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N76 [4]
3 years ago
10

An object has an average acceleration of +6.18 m/s2 for 0.266 s . At the end of this time the object's velocity is +9.90 m/s .

Physics
1 answer:
Archy [21]3 years ago
4 0

At the start of the 0.266 s, the object's speed was 8.26 m/s.

The question can only be talking about speed, not velocity.

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What is the velocity of an object that has been in free fall for 1.5s?
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Answer:

D. 15 m/s downward

Explanation:

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v = -14.7 m/s

Rounded to two significant figures, the answer is D, 15 m/s downward.

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Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. A small coil is
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Answer:

0.125 volts

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One such device generates a magnetic field within the brain that rises from zero to 1.5 T in 120 ms.

We need to find the induced emf within a circle of tissue of radius 1.6 mm and that is perpendicular to the direction of the field. The formula for the induced emf is given by :

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\epsilon=-\dfrac{d(BA)}{dt}\\\\=2\pi r\times \dfrac{dB}{dt}\\\\=2\pi \times 1.6\times 10^{-3}\times \dfrac{1.5-0}{120\times 10^{-3}}\\\\=0.125\ V

So, the induced emf is equal to 0.125 volts.

7 0
3 years ago
A chart labeled table A : effect of height on temperature with initial temperature as 25 degrees Celsius, mass w is 1.0 kilogram
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Answer:

100m: 4.9 kJ

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Explanation:

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3 years ago
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Learning Task 1: Determine what kind of carbon allotropes are the given pictures
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Answer:

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I hope this helps. thank you

Explanation:

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Nataly_w [17]

Answer:

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Explanation:

The question says that, "A mobile advances at 20 m / s and travels a distance of 800 km. Determine the time in hours you use".

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So,

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So, it will take 11.1 hours.

7 0
3 years ago
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