An electric iron of resistance 14 ohms takes a current of 5 A .find the heat developed in 20 seconds.

Q: energy stored in the spring (k = 2400 N/m) will be

A: Given; 10 kg of mass has an accelertion,a=12 m/s2k=2400 N/m Two masses,   m1=10 kg   m2=20 kgIt is…

Q: A 125° 1000 dyn 500 dyn

A: FBD equations for 1000 dyn block:- Angle between TA and vertical=  90-65 = 25° Angle between TB and…

Q: For the given figure, the weight of the 12-ft bar is 5 lb. The moment of the tension in the cord…

A: Given: The length of the bar is 12 ft. The weight of the bar is 5  lb.

Q: How much time does it take to lift 500 kg

A: Given; height,h=50 mDevelops power,P=65 kWTime taken to lift the weight to a height of 50 m is ?

Q: Find the value of distance covered by car in 5 s if speed of car is 20 m/s

A: Given  Time  = 5 s Speed = 20 m/s Distance = ? We know  formula,  Speed = distance / time

Q: This is a position vs. time plot of an experimental piston moving up and down. At what time does the…

A: Given, This is a position vs. time plot of an experimental piston moving up and down.  We know that,…

Q: Find the electric resistance of a tin rod 29 m long, if its cross-sectional area is 1.5 mm^2 and its…

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Q: V

A: Given: The direction of velocity of the proton is in left direction. The direction of the magnetic…

Q: Look at the image below. 120 N 30° 20.0 m As depicted in the image, a person mowing a lawn exerts a…

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Q: For the given figure, the unknown mass, m, should be slug to maintain the bar in a horizontal…

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Q: What is the current flowing into the 1-ohm resistor? 3.00 Ω 18.0 V 4.00 N -2.00 N 1.00 N

A: The total current drawn from the battery by the circuit is i=VReq, where Req is the equivalent…

Q: 3B. 100-N block on a rough 300-incline is acted upon by a force P as shown causing it to accelerate…

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Q: 3B. 100-N block on a rough 30º-incline is acted upon by a force P as shown causing it to accelerate…

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Q: When light passes from air into water, the frequency of the light remains the same. What happens to…

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Q: Protons in an accelerator at the Fermi National Laboratory near Chicago are accelerated to a total…

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Q: An object is moving to the right with a constant acceleration pointing to the left. The velocity of…

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Q: would a 100% efficient engine violate the first law of thermodynamics? What about a workless…

A: would a 100% efficient engine violate the first law of thermodynamics? What about a workless…

Q: Does it INCREASE, DECREASE or REMAIN THE SAME? As the screen is moved farther from the slits, the…

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Q: 5. For the following motion equations = 2t – 15t + 36t – 22, t > or equal to 0 c. When is the…

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Q: Find the value of kinetic energy stored in car having mass of 2.48 kg moving with velocity 0.45 m/s

A: Given data :                            Mass    =    m                        Velocity    =     v…

Q: A typical flashlight battery will produce a 0.5 A current for about 3 hours before losing its…

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Q: Q4: A purticle of mass m and kinetic energy E>0 approuches potential drop V. Find the reflected and…

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Q: A race car is travelling at a speed of 262 km/hr. The frequency of the engines roar is 950 Hz. The…

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Q: For the given figure, the weight of the 12-ft bar is 5 lb. The moment of the tension in the cord…

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Q: A current of O.50 A exists in a 50-ohm lamp. The applied potential difference is 0.50 V O 25 V 50 V…

A: Write the given values with the suitable variables. I=0.5 AR=50 Ω Here, I is the current and R is…

Q: R=200Q I= 5A V= ???

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Q: A police car traveling at a speed of 30.0 meters per second sounds its siren, which has a frequency…

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Q: An ambulance traveling at a speed of 20.0 m/s sounds its siren, which has a frequency of 2. 00 · 10°…

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Q: 1. Calculate the currents of each resistor in the circuit below. 20 3V 120 101

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Q: 8. The charge of an electron was derived from the electrical microbalance set up created by: a.…

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Q: 40 If two billiard balls collide on a billiard table, generally what type of collision is this?…

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Q: R3200Q I= 5A V= ???

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Q: A paraglider started to descent in his wingsuit. Knowing that air resistance will be significant to…

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Q: 22 Elastic collision is a collision in which there is absolutely no loss of kinetic energy. True…

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Q: Ricky moves a wagon a distance of 36 meters by pulling the handle with a force of 120 Newtons. If…

A: Given: Force (F) = 120 N  Distance (d) = 36 m  Work done = 2200 J

Q: For the given figure, the weight of the 9-ft bar is 6 lb. If F = 5.14, the reaction exerted by the…

A: Force produces torque. This torque bring about rotation. Force may be balanced but torque may be…

Q: Determine the momentum of a car having mass 200 kg moving with a velocity 34 m/s

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Q: How is Earth itself considered to be the biggest magnet. Answer in 5 to 6 sentences

A: How is Earth itself considered to be the biggest magnet. Answer in 5 to 6 sentences.

Q: A cannon on the surface of the Earth launches a 25.0 kg ball with a velocity of 25.0 m/s at an angle…

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Q: is it not easy to achieve dliffiact ion with light-

A: We are able to see the phenomenon of diffraction when size of obstacle is comparable to the…

Q: A flute is designed so that it plays a frequency of 261.6 Hz, middle C, when all the holes are…

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Q: R=2002 I= 5A V= ???

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Q: During a lightning flash, -6 C of charge is transferred across a potential difference of about 10^7…

A: Given in quesion - Charge(Q) = -6 Coulomb                                 Poential difference(V) =…

Q: a. In the ancient times, people thought that the Sun is revolving around the Earth because of how we…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: A solid disk of mass 100.0 kg and radius 10.0 m is spinning at 0.500 rad/sec when a 15.0 kg child is…

A: a) By conservation of angular momentum…

Q: What is the direction of the acceleration of your car when you start backing out of your parking…

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Q: Give eight physical evidences that light travels in straight lines.

A: Life without light would have been pretty dull. Light travels at a speed of 186,000 miles per…

Q: he water’s speed at the opening of the horizontal pipeline is 4 m/s. What is the speed of water at…

A: Given: The speed of the water flow at large section of the pipe is 4 m/s. The diameter of the…

Q: Si consideri il circuito mostrato in figura, dove R. 102,V = 30 V, e la corrente e' | = 2 A. Quanto…

A: Given R1 = 10 ohm  , R2 = ? V = 30 V  ,  I = 2 A Resistor are in series therefore  R = R1 + R2 = 10…

Q: Find the force on an electron if it is placed at a point where the electric field intensity is 240…

A: Given, Electric field intensity at a point, E = 240 N/C (towards right)