tracyrios98
03.05.2021 •
Physics
PLEASE HELP
Two railway carriages collide and move off together. Carriage A has a mass of 12,550 kg and
moves at 5.2 m/s before the collision. Carriage B has a mass of 8.200 kg and is stationary before
the collision. What is the velocity of the two carriages after the collision?
Solved
Show answers
More tips
- C Computers and Internet Porn Banner: What It Is and How to Get Rid Of It?...
- C Computers and Internet Отправляем смс через интернет: легко и просто...
- L Leisure and Entertainment The Best Film of 2010: A Look Back at the Academy Awards...
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
Answers on questions: Physics
- P Physics 3. which of the following statements about features on the sun is true? a.) prominences look dark in regular photographs. b.) solar flares form when prominences connect....
- P Physics Which elements symbol could replace the question mark in the diagram?...
- P Physics Identify two simple machines in this compound machine. a. screw, lever b. screw, incline plane c. double pulley d. lever, pulley...
- P Physics All forces result because of ? between objects?...
- P Physics (b) what would the radius of the earth be if its matter were compressed to the same density as that of a carbon nucleus? (the earth’s average radius is 6.4 103 km, and its...
- P Physics Most of the cell’s energy is produced in rod-shaped organelles called (powerhouse of the cell). question 3 options: mitochondria nuclei vacuoles cell walls...
- P Physics Name two elements that have similar properties. how can you tell using the periodic table?...
- P Physics Which would cause the largest increase in a mountain climber’s gravitational potential energy?...
- P Physics Visible light represents a very small portion of the electromagnetic spectrum. radiation to the left in the image, such as microwaves, has a longer wavelength than visible...
- P Physics An airplane flies 12 m/s due north with a velocity of 35.11 m/s. how far east does it fly?...
Ответ:
the force is perpendicular to the speed, it is a type of force that changes the direction of the speed, as in the uniform circular motion te, but does not change its modulus.
Explanation:
The magnetic force is given by the expression
F = q v x B
The bold are vectors, where v is the velocity and B is the magnetic field, the product is the cross product whose result is a vector perpendicular to the two vectors (v and B)
From the above, the force is perpendicular to the speed, it is a type of force that changes the direction of the speed, as in the uniform circular motion te, but does not change its modulus.
Even when the change in direction is real and is caused by a centripetal force
For there to be a change in the velocity modulus there must be a force parallel to the velocity direction, generally a force in electrical