Cover each end of a cardboard tube with metal foil. Then use a pencil to punch a hole in each end, one about 3 millimeters in diameter and the other twice as big. Place your eye to the small hole and look through the tube at the colors of things against the black background of the tube. You'll see colors that look very different from how they appear against ordinary backgrounds. Write down observation

Q: A gas expands from I to F along the three paths indicated in the figure below. Calculate the work…

A: The work done along IAF = work done during isobaric expansion IA + The work done during isochoric…

Q: An observer in reference frame S claims that two events occur simultaneously. As this observer sees…

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Q: The pressure in a constant-volume gas thermometer is 0.700 atm at 100°C and 0.512 atm at 0°C. (a)…

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Q: A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius…

A: When multiple different questions are given then according to the guidelines, only the first…

Q: A monatomic ideal gas is heated while at a constant volume of 3.41*10^-3 m^3, using a 27.1 watt…

A:

Q: A diathermy machine, used in physiotherapy, generates electromagnetic radiation that gives the…

A: Given, Frequency, f = 13.56 MHz = 13.56 x 106 Hz Speed of light, C = 3 x 108 m/s Hence, wavelength…

Q: Where is the image located for a diverging lens with a focal point 3 mm on the right of the lens and…

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Q: The number of radioactive nuclei present at the start of an experiment is 3.52 x 1015. The number…

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Q: A proton with a speed of 3.2 x 106 m/s is shot into a region between two plates that are separated…

A: Write the given values with the suitable variables. v=3.2×106 m/sd=0.22 m Here, v and d are the…

Q: ds The accompanying figure shows the velocity v = = f(t) dt (m/sec) of a body moving along a…

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Q: Two resistances, R₁ and R₂, are connected in series across a 12-V battery. The current increases by…

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Q: A 24.0-mH inductor has a reactance of 1.50 ko. (a) What is the frequency of the ac current that…

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Q: An antelope is at a distance of 20.0 m from a converging lens of focal length 33.0 cm. The lens…

A: Object distance (p) = 20 mfocal length (f) = 33 cm = 0.33 m velocity of antelope away from the lens…

Q: Draw two circuits with a 24.0-V battery and 4 resistors that are connected in series or parallel…

A: Circuit 1: Four resistors connected in series Assume that, R1=R2=R3=R4= 6 ohms Total resistance: R…

Q: This time, your mass is 75.5 kg and the sled s mass is 22.1 kg. You re on the sled, initially moving…

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Q: A(n) 88-kg sprinter accelerates from rest to a speed of 11.0 m/s in 4.2 s. (a) Calculate the…

A: Mass(m)=88 kg Initial speed=0 m/s Final speed=11 m/s Time taken=4.2 s

Q: S y C d Lines of charge coming out of the page The figure (Figure 1)is a cross section of two…

A: Consider the following figure.   The charges are at points 1 and 2. The linear charge density is λ.…

Q: A picture of mass m = 11 kg is hung on a wall from a hook with a piece of wire. The picture hangs…

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Q: MY NOTES ASK YOUR TEACHER PRACTICE ANOTH Two converging lenses having focal lengths of 12.0 cm and…

A: focal length of first lens (f1) = 12 cm focal length of second lens (f2) = 25 cm distance between…

Q: A proton with a speed of 2.8 × 106 m/s is shot into a region between two plates that are separated…

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Q: What makes copper turn green outdoors?

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Q: The magnetic field shown in the figure below has a uniform magnitude of 26.0 mT directed into the…

A: Uniform magnetic field of magnitude=26 mT Initial diameter of the kink=2.00 cm

Q: Problem 6.A 12-foot chain is hanging from a winch 18 feet above the ground level. Find the work done…

A:

Q: 1. Two uniform spheres, each with a mass 0.260 kg are fixed at points A and B. A small uniform…

A: See below

Q: What is the difference between a series and parallel circuit?

A:

Q: A certain metal has a temperature coefficient of resistivity of 0.0064 (°C) -1. A wire made from…

A: Write the expression for the power and substiute the corresponding values to obtain the expression…

Q: An object 11.0 cm tall is placed at the zero mark of a meterstick. A spherical mirror located at…

A:

Q: A person can see clearly up close, but cannot focus on objects beyond 72.0 cm. She opts for contact…

A: The woman can not focus the object beyond 72.0 cm  We have to find out the focal length and power of…

Q: A student's eyes, while reading the blackboard, have a power of 50.5 D. How far in m is the board…

A: See below

Q: A square field measuring 100.0 m by 100.0 m has an area of 1.00 hectare. An acre has an area of…

A:

Q: Where the posted speed limit is 55 miles per hour (mi/h or mph), what is this speed (a) in meters…

A: Speed =55mile per hour

Q: Light of wavelength 740.0 nm passes through a single slit of width 1.80 μm, and a diffraction…

A:

Q: 2.) A uniform pole of 2.5m length and 4.0kg mass is suspended horizontally from the side of a…

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Q: A boat, which moves at 11 miles per hour in water without a current, goes 117 miles upstream and 117…

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Q: (a) A goldfish is swimming at 5.80 cm/s toward the front wall of a rectangular aquarium. What is the…

A:

Q: The number of radioactive nuclei present at the start of an experiment is 5.38 x 1015. The number…

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Q: A person pushing a uniformly-loaded 43.7 kg wheelbarrow of length L with pushing force P is…

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Q: (a) Suppose a meter stick made of steel and one made of invar are the same length at 0°C. What is…

A: Introduction: Thermal expansion is the tendency of the body to change its size and shape in response…

Q: • Determine the time constant of the circuit, T = seconds • Fill in the table of formulas below. Use…

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Q: A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a…

A:

Q: The two mirrors illustrated in the figure below meet at a right angle. The beam of light in the…

A: Draw the schematic diagram of the system.

Q: Lake Erie contains roughly 4.00 x 10¹1 m³ of water. (a) How much energy is required to raise the…

A:

Q: Consider a cylindrical cable with a hanging weight suspended from it. a. When the mass is removed,…

A: Given that, Mass m=55 kgThe length of the cable when mass is removed is l0=4.78 mThe length of the…

Q: In the figure, two blocks (m = 2.40 kg and M = 12.0 kg) and a spring (k = 260 N/m) are arranged on a…

A: 1) Smaller block mass: m = 2.40 kg 2) Bigger block mass: M = 12.0 kg 3) Spring constant: k = 260 N/m…

Q: A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius…

A:

Q: A ball is kicked at 22.0 m/s [30.0 degrees above horizontal]. Draw a displacement vector diagram of…

A:

Q: Considerable scientific work is currently under way to determine whether weak oscillating magnetic…

A: See below

Q: The function x = (8.4 m) cos[(4лrad/s)t + π/5 rad] gives the simple harmonic motion of a body. At t…

A:

Q: A 76 kg solid sphere with a 16 cm radius is suspended by a vertical wire. A torque of 0.56 N-m is…

A:

Q: Why is pluto not considered a major planet? Explain.

A: Why is pluto not considered a major planet? Explain.

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.