Login
Premium
Home Question Bank Physics Archive 2024 November 25

Physics Questions from Nov 25,2024

Browse the Physics Q&A Archive for Nov 25,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

error msg
91) A stationary ship A sends two sound signals to another stationary ship B, one signal through air and the other through water. If the signal that is transmitted in air reaches ship B after that transmitted in water by 6 s , then the distance between the two ships is: \( \begin{array}{llll}\text { (Given that: The speed of sound in air is } 340 \mathrm{~m} / \mathrm{s} \text { and in water is } 1480 \mathrm{~m} / \mathrm{s} \text { ) } \\ \begin{array}{llll}\text { a) } 13.8 \times 10^{-4} \mathrm{~km} & \text { b) } 2.65 \mathrm{~km} & \text { c) } 1658.9 \mathrm{~km} & \text { d) } 12648.42 \mathrm{~km}\end{array}\end{array} \). 67 L'atleta \( A \), fermo sul posto di partenza, parte all'inseguimento di un secondo atleta \( B \) che corre con una velocità costante di \( 4,00 \mathrm{~m} / \mathrm{s} \). L'atleta \( A \) scatta proprio nel momento in cui \( B \) gli passa davanti, e dopo la partenza si muove con un'acce- lerazione costante di \( 2,00 \mathrm{~m} / \mathrm{s}^{2} \). Determina: a. dopo quanto tempo \( A \) raggiunge \( B \); b. lo spostamento compiuto da \( A \) fino a quell'istante; c. quale velocità raggiunge \( A \). \( [4.00 \mathrm{~s} ; 16,0 \mathrm{~m} ; 8,00 \mathrm{~m} / \mathrm{s} \) ] b) An electrical overhead transmission line has a length of 90.0 m between its supports at \( 16^{\circ} \mathrm{C} \). Its length increases by 95 mm at \( 55^{\circ} \mathrm{C} \). Determine the coefficient of linear expansion of the ma- terial of the line. 603 Sapendo che la massa di un protone vale \( 1,7 \cdot 10^{-23} \mathrm{ge} \) quella dell'elettrone è uguale a \( 9,1 \cdot 10^{-28} \mathrm{~g} \), determina il rapporto tra le due masse utilizzando le proprietà delle potenze. \[ \left[\simeq 1,9 \cdot 10^{4}\right] \] You throw a stone horizontally at a speed of \( 5.0 \mathrm{~m} / \mathrm{s} \) from the top of a cliff that is 78.4 m high. a) How long does it take the stone to reach the bottom of the cliff? Ahs: 4.0 s b) How far from the base of the cliff does the stone hit the ground? Ans: 20 m c) What are the horizontal and vertical components of the stone's velocity just before it hits the ground? Ans: \( 39.2 \mathrm{~m} / \mathrm{s} \) A bus starts from rest and accelerates uniformly to a speed of \( 80 \mathrm{~km} / \mathrm{h} \) in 4 hours It mainfains this speed It another 6 hours before decelerafing uniformly to rest in 3 hours. a) Draw a velocity - time graph to show the journey. b) Determine: i) The acceleration, in \( \mathrm{km} / \mathrm{h}^{2} \), during the first 4 hours ii) The retardation, in \( \mathrm{km} / \mathrm{h}^{2} \), during the last 3 hours. iii) The average speed for the entre journey in \( \mathrm{km} / \mathrm{h} \). An object was placed 30 cm from a lens, and an upright imaginary image was formed. 1 Yellowish on the same side as the body and 20 from the lens. My dear, zoom in, then find the focal length of the lens and indicate its type. 20. A periodic longitudinal wave that has a frequency of 20.0 Hz travels along a coiled spring toy. If the distance between successive compressions is 0.600 m , what is th speed of the wave? A convex lens has a focal length of 15 cm. Find the position and type of image. The object formed by it is located 30 cm away from it and calculate the magnification. An object was placed 30 cm from a lens, and an upright imaginary image was formed. 1 Yellowish on the same side as the body and 20 from the lens. My dear, zoom in, then find the focal length of the lens and indicate its type. , (a) Why we observe damped harmonic motion in RLC circuit? (b) The equation of displacement of a simple harmonic oscillator is \( x=A \cos (\omega t+\pi) \). Plot displacement vs. time and acceleration vs. time graphically. What is the phase difference between displacement and acceleration? (c) Draw a transverse wave and show the wavelength on the wave.
Prev 1
...
4 5 6 7 8
...
19 Next
1
...
4 5 6 7 8
...
19
Prev Next
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy