A uniformly charged ring of radius 10.0 cm has a total charge of 50.0 μC Find the electric field on the axis of the ring at 30.0
1 answer:
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Answer:
The coefficient of kinetic friction is 0.382.
Explanation:
Given:
Angle of inclination is, °
Mass of package is,
Initial speed of package is,
Final speed of the package at the bottom is,
Distance of travel along the incline is,
Acceleration due to gravity is,
Let the coefficient of kinetic friction be .
Now, the frictional force will be acting along the incline but in the direction opposite to the direction of motion.
So, the net acceleration acting on the package will be up the incline and is equal to:
----------------- 1
Now, using equation of motion, we have:
Solving for 'a', we get:
Now, plug in the value of 'a' in equation (1). This gives,
( Neglecting negative sign)
Plug in all the given values and solve for . This gives,
Therefore, the coefficient of kinetic friction is 0.382.
Answer:
734.215N
Explanation:
First we calculate the angle that corresponds to a 5% slope using the Tan-1 function
then we use the component that corresponds to the direction parallel to the road, additionally we must multiply by the gravity value to find the weight(g=9.81m/s^2)
Wx=M*g*sen(2.86)=1500kg*9.81*sen(2.86)=734.215N
Velocity 0.86m/s
0.13J
Explanation:
Given parameters:
Mass = 0.343kg
distance = 5m
time taken = 5.8s
Unknown:
Velocity of mass = ?
Kinetic energy = ?
Solution:
Velocity is the rate of change of displacement with time. It is a vector quantity that shows magnitude and direction.
Mathematically;
Velocity =
Velocity = = 0.86m/s
Kinetic energy is the energy due to the motion of a body. It is expressed mathematically as:
Kinetic energy =
m is the mass
v is the velocity
Kinetic energy = = 0.13J
learn more:
Kinetic energy brainly.com/question/6536722
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