Answer:
I think -7 N. Netforce is 3N-10N= -7N
Explanation:
Answer:
Explanation:
Refractive index f the medium, n = t
Let the angle of incidence is i
(a) As given in the question, the angle of refraction is half of angle of incidence.
Let the angle of refraction is r
r = i / 2
By use of Snell's law
By substituting the values, we get
By using the formula of trigonometry
Sin2Ф = 2 SinФ CosФ
So, 
(b) For glass, the value of refractive index is 1.5, so the above expression becomes
i = 82.8°
Answer:
One well-known application of density is determining whether or not an object will float on water. If the object's density is less than the density of water, it will float; if its density is less than that of water, it will sink. ... In fact, submarines dive below the surface of the water by emptying their ballast tanks.
HOPE IT HELPS
Answer:
d. Increase the velocity of the ride and decrease the radius
Explanation:
The normal force in the amusement park ride is produced by the centripetal force. The formula for this force is given as follows:
Fn = mv²/r
where,
m = mass of the body,
v = velocity of the body
r = radius of the path
Therefore, it is clear from the formula that force has a direct relation with the square of velocity and inverse relation with the radius of path. Hence, the design that will enable the rider to feel the greatest Fn will be:
<u>d. Increase the velocity of the ride and decrease the radius</u>
Answer:
sit on the toilet and push
Explanation:
after you got it all out get the toilet paper and maybe combine squares by a little bit and wipe.
