18. The necessary conditions for the equilibrium of an object is a) ΣF=0 and Στ0 b) ΣΤ= 0 and Σ Ιω-0 e ΣF=0 and Σmr? 0 d) ΣF=0and Σ Ια -0 %3D %3D

Q: 2. A 35 kg child is riding on a swing. At her highest point she is 1.8 m above the ground, at her…

A:

Q: I need help with 13 as well, please

A: A vacuum works by the principle of suction. Suction happens when the absolute pressure created at…

Q: answer. Example: -3.14, -314.51, 3.14, 314.51 As shown in the figure, a thin film is deposited on…

A:

Q: The average intensity of the solar radiation that strikes the Earth normally (just outside the…

A: Intensity I=1.4 KW/m2= 1400 W/m2 Mean Earth - sun distance r= 1.5*108 m Speed of Light c=3*108 m/s…

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: Above. 20. Estimate the wavelength at which the Sun emits the most light. Assume that the average…

A: Temperature (T) = 5800 k

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A: Given data: Moment of inertia (I) = 0.5 kg.m2 Angular acceleration (α) = 700 rad/s2 Required: Torque…

Q: please answer both

A: Hello. Since you have posted multiple questions and we will solve the first question for you. If you…

Q: Given the surface charge density ps = 100 µC/m², existing in the region p<0.2 m, z = 0, find E at…

A: Given that: ρs=100 μC/m2PA (ρ=0,z=0.5) mPB (ρ=0,z=-0.5) mWe can consider the value of radius ρ=0.2 m

Q: The motion of a particle is defined by the relation x = 21³ – 15t² + 24t + 4, where x is expressed…

A:

Q: 4. What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room…

A: Given, Ambient Temperature =24°C Skin temperature =32°C Surface Area =1.6 m2. Emissivity of skin…

Q: The coil in a loudspeaker has 55 turns and a radius of 3.7 cm. The magnetic field is perpendicular…

A: Given: In this question, the given details are, The coil in a loudspeaker has 55 turns and a radius…

Q: 12. Can you make the particles of any of the substances stop moving?

A: Answer to this question is no. even at aboslute zero temperature particles are still in vibration .…

Q: 8. A transformer is a device used to increase or decrease the voltage through induction. Which…

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Q: 44. (a) What is the equivalent resistance between points A and B? (b) A 276-V emf is connected to…

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Q: Problem 8: Penny is adjusting the position of a stand up piano of mass m, = 220 kg in her living…

A: Part (a) Minimum force Fs is, Fs,min=Ffr2=μsmpg2

Q: 1. A skier is coming down the hill. What are the forces acting parallel to the slope of the hill?…

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Q: 8. From Ampere's law, it can be shown that the magnetic field B inside a long solenoid is B = HonI…

A:

Q: (5) A 15.0A current produces a B field at the center of an arc of angle n/4 radians and radius…

A: (5) Given Current (I) = 15.0 A Radius (r)  = 0.500 m Angle θ  = π4 radians

Q: 9. Tarzan has a mass of 80 kg and is about to be attacked by a gang of Amazon warriors. Jane has a…

A: Mass of Tarzan is 80 kg. Mass of Jane is 60 kg. The initial speed of Jane is 2 m/s. The initial…

Q: I need help with question 10 please.

A:

Q: A 19th century lab technician is testing possible metals for bulb filaments. A carbon filament with…

A: Given: In this question, the given details are, A 19th century lab technician is testing possible…