Answer:
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Explanation:
Using a free body diagram, it is proved that when the object starts to slide, the tangent of the angle of inclination is equal to the coefficient of static friction:
Hence, you can use that formula directly:
Rounding to the nearest degree that is 31º.
Answer:
Mercury is the smallest planet, but its surface gravity is about the same as that of the larger Mars, because Mercury is denser. As such, Saturn is much larger than Earth, but not very dense, so the gravity on Saturn is roughly the same as on Earth. Mars: 0.38 G. Jupiter: 2.53 grams.
Answer:
Explanation:
Given
mass of sailboat 16300 kg
Eastward Force=17300 N
Northwest Force=59000
Resultant Force F is given by vector addition of two
|F| gives resultant magnitude
|F|=48340.48 N
therefore acceleration is given by
Answer:
n = 1,875
Explanation:
The speed of light in vacuum is constant (c) and in a material medium it is
v = d / t
The refractive index of a material is defined by
n = c / v
Let's look for the speed of light in the material, in general the length that light travels is known, this value is high, x = 1, when we place a block on the road, a small amount is lengthened by the length of the block, which in general is despised
These measurements are made on a digital oscilloscope that allows to stop the signals and measure their differences, that is, the zero is taken when the first ray arrives and the time for the second ray is measured,
v = d / t
v = 1 / 6.25 10⁻⁹
v = 1.6 10⁸ m / s
we calculate the refractive index
n = 3 10⁸ / 1.6 10⁸
n = 1,875