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Ivahew [28]
4 years ago
7

Which has the most kinetic energy from its motion?

Physics
1 answer:
victus00 [196]4 years ago
6 0

Answer:

option c

Explanation:

K.E=1/2mv(squared)

K.E=1/2x900x80x80

K.E=450x6400=2880000J

convert to KJ=2880000/1000=2880KJ

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In the image, not to scale, which phase of the moon would you observe from earth?​
timofeeve [1]

Answer:

The "new" moon phase is being shown because the moon shown is directly between the sun and earth and is not visible from the earth because of the brightess of the sun.

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3 years ago
Which of the following exhibits parabolic motion?
harina [27]
Parabolic Motion<span> of Projectiles. A projectile is an object upon which the only force is gravity. Gravity, being a downward force, causes a projectile to accelerate in the downward direction.

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4 years ago
A car is a compound machine true or false
Viktor [21]
True is the answer. I believe
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3 years ago
The temperature coefficient of a certain conducting material is 5.74 × 10-3 (°C)-1. (a) At what temperature would the resistance
Alex777 [14]

Answer:

Temperature at which the resistance is twice the resistance at 20^{\circ}C is 194.216^{\circ}C

Solution:

As per the question:

Temperature coefficient, \alpha = 5.74\times 10^{- 3}^{\circ}C

Reference temperature, T_{o} = 20^{\circ}C

Resistance, R_{t} = 2R_{o}

Now, using the formula:

R_{t} = R_{o}(1 + \alpha \Delta T)

2R_{o} = R_{o}(1 + \alpha \times (T _ T_{o}))

2 = 1 + 5.74\times 10^{- 3}\times (T - 20^{\circ})

\frac{1}{5.74\times 10^{- 3}} = T - 20^{\circ}

T = 174.216 + 20 = 194.216^{\circ}

  • Yes, this temperature holds for all all the conductors of copper, irrespective of the size and shape of the conductor.

5 0
3 years ago
The p wave on an electrocardiogram represents __________.
Harrizon [31]

It represents the depolarization of the atria.

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In an ordinary ECG, there's three particular waves. The primary wave is the P wave, which speaks to the depolarization of the atria. This happens directly before the atria agreement and drive blood into the ventricles. The following wave is known as the QRS wave.

3 0
3 years ago
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