The normal force on the block at the given inclined plane is 67.61 N.
The given parameters:
- Inclination of the plane, θ = 15.0°
- Weight of the block, W = 70 N
<h3>What is Normal force?</h3>
The normal force on object is the upward force on the object due to its weight acting downwards.
The normal force on the block is calculated as follows;
Fₙ = mgcosθ
Fₙ = Wcosθ
Fₙ = 70 x cos(15)
Fₙ = 67.61 N
Thus, the normal force on the block at the given inclined plane is 67.61 N.
Learn more about normal force here: brainly.com/question/14486416
To obtain the vertical component of the velocity, it is necessary to multiply the velocity at this time by sin 45 degrees. Since the velocity is not given, it must be solved first by dividing the distance by the time. To show this:
Velocity = distance / time
Velocity = 30 m / 4s
Velocity = 7.5 m/s
Vertical velocity = 7.5 sin 45
Vertical velocity = 5.3 m/s
by the formula of spring force we know that
here we know that
now we will have
now by similar way if the stretch in spring is 0.25 m
force is given by
so it will require F = 250 N force
<h3>Apparent magnitude of star:</h3>
Apparent magnitude of a star is how bright it appears on earth.
<h3>Absolute magnitude of star:</h3>
Absolute magnitude of star is how bright it appear from a distance of 32.6 light years from earth.
Due to farthest distance of star from earth, it appears smaller. But when we look at it from near it will appear greater in size or magnitude. That is why, we can say that absolute magnitude of some stars is greater than their apparent magnitude.
Answer:
Solubility increases with temperature.
Explanation:
-Increasing temperatures, increases the kinetic energy that allows solvent molecules to more effectively break apart the solute molecules.
-This solute molecules are held together by intermolecular attractions which weakens in higher temperatures.
-Solubility therefore increases with increasing temperatures.
