a man is changing a light bulb at the top of a 1500 foot tall raio tower an rops his screwriver. Assuming no air resistance, how long will it take to hit the ground in secons? SHOW ALL YOUR WORK

Q: The maximum electric field 9.7 m from a point light source is 2.3 V/m. What are (a) the maximum…

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Q: As shown below, a wire loop is immersed in a 0.73 T B-field (the direction of the field is shown in…

A: Magnetic Field B=0.73 T Initial radius r1=59 cm Final radius r2=4.2 cm Induced voltageε=6 V Induced…

Q: A Young's interference experiment is performed with blue-green laser light. The separation between…

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Q: A 7.1 C particle (with a mass of 0.00048 kg) is going 543 m/s when it is exposed to a magnetic field…

A: Charge on the particule, q=7.1 μC Mass of the particle, m=0.00048 kg Speed, v=543 m/s  The magnetic…

Q: The barge of starch passes a light house. From the top of the light house 60 m high from sea level,…

A: Height of lighthouse h=60 m Angle of depression θ=15°

Q: A fifteen-watt heater is used to heat a monatomic ideal gas at a constant pressure of 6.23 x 105 Pa.…

A: Write the given values with the suitable variables. Pw=15 WP=6.23×105 PaV=1.30×10-3 m3 Here, Pw, P,…

Q: Forces with magnitudes of v= 140 newtons and u= 285 newtons act on a hook (see figure). The angle…

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Q: In the figure, a cube of edge length L = 0.633 m and mass 1040 kg is suspended by a rope in an open…

A: a) Write the expression for the pressure on the top of the cube and substitute the corresponding…

Q: A steel bar and brass bar have the exact same length of 1.8000 m at -15.00 deg C. The coefficient of…

A: we first need to find the change in length of each bar as the temperature increases from -15.00°C to…

Q: A student of mass M = 62 kg takes a ride in a loop-the-loop at an amusement park. The radius of the…

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Q: 7. A patrol moves with a constant speed, sounding its siren with a frequency of 600 Hz. An observer…

A: The frequency emitted by siren (source), f=600 Hz The observer at rest observes frequency, fo=680 Hz…

Q: A single slit of width 0.030 mm is used to project a diffraction pattern of 500-nm light on a screen…

A: Width of the slit ( d ) = 0.030 mm  Distance from the screen to the slit ( L ) = 2 m  Wavelength ( λ…

Q: Which of the following statements are true (or at least aren't obviously false)? Choose all that…

A: Page 1

Q: A container holds 1.8 kg of ice at -15.0 degree C. (mass of the container can be ignored) Heat…

A: mass of ice = 1.8 kg initial temperature of ice = -15oC rate of supply of heat energy = 600 Jmin…

Q: One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads…

A: The far point for the eye of the patient is dfar=132 cm. The near point for the eye of the patient…

Q: Three charges Q₁ = 2 μC, Q₂ = 1 μC, and Q₂ = - 4 μC are Placed at coordinates (1,0), (2,2), and…

A: The magnitude of charge, Q1=2μC The magnitude of charge, Q2=1μC The magnitude of charge, Q3=-4μC The…

Q: Suppose a clay model of a koala bear has a mass of 0.250 kg and slides on ice at a speed of 0.650…

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Q: A uniform 3.7-kg cylinder can rotate about an axis through its center at O. The forces applied are:…

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Q: Consider a flat, square surface with a side length of 3.40 cm. If the surface is on the xy - plane…

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Q: Place all of the following in order from earliest to the most recent: Dark energy begins…

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Q: )A magnetic field of 20T is going into the page in a section of space. A rectangular circuit of…

A: Page1

Q: A concave mirror has a radius of curvature of 77.2 inches. How far (in inches) from the mirror is…

A: Radius of Curvature  = 77.2 inches

Q: Part A - There is a certain force between the two charges, and a certain potential energy within the…

A: distance between the smaller and larger charges is r1. and r1=2r2

Q: Consider the following resistive heating elements. Which one of these two elements would you use to…

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Q: Two iron wires are found in a closet. The first has a resistance of R₁. The second is 9 times longer…

A: Write the expression for the resistance. R=ρLAR∝LA

Q: A parallel plate capacitor initially charged with a battery that can produce a potential difference…

A: The potential difference, V=100 V The dielectric constant of the dielectric material, k=4.6 The…

Q: A boat is traveling at a speed of 50 kilometers per hour, ir the west from the northward direction.…

A: The vector of the velocity of the boat is in the north direction.

Q: Does it require more or less energy for water to evaporate below the boiling point?  I would assume…

A: It takes less energy for water to evaporate below the boiling point compared to boiling. This is…

Q: In the circuit below, V. 15 V, V₁ = 9 V, R₁ = 20, & R₂ = 30. Determine the current through R₁, R₂,…

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Q: The indices of refraction for violet light (A = 400 nm) and red light (A = 700 nm) in diamond are…

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Q: 49. Two small, identical foam spheres repel each other with a force of 2.05 × 10-4 N when they are…

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Q: How does the wavelength of light change when it travels from air into glass (ng ~ 1.5)? a) the…

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Q: You set up four two slit interference experiments (A-D), each using an identical laser as the light…

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Q: A capacitor has a dielectric with K = 55. Additionally, C = 9 F. The capacitor is charged until the…

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Q: A single-loop circuit contains two batteries, ₁ = 6 v, 0.25 £ and €2=16 v, 0.5 02, and are connected…

A: Battery voltage 1, E1=6V Internal resistance of battery 1, r1=0.25Ω Battery voltage 2, E2=16V…

Q: Show that in a homogeneous string v = sqr(T/μ)

A: In a homogeneous string v = sqr(T/μ)

Q: The resistors R₁ = 42 02, R₂ = 18.5 2 and R3 = 35.5 are connected to a 6-V battery as shown in the…

A: The given circuit is shown below.

Q: Two pieces of mud are stuck to the spoke of a bicycle wheel. Piece A is closer to the circumference…

A: Two piece of mud are stuck to the spoke of a bicycle.  Piece A is closer to circumference of the…

Q: 13. A source emits a sound with a frequency equal to 261.63 Hz. It is necessary for an observer to…

A: frequency of sound emitted by source (f) = 261.63 Hz observed frequency (f') = 370 Hz

Q: Identify an interesting application that is relevant to PHY205, describe it, and explain how it…

A: Solution: An interesting application that is relevant to PHY205 is the operation of solar panels.…

Q: Electron guns are used in X-ray tubes. The electrons are accelerated through a large voltage and…

A: No. Of electron flow in every 2 second in a beam is N= 6.1×1016  Magnitude Charge on an electron…

Q: 2. + Consider the following circuit: 50 V ㅓㅏ 5 μF 15 μF 6 μF I T 8 μF 12 μF A. Find the equivalent…

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Q: A car is parked on a hill. The gravitational force on the car is 9.31 x 103 N straight downward, and…

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Q: A region of space contains a magnetic field pointing straight up along the surface of the page. A…

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Q: A conducting bar rests to complete a circuit and immersed on a uniform magnetic field of B = 0.48 T.…

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Q: A monatomic gas is cooled by 50 K at constant volume when 831 J of energy is removed from it. How…

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Q: Which of the following could be an inertial reference frame? Choose all that apply. DA rocket that…

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Q: Why do we not observe relativistic effects in our daily lives? O Because motion is relative. O…

A: Answer:- Because the speeds we move at are much less than the speed of light.

Q: A current carrying rail of an electric train has a cross section area of 6.3 x 103 m2 and is made of…

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Q: . Two planes move as shown in the figure. Calculate the frequency heard by the aviator of airplane…

A: a)  two planes are approaching each other .  therefore , both their velocities are non zero .  Also…