.2m long, suspended at an angle of 55…

A: Draw the schematic diagram of the system.

Q: 4-75.Determine the reactions at A and B for the beam shown in Figure P4-75. 85 kN 50 kN A 464 15 B 4…

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Q: What kind of circuit is having a closed loop with inductor and a capacitor? Why is AC dangerous than…

A: Answer:-  (1) An LC circuit is a closed loop with just two elements: a capacitor and an inductor. An…

Q: A displacement vector points in a direction of = 28° left of the positive y- axis. The magnitude of…

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Q: Find the magnitude of the angular momentum of a particle with respect to the origin given that the…

A: Given : Mass =m Position =xo moving  left Speed = v Line : y=a

Q: 1. All magnetic fields originate in A. iron atoms B. permanent magnets C. magnetic domains D. moving…

A: As per our guidelines, we can answer only first 3 questions. 1. All magnetic field originate in…

Q: Fill in the blanks - 1 attachment A block is pushed against a horizontal spring, compressing it to…

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Q: What condition is necessary for a real image in a concave mirror? A.) Object outside the focus B.)…

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Q: Two plastic cups spinning horizontally in a counterclockwise direction about a frictionless axis.…

A: Assuming initial mass of the bucket system is m, then inertial moment of inertia, => Ii = mr2…

Q: Calculate impulse Force=10.75 N Time 3 s

A:

Q: b. An air filled 50μF capacitor has a voltage of 10V. An insulator with a dielectric constant of 4.0…

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Q: How much work is done by pulling the box in the figure for distance 20 em F-30 N 60 O 300 N O 3J O O…

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Q: Suppose a 3 N force can rupture an eardrum. If the eardrum has an area of 1.2 cm2, then the maximum…

A: In the question, it's given that  Force ( F ) = 3N Area of the eardrum  =  1.2cm2 = 1.2 × 10-4 m2 We…

Q: Output of a truck is 4500 J and its efficiency is 50%, input energy provided to truck is A. 5000 J…

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Q: An airplane travels 40 miles in 10 minutes, then travels 20 miles in 80 minutes. Is the pilot…

A: Given data :- distance d1 = 40 miles time t1 = 10 minutes distance d2 = 20 miles time t2 = 80…

Q: Must a capacitor’s plates be made of conducting material? What would happen if two insulating plates…

A: The insulating material do not allow the flow of the charge where as the conducting materials are…

Q: Find the value of displacement Work done=203.5 J Force=26 N

A: Given data : Force=F Work done=W   Required : Displacement

Q: When a person lifts an object improperly, a force of 4000 N may be created between vertebrae in the…

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Q: st pic is the problem 2nd pic is the solution question to answer: why was cos80 disregarded? can…

A: First equation Tacos350=TbCos800 + 30 N....................(1)second equation∑n=0nFx=0  -Tasin360…

Q: What exactly is digital audio, though? The process through which analog sound waves are converted…

A: This question is based on the conversion of analogue (Natural) signals into digital(1s and 2s). The…

Q: A bullet of mass 0.01 kg is fired at a block of mass 1.3 kg as shown in the figure. After the…

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Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…

A: Number of Thorium nuclei in 390mg of thorium is N  = 60.2*1023/mol/232g/mol *(390*10-3g)     =…

Q: 1. What do you mean by emf and what are the factors affecting emf?

A: Since you have mentioned multiple questions and did not specify any number, I will be solving the…

Q: An electric iron of resistance 13 ohms takes a current of 2 A. Find the heat developed in 6 seconds

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Q: The image produced by the lens if an object is placed in front of a diverging lens at a distance…

A: The object is placed between 2F and F in front of a diverging lens (concave lens)

Q: Q-A missile runs freely without of fuel in the location as shown in figure.2, calculate:- 1-…

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Q: If you have to climb eight stories at a height of 24 m above ground level. Then the extra calories…

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Q: A 1000kg space probe is motionless in space. To start moving, its main engine is fired for 5s during…

A: Given data: The mass of space probe is M=1000 kg. The speed of exhaust gas is u=5000 m/s. The speed…