Answer:
A - 0 N
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A prolonged blast (lasting at least 4 seconds) from a vessel in the water is a warning to other vessels in the vicinity that there are vessels in the water that may be difficult to see.
Poor visibility could be due to fog. It is also likely that unseen vessels could appear suddenly around turns or bends, and that it ma not be safe to maneuver without colliding with the unseen vessel.
What should you do when you hear a blast?
a. Reply with a blast of your own to warn other vessels.
b. Slow down in order to better deal with low visibility or coming suddenly upon hidden stationary vessels.
Answer: v = 43.98 m/s
Explanation: 22 + 15.7x1.4 = 43.98.
Hope this helps!
<span>P1V1/T1=P2V2/T2
isolate V2 and calculate
remember the temperature has to be in Kelvin
K=C+273
the pressure in this case is not necessary to convert to atm you can use the mmHg you will get the same answer</span>
Answer & Explanation:
A fast-moving ball always possesses kinetic energy and to stop it from moving, you have to do the same amount of work i.e. expend the same amount energy in the opposite direction to the ball.
During impact: The amount of work done in stopping the ball (force * distance) = the kinetic energy of the ball
If you hold your hand in a steady position the ball tend to hit and travel within a shorter distance thereby making you be in need of a greater force to stop the ball but if you move your hand in the same direction to the ball, the ball travel within a longer distance thereby reducing the force needed to stop the ball.