Answer:
Explanation:
GIVEN DATA:
Engine operating speed nf = 8325 rev/min
engine angular speed ni= 12125 rev/min
motorcycle angular speed N_m= - 4.2 rev/min
ratio of moment of inertia of engine to motorcycle is given as
Answer:
Explanation:
Given
Initial angular speed of engine()=8325 rpm
Final angular speed of engine()=12125 rpm
Initial angular speed of Motorcycle()=0 rpm
Final angular speed of engine()=4.2 rpm
as there is no external torque therefore angular momentum remains conserved
Weight is defined as a body's mass multiplied by its acceleration due to gravity.
Test Book's weight on mars = 8.1 N.
Weight = (mass) x (gravity)
= (2.2 kg) x (3.7 m/s^2)
= 8.1 newtons
To learn more about : Mass
Ref : brainly.com/question/25623677
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Alejandra does 3375 Joules of work against gravity when she climbs to the ledge at the top of the climbing wall.
In order to calculate the work done against gravity, we can use the formula: Work = Force x Distance. The force of gravity can be calculated using the equation: Force = mass x acceleration due to gravity. Given that Alejandra weighs 225 newtons and the distance she climbs is 15 meters, we can plug these values into the formula to find the work done:
Work= (225 N) x (15 m) = 3375 Joules
Therefore, Alejandra does 3375 Joules of work against gravity when she climbs to the ledge at the top of the climbing wall.
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kinetic energy of an apple
Gravity is present when a block hangs at rest from a piece of rope. The block remains in equilibrium, suspended by the tension in the rope which is equal and opposite to the gravitational force acting on the block.
In the scenario where a block hangs at rest from the ceiling by a piece of rope, gravity is indeed present. The force of gravity, often referred to as weight, acts downwards on the block. However, the block is not falling because there is an equal and opposite upward force - this is the tension in the rope. According to Newton's second law, the tension in the rope must be equal to the weight of the block for it to remain in equilibrium and not move. The tension in the rope and the gravitational force on the block are equal in magnitude but opposite in direction, which sums up to zero net force, hence the block is at rest.
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