hree resistors are connected to a 90 volt battery as shown in the Figure.  R1 = 18 ohms,  R2 = 20 ohms,   R3 = 30 ohms.  The equivalent resistance of the entire circuit (in ohms) is The current through R1 (in amps) is

Q: Fill in the blanks.. In 1887, Heinrich Hertz discovered a)....................... waves. His…

A: Fill in the blanks. About hertz experiment.

Q: A 30-cm-long cylindrical solenoid with a radius of 5.0 cm consists of 500 turns wrapped around its…

A: Given  length of solenoid= 0.3m radius of solenoid= 0.05m number of turns = 500 Aim : To find self…

Q: A 5.00 [cm] long solenoidal inductor has 50 turns and radius of 3.00 [cm]. If the current varies at…

A:

Q: Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a…

A: Given:Police radar transmits at a frequency (ftransmited) =22.4 GHz or 22.4×109 HzCar moving toward…

Q: Two ideal gases have the same mass density and the same absolute pressure. One of the gases is…

A: Two ideal gases have the same mass density and the same absolute pressure. One of the gases is…

Q: How does varying the frequency effect contraction force? Which interval caused the greatest…

A: We have to find the varying the frequency effect contraction force and have to find interval caused…

Q: A polarized electromatnetic wave is originating behind the page. If possible, the electromagnetic…

A: In B and C electric field and axis of polarizer are parallely oriented so here maximum electric…

Q: Which of the following statements are TRUE regarding induced electric fields? I. In any closed path,…

A: Concept-    ⇒ Induced electric field is time varying field which is produced by change in the…

Q: A light conducting ring is placed on top of an iron core with a wire wrapped around it as shown.…

A:

Q: Two parakeets sit on a swing with their combined center of mass 15.0 cm below the pivot. At what…

A:

Q: In the figure 1 = 4.38 V, 2 = 1.17 V, R₁ = 3.972, R₂ = 1.902, R3 = 4.782, and both batteries are…

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

Q: Bleep Bloop. Consider two circular loops with radius R carrying current I flowing counterclockwise…

A: Magnetic field due to both current carrying wire is in same direction so net magnetic field is going…

Q: A 1.13-mF capacitor is connected to a North American electrical outlet (AVrms = 120 V, f = 60.0 Hz).…

A:

Q: 90 N 40° L=1m 80 N 37° A 1/4 L 3/4 60 N The moment of force about A is approximately 37 Nm…

A:

Q: A rocket is launched upward with a velocity of 128 feet per second from the top of a 80-foot…

A: Initial velocity (u) = 128 feet per second height of building (h) = 80 feet

Q: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

A: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…

Q: A concave shaving mirror has a radius of curvature of +36.1 cm. It is positioned so that the…

A: Given data: The radius of curvature of mirror is R=36.1 cm. The magnification of image is m=1.59.

Q: what is the factor for a cabe at 5degree celcius when calculating resistance od a cable? option…

A: Solution: The resistance of wire increases with increasing temperature. The electrical resistance of…

Q: The uniform thin rod in the figure below has mass M = 2.00 kg and length L = 3.25 m and is free to…

A: Rotational motion contain of the movement centered in the rotational examination of an object as it…

Q: Why is a soft iron core ( rather than hard) preferred as the core of an electromagnet

A:

Q: oman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. This…

A: Given m=63.5 kgA=1.4 cm2=1.4×10-4 cm2

Q: PROBLEM 2. A 1-inch -diameter steel shaft rotates at 220 rpm. If the shearing stress is limited to…

A:

Q: Relationship between slip and torque?

A: The relationship between slip and torque is direct relation as  Torque(T) is directly proportional…

Q: A direct-current generator has an EMF of 120 V, which means that it is also its terminal voltage…

A:

Q: An air bag is used as a safety device in vehicles. When accident happens, it automatically inflates…

A: When car moves our body also moves with velocity of car, when car collides it comes to rest but due…

Q: A jet airplane in level flight has a mass of 8.60 x 104 kg, and the two wings have an estimated…

A:

Q: Seals may cool themselves by using thermal windows, patches on their bodies with much higher than…

A: Area (A) = 0.03 m2surroundings temperature (T) = -15oC = 258 K temperature of thermal window (T') =…

Q: 2)  Meanwhile, other researchers had studied the way energy is emitted from hot objects. The…

A: The ability of a body to radiate is also related to its ability to absorb radiation. A body at…

Q: Dizzy Particles. An electron of mass m and charge -e moves at a constant speed v along a circular…

A: charge on electron = -e radius of the path followed by the electron = r speed of electron = v The…

Q: d) Two charges Q1 and Q2 are held stationary 1 m away from each  other. The magnitude of charge of…

A: When an object retain electrons, it has a surplus of electrons and is said to have a negative…

Q: For the items 26 and 27, consider the following sinusoidal plot of the instantaneous voltage of an…

A: An electrical circuit that consists of a series connection of an inductor (L), a capacitor (C), and…

Q: Four long, straight, conducting wires lie along a single plane in parallel with one another. The…

A:

Q: A camera is equipped with a lens with a focal length of 39 cm. When an object 2.2 m (220 cm) away is…

A:

Q: A hexagonal wire carries a 12 A current flowing in the counterclockwise direction. Consider six…

A:

Q: QUESTION 4 If the frequency of the wave is 11.14 Hz, and the wavelength is 6.41 m, what is the wave…

A: Given  Frequency of wave  v = 11.14 Hz Wavelength of wave L= 6.41 m To find  Wave speed in m/ s

Q: A hexagonal wire carries a 12 [A] current flowing in the counterclockwise direction. Consider six…

A:

Q: A long, straight wire with a circular cross-section of radius R carries a current I. Assume that the…

A:

Q: Pressure cookers use water at very high pressures to cook food very quickly. They have been around…

A: Write the given values with the suitable variables. d=24 cm=0.24 mP=0.75 atm=0.75×1.013×105 Pa=75975…

Q: A stone was thrown with initial velocity of 20 m/s at angle 30 degrees above horizontal. If the…

A:

Q: 1. If the body starts from rest at A and slides 200 ft down the 30° incline, how far will it then…

A: Given data: The weight of body is w=100 lb. The distance between A and B is l=200'. The angle of AB…

Q: Consider a parallel plate capacitor with area 4 [mm²] and separation 2 [mm]. Between the plates is a…

A:

Q: A rock is immersed in a liquid. What would happen with the liquid pressure it experiences if the…

A: A rock is immersed in a liquid. What would happen with the liquid pressure it experiences if the…

Q: first and second polarizers is 16.3°, and the angle 23 between the axes of the second and third…

A:

Q: Does Archimedes’ principle tell us that if an immersed object displaces 5 N of fluid, the buoyant…

A: Weight of displaced liquid is W = 5 N

Q: Suppose a truck travels 60 Kilometer in first hour and 80 Kilometer in Second hour. What is Average…

A: Given data :                Total Time Taken    =   t           Total Distance  Travelled    =    d…

Q: The speed of light in air is approximately v = 3.00 × 108 m/s and the speed of light in glass is v =…

A:

Q: . A very long cable made of a solid inner cylinder and a coaxial, cylindrical, outer shell with…

A:

Q: Two equal resistances are connected in parallel across a 150V DC source. What potential difference…

A:

Q: 1. Find equivalent resistance between: i) F and G; ii) F and H. 2R

A:

Q: By the way, what is atmospheric pressure

A: By the way, what is atmospheric pressure