What is the frequency of the infrared waves with a wavelength of 20mm?

Q: (b) In the figure below, a uniform beam of weight 500 N and length 3.0 m is suspended horizontally.…

A: Draw the free-body diagram of the system.

Q: A technician was accidentally exposed to potassium-42 while doing some brain scans for possible…

A: Activity after 36 hours = 2 micro Ci half life = 12 hr time = 36 hr

Q: If a particle has a charge of +30 μC, (a) has it gained or lost electrons? (b) How many electrons…

A: Charge of the particle, Q=+30μC The charge of the electron, e=-1.602×10-19C The charge of the…

Q: A machine raises a load of 410 N through a height of 12 m in 2 sec. Calculate: 1. Energy spent by…

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Q: 1. A 14.0 cm long wire experiences a magnetic force of 0.370 N. If the perpendicular magnetic field…

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Q: A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 438 N…

A:

Q: 6- 41.7 W power is consumed by a 50- kg person runs up the stairs 10 m high in 2 min. for 10 m/s2…

A: power = P=  41.7 w Time = t = 2 min = 120 sec mass = m = 50 kg height = h = 10m

Q: If you were moving at 4 m/s and then accelerated at 0.5 m/s squared for 10 s, how much distance…

A:

Q: A boy walks uniformly along the sides of a rectangular park with dimensions 400m x 300m, starting…

A: A boy walks uniformly along the sides of a rectangular park with dimensions 400m x 300m, starting…

Q: A clump of soft clay is thrown horizontally from 7.30 m above the ground with a speed of 20.0 m/s.…

A:

Q: A bedly bes 40 J of workin What is its power? 6 S.

A: Given in question:     Work done by baby(W) = 40 Joule…

Q: 28.33 Calculate the magnitude of the magnetic field at point P of Fig. E28.33 in terms of R, 1₁, and…

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Q: A guitar string is 96 cm long and has a mass of 4.3 g. The distance from the bridge to the support…

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Q: Determine the area of the area below: R700.0 R300.0 920.0

A: As shown in figure we divide area in four part as shownn in figure. Area DEGF and area GEC are…

Q: Position in Knife-edge Mass of the Meterstick Length of the Longer Side L (cm) (A) Hanging Length of…

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Q: An electron passes through a point 3.47 cm from a long straight wire as it moves at 39.3% of the…

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Q: Two metal blocks are submerged in the water. One is a 4-cm³ cube of lead (Plead = 11.3x 10³ kg/m³)…

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Q: Use the letter associated with each of the following FBD's Fnorm Ffrict A. B. Ffrict Ffrict C. D. E.…

A:

Q: Your friend in Canada tells you it was 2°C when they left for school this morning. What was the…

A: Given data:  Temperature in degree Celsius (TC) = 2 °C Required: Temperature in degree Fahrenheit…

Q: A 108-g cube of ice at 0°C is dropped into 1.0 kg of water that was originally at 71°C. What is the…

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Q: Find the mass of a car that drives at 22 m/s and has 14500 J of energy.

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Q: ACTIVITY 2: IMAGE FORMATION THROUGH RAY DIAGRAM - CONCAVE LENS 4. Object location at F'

A: Draw the ray diagram in the case of a concave lens when the object is placed at the focal length.

Q: The battery charger for cellphone contains a step-down transformer with a turns ratio 1:20, so that…

A:

Q: 1.1. A loop of aled 200 cm ² is positioned perpendicular to a uniform magnetic field, without…

A: Given: The cross-section area of the loop is 200 cm2. The change in the magnetic field is -0.08 T (…

Q: cone is resting on a tabletop as shown in the figure with its face horizontal. A uniform electric…

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Q: A 0.10 Kg model rocket’s engine is designed to deliver an impulse of 6.0 N·s. If the rocket engine…

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Q: The figure below shows a metal bar moving to the right along conducting rails in uniform B- field…

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Q: Calculate the reactance, Xc, of a 99 µF capacitor at a frequency of 1,617 Hz. Give your answer in…

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Q: 9. Which of the following causes merry-go-round rides to feel as if they are being pushed away from…

A: Centrifugal  force  a rider  on a merry go round feels if he is being off . centrifugal is apparent…

Q: ) One of the tallest radio towers is in Fargo, North Dakota. The tower is 629 m tall, or about 44…

A:

Q: A fan is turned off, and its angular speed decreases from 10.0 rad/s to 6.3 rad/s in 5.0 s. What is…

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Q: Calculate the wavelength at 32m/s of a frequency of a traveling of 6 Hz.

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Q: A tiny sphere of mass 7.90 mg and charge -2.80 nC is initially at a distance of 1.54 um from a fixed…

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Q: A wire is 23.5 m long at 4.00 °C and is 1.86 cm longer at 37.0°C. Find the wire's coefficient of…

A: Given data:  Original Length (L0) = 23.5 m Initial temperature (Ti) = 4.00 °C Final temperature (Tf)…

Q: and Engine.... E physics notes CO SCOIR - Discover New Tab If you were to build a pipe organ with…

A:

Q: A ball is accelerated from rest at 0.2 m/s2.  How far will it have traveled when its speed is 18…

A:

Q: des 40 J of workin A boly What is its power? 6 S.

A: Given data:  Work (W) = 40 J Time (t) = 6 s Required: Power (P)

Q: 2. A person with a mass of 62 kg is an elevator moving at a constant velocity of 2.3 m/s [up]. What…

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Q: The string is 50.00 cm long and weighs 14.00 g. Calculate the linear density of the string. ( in…

A: Given data:  Length (L) = 50.00 cm = 0.5000 m Mass (m) = 14.00 g = 0.0140 kg Required: The linear…

Q: The voltage and current through a capacitor connected to an ac generator are shown (super-imposed)…

A: Given : Peak voltage (Vo) = 99 V (from graph) Peak current (Io) = 2.8 A (from graph) Time for 1.75…

Q: The main difference between an x-ray and a microwave, both traveling in vacuum, is: Speed only…

A: Given data:  X-ray and microwave traveling in the vacuum Required: Relationship between speed,…

Q: 12- The blood vessels are the pipes of the body. O true Ofalse

A: The body's blood travels through blood vessels, which act as conduits  blood vessels create a…

Q: Which of the following is not true about the moment of inertia of a particular rigid body?   a The…

A: The moment of inertia (I) of a particular rigid body is defined as the sum of the product of the…

Q: A molecule (made up for this problem, so it may not actually exist in nature) has the chemical…

A:

Q: Find the magnitude of the magnetic field at the center of a 25 turn25 turn circular coil with radius…

A:

Q: Part A: 920 Btu/hr heat is conducted through a section of insulating material shown in Figure that…

A:

Q: A machine raises a load of 410 N through a height of 12 m in 2 sec. Calculate: 1. Energy spent by…

A:

Q: A transformer changes the 120-V voltage at a wall socket to 12 V when it reaches a cell phone…

A:

Q: The moment of inertia of a uniform rod (about its center) is given by /= ML2/12. What is the kinetic…

A: Given: The mass of the rod is 450 g = 0.45 kg.                                      {  1 g = 0.001…

Q: A rocket-powered sled moves along a track, eventually reaching a top speed of 209 m/s to the east.…

A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.