The SI unit that is used to measure time is the

Physics

2 answers:

SOVA2 [1]3 years ago

5 0

Answer:

The SI unit that is used to measure time is the 'second'.

Explanation:

The International System of Units has defined seven units of measure which are considered as a basic set from which all other SI units can be derived.

Hence, the base unit defined to measure the time is second. It is defined by the oscillations of the radiation which correspond to the transition between two levels of the caesium atom.

Sunny_sXe [5.5K]3 years ago

4 0

Answer:second

Explanation:

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That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.

liraira [26]

Answer:

The answer is " $0.13562748$ "

Explanation:

Please find the complete question in the attached file.

Using formula:

$\bold{U_s=\frac{v^2}{rg}}$

Given:

$r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}$

put the value into the above-given formula:

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2 years ago

B⃗ is kept constant but the coil is rotated so that the magnetic field, B⃗ , is now in the plane of the coil. How will the magne

s344n2d4d5 [400]

Answer:

The flux decreases because the angle between B⃗ and the coil's axis changes.

Explanation:

The flux through the coil is given by a dot product, between the magnetic field and the vector representing the area of the coil.

$\Phi = \vec{B}\cdot \vec{S} = BScos(\theta)$

The latter vector has direction perpendicular to the plane in which the area of the coil is, and magnitude equal to the area of the coil. As in the attached image, the vector S is the vector respresenting the area of the coil.

Therefore, the flux will be maximum when the vector S is in the same direction as B, and will be zero when they are perpendicular.

Now, if the coil is rotated so that the magnetic field is in the plane of the coil then, the vectors S and B are perpendicualr, and there will not be net magnetic flux, that is, the flux will decrease.