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yanalaym [24]
2 years ago
13

What is the cow's average velocity to reach the apples?

Physics
1 answer:
docker41 [41]2 years ago
3 0

Answer:1.). -0.65

2.). 0.65

Explanation:

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This image below shows a ship using sonar to map the seafloor. pls help i need this :(
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Answer:

d and i think a?

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Light travels 300,000,000 m/s, and one year has approximately 32,000,000 seconds. a light year is the distance light travels in
irina [24]
300 000 000 m/s  in km/s

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300 000 000 m/s  = 3 * 10⁸ m/s =  3 * 10⁵ *10³ m/s

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3 years ago
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What is the resistance ofa wire made of a material with resistivity of 3.2 x 10^-8 Ω.m if its length is 2.5 m and its diameter i
Katarina [22]

R = 0.407Ω.

The resistance  R of a particular conductor is related to the resistivity ρ of the material by  the equation R = ρL/A, where ρ is the material resistivity, L is the length of the material and A is the cross-sectional area of ​​the material.

To calculate the resistance R of a wire made of a material with resistivity of 3.2x10⁻⁸Ω.m, the length of the wire is 2.5m and its diameter is 0.50mm.

We have to use the equation R = ρL/A but first we have to calculate the cross-sectional area of the wire which is a circle. So, the area of a circle is given by A = πr², with r = d/2. The cross-sectional area of the wire is A = πd²/4.  Then:

R =[(3.2x10⁻⁸Ω.m)(2.5m)]/[π(0.5x10⁻³m)²/4]

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5 0
3 years ago
A 1,500 kg car hits a boulder with a force of 500 N, and the collision takes 0.5
Anuta_ua [19.1K]

Answer: C.

250 kg-m/s

Explanation:

Given that the

Mass M = 1,500 kg

Force F = 500 N

Time t = 0.5 seconds

From Newton's second law of motion which state that the rate of change of momentum is proportional to the applied force.

F = mV/t

Ft = mV

Where ft = impulse: the product of time and applied force

Substitutes force and time into the formula

Ft = 500 × 0.5 = 250 Ns

7 0
3 years ago
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