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Goryan [66]
3 years ago
7

A northfield raider defensive back runs 20 m in 2.5 s what’s the average speed

Physics
1 answer:
Kaylis [27]3 years ago
5 0
The average speed is 8 miles
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Your answer would be Truck 2.
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Heliocentric theory:
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It's nighttime, and you've dropped your goggles into a 3.2-mm-deep swimming pool. If you hold a laser pointer 1.1 mm above the e
Savatey [412]

Answer: 5.30m

Explanation:

depth of pool = 3.2 m

i = 67.75°

Using snell's law, we have,

n₁ × sin(i) = n₂ × 2 × sin(r)

n₁ = 1, n₂ =1.33, r= 44.09°

Hence,

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2.2 + d×tan(r) = 2.2 + (3.2 × tan(44.09°) =5.30m

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3 years ago
If my weight on Earth is 140lbs, what is my mass?
SashulF [63]

Answer:

63.57 kg

Explanation:

weight = 140 lbs

Let the mass  is m.

1 lbs = 4.45 N

The weight of an object is defined as the force with which our earth attracts the body towards its centre.

Weight is the product of mass of the body and the acceleration due to gravity of that planet.

W = m x g

On earth surface g = 9.8 m/s^2

Now convert lbs in newton

So, 140 lbs = 140 x 4.45 = 623 N

So, m x 9.8 = 623

m = 63.57 kg

Thus, the mass is 63.57 kg.

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3 years ago
The gravitational force between two objects is represented by the variable F. If the distance is decreased by 5 what is the new
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The universal law of gravitation states that:

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It means that if the gravitational force is F, then if the distance is decreased by 5 times, then the new gravitation force is:

F/5² = F/25

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3 years ago
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