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4 years ago

If a fish experiences an a of 9.8m/s2 over a period of 1.84s, what was the 4v?

Physics

1 answer:

777dan777 [17]4 years ago

6 0

Answer:

It’s 18.0 m/s

Explanation:

Use acceleration formula then plug in 9.8 and 1.84s

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Could cellular respiration happen without photosynthesis

photoshop1234 [79]

No it can not because photosynthesis makes glucose and cellular respiration breaks down the glucose in to Carbon Dioxide and H2O (water).
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3 years ago

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A 250 kg car has 6875 kg•m/s of momentum. What is it’s velocity?

liraira [26]

Answer:

v = 27.5 m/s

Explanation:

p = m × v

6,875 = 250 × v

250v = 6,875

v = 6,875/250

v = 27.5 m/s

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3 years ago

If you had to choose one device to use with the battery, what would it be? Do you think such a battery could be invented

maw [93]

Answer:

a phone because it has longer lasting battery

Explanation:

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3 years ago

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In useful fusion, smaller nuclei fuse together into larger nuclei and also produce : black hole entropy

NeTakaya

Answer:

energy from excess mass

Explanation:

The correct answer for the given question out of the given options is the option " energy from excess mass ".

This happens due to the fact that some of the matter is converted into the energy during the fusion of atoms.

The relation that can be stated is E = mc²

where,

E is the energy

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3 0

4 years ago

A ball has m=10 kg and v=10 m/s. It has the same momentum as which of the following?

crimeas [40]

Answer:

Choice d. All three balls listed in choice a, b, and c have a momentum of $100\; \rm kg \cdot m \cdot s^{-1}$ each, same as that of the $10\; \rm kg$ ball moving at $10\; \rm m \cdot s^{-1}$ . Assumption: all four balls are moving in the same direction.

Explanation:

The momentum $p$ of an object is equal to the product of its mass $m$ and its velocity $v$ .

Momentum of a $10\; \rm kg$ ball moving at $10\; \rm m \cdot s^{-1}$ :

$p = m \cdot v = 10\; \rm kg \times 10\; \rm m \cdot s^{-1} = 100\; \rm kg \cdot m \cdot s^{-1}$ .

Similarly:

Momentum of the ball in choice a: $100 \; \rm kg \times 1\; \rm m \cdot s^{-1} = 100\; \rm kg \cdot m\cdot s^{-1}$ .
Momentum of the ball in choice b: $5 \; \rm kg \times 20\; \rm m \cdot s^{-1} = 100\; \rm kg \cdot m\cdot s^{-1}$ .
Momentum of the ball in choice c: $2 \; \rm kg \times 50\; \rm m \cdot s^{-1} = 100\; \rm kg \cdot m\cdot s^{-1}$ .

Hence the conclusion that these balls have the same momentum.

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3 years ago