What is Electrostatics
2 answers:
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Answer:
51,882 J
Explanation:
In order to convert the heat from calories to joule, we must remember the conversion factor:
1 cal = 4.184 J
Keeping in mind this, we can set up a proportion to find how much Joules correspond to 12,400 calories:
Answer:
r = 22.3 cm
Explanation:
given,
angular speed = 45 rev/s
tangential speed = 63 m/s
length of the rotating string
angular velocity =
ω = 2 π N
ω = 2 π x 45
ω = 282.74 rad/s
we know,
v = r ω
r = 22.3 cm
1250 N of force is required to accelerate a 250 kg motorcycle at a rate of 5 m/.
<u>Explanation:</u>
As per the second law of motion stated by Newton, the net unbalanced external force acting on any object is directly proportional to the product of mass and acceleration experienced by the object.
As here the object is given as motorcycle of mass 250 kg. Also the acceleration exhibited by the motorcycle is stated as 5 m/. So from the Newton's second law of motion,
Net force = Mass of the motorcycle× Acceleration of the motorcycle
Net force = 250 × 5 = 1250 N.
Thus, 1250 N of force is required to accelerate a 250 kg motorcycle at a rate of 5 m/.