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Wewaii [24]
3 years ago
11

The established value for the speed of light in a vacuum is 299,792,458 m/s. What is the order-of-magnitude of this number?

Physics
1 answer:
Rom4ik [11]3 years ago
6 0

The order of magnitude is 10⁸ .

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a uniform metre rule of mass 100g balances at the 40cm mark when a mass X is placed at the 10cm mark what is the value of x.pls
Blababa [14]

Answer:

The fulcrum of the metre stick is at the 40 cm mark

100 g * 10 cm = 1000 g-cm clockwise torque

x * 30 cm = 1000 gm-cm = counterclockwise torque for balance

X = 1000 / (40 -10) = 1000 / 30 = 33.3 gm  at 10 cm to balance

3 0
3 years ago
Calculate the pressure on a man’s foot when a woman of mass 65 kg steps on his foot with her heel which has an area of 0.12m2 wi
tino4ka555 [31]

Answer:

Pressure = force/area

= 650N/0.12m^2

= 5416.7 to 1 d.p

I got 650N by taking the gravitational field on earth to be 10N/kg.

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= 650

Answer is 5416.7 pascals (Pa)

Or

5308.3 Pa

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Hope this helps!

4 0
3 years ago
What are 2 things Lithium, Beryllium, and Boron, have in common?
ivann1987 [24]

Answer:

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8 0
3 years ago
A cylindrical fishing reel has a mass of 0.7 kg and a radius of 5.24 cm. A friction clutch in the reel exerts a restraining torq
Korolek [52]

Answer:

Explanation:

moment of inertia of reel = 1/2 mr² , m is mass and r is radius of the reel

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= 96.1 x 10⁻⁵

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F  x .0524 - 1.88 = moment of inertia x angular acceleration.

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F  x .0524 - 1.88 = .063

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F = 37.08 N

7 0
3 years ago
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salantis [7]
Hope this helps you.

3 0
3 years ago
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