The frictional force is 218.6 N
Explanation:
The block in the problem is at rest along the inclined surface: this means that the net force acting along the direction parallel to the incline must be zero.
There are two forces acting along this direction:
- The component of the weight parallel to the incline, downward along the plane, of magnitude
where
m = 46 kg is the mass
is the acceleration of gravity
is the angle of the incline
- The (static) frictional force, acting upward, of magnitude 
Since the block is in equilibrium, we can write
And substituting, we find the force of friction:
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A stationary charge is located between the poles of a horseshoe magnet. The magnetic force exerted by the charge is zero.
<h3>What is charge?</h3>
Charge is the physical property of matter which cause a particle to attract or repel when placed in its field.
A stationary charged particle does not interact with a static magnetic field. A charge placed in a magnetic field experiences a magnetic force. There will be no magnetic force acting on a stationary charge. The charge must be moving in order to have magnetic force on it.
Thus, the magnetic force exerted by the charge is zero.
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Answer:
The building is 61.19 m tall, approximately.
Explanation:
From the parabollic movement trayectory equation,
where H is the initial height of the ball and 
and 
the inital velocities in the vertical and horizontal direction, respectively; we have
.
In this case, the ball landed at the coordinates 
, so
.
Answer:
the answer to your question is C, Amount of mass in a given volume
Explanation:
Answer:
they point north and south directionwhen suspende freely
the poles exist in pairs
they attract magnetic substance
