Answer D, The axis of the earth passes directly through the north star.
Explanation: I did it on usatestprep
the firing. (b) Neglecting air resistance, find the range of this projectile when it is fired
at an angle such that the range equals the maximum height attained.
Answer:
(a) Power= 207.97 kW
(b) Range= 5768.6 meter
Explanation:
Given,
Mass of bullet,
Kinetic energy imparted,
Length of rifle barrel,
(a)
Let the speed of bullet when it leaves the barrel is .
Kinetic energy,
Initial speed of bullet,
The average speed in the barrel,
Time taken by bullet to cross the barrel,
Power,
(b)
In projectile motion,
Maximum height,
Range,
given that,
then,
Answer:
Average speed = 0.0075 m/s
Average velocity = 0.0025 m/s along forward direction
Explanation:
Speed is the ratio of distance and time and velocity is the ratio of displacement and time.
Distance traveled = 10 + 5 = 15 cm = 0.15 m
Displacement = 10 - 5 = 5 cm = 0.05 m
Time = 20 seconds
Average speed = 0.0075 m/s
Average velocity = 0.0025 m/s along forward direction
Hey!
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Formula: Distance / Time = Speed
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Solution:
Speed = 15/20 = 0.75cm/sec
Velocity = 5/20 = 0.25cm/sec
10 + 5 = 15 (distance traveled)
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Answer:
Speed = 0.75cm/sec
Velocity = 0.25cm/sec going forward.
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Hope This Helped! Good Luck!
The originalmomentum of a pencil is distributed equally to the other half of
the pencil.
The pencil breaking into two is as a result of the internalforces acting in
opposite direction which caused the breakage.
The total momentum of a body before collision being equal to the total
momentum of the two objects after collision has occurred which is why the
pencil will have momentum distributed equally in this scenario.
Read more on brainly.com/question/20182620
Answer:
ORIGINAL MOMENTUM OF THE PENCIL GETS DISTRIBUTED TO THE BROKEN HALFS EQUALLY .
Explanation:
GENERALLY :
IN THIS CASE :
(neglecting the impulse and force of gravity)