Metric system. important because it saves us time due to the fact that we do not have to convert our units every time.
Explanation:
Given that,
Radius of the disk, r = 0.25 m
Mass, m = 45.2 kg
Length of the ramp, l = 5.4 m
Angle made by the ramp with horizontal,
Solution,
As the disk starts from rest from the top of the ramp, the potential energy is equal to the sum of translational kinetic energy and the rotational kinetic energy or by using the law of conservation of energy as :
(a)
h is the height of the ramp
v is the speed of the disk's center
I is the moment of inertia of the disk,
v = 4.52 m/s
(b) At the bottom of the ramp, the angular speed of the disk is given by :
Hence, this is the required solution.
Answer:
Both technicians are correct.
Explanation:
A working coil in a relay can measure resistance between 50 an 200 ohms.
And the terminals in a Relay are the next, considering the German International Automotive industry standard DIN 72552:
85 Coil
86 Coil
87 NO Normally open
30 Common
So Measuring between terminal 30 and 87 must be an open circuit, and the ohmmeter must show infinite resistance or "OL".
Answer:
20 N
Explanation:
The question above is related to "Newton's Third Law of Motion." It states that <em>every action is being opposed by a reaction of equal size but different direction</em>.
The action force in the situation above is 20 N while the reaction force here is the one coming from the volleyball. So if the action force is <em>20 N </em>then it's a common sense that the reaction force is also<em> 20 N.</em>
Thus, <u>20 N is the amount of force that the volleyball is exerting on Ana.</u>
The angle between incident ray and reflected ray is 60 degree. the value of angle of incidence and angle of reflection is 30 degree