3 years ago

Please help me with this question

Physics

1 answer:

topjm [15]3 years ago

7 0

Answer:

Answer is option d

Explanation:

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Alvin paddled for 44 hours with a 33-km/h current to reach a campsite. The return trip against the same current took 77 hours.

sveta [45]

Answer:

121km/h

Explanation:

Let speed of boat=xkm/h

Speed of water flow=33 km/h

Speed upstream=(x-33)km/h

Speed downstream=(x+33)km/h

Time=44 hrs

Time =77 hrs

We have to find the speed of boat.

$Distance=Speed\times time$

Using the formula

Upstream distance=Downstream distance

$(x-33)\times 77=(x+33)\times 44$

$77x-2541=44x+1452$

$77x-44x=1452+2541$

$33x=3993$

$x=\frac{3993}{33}=121$

Hence, the speed of boat=121km/h

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4 years ago

During crystallisation the crystals separate out from the hot ________solution of a substance on cooling

alekssr [168]

Answer:

The process of separation or deposition of crystals from a hot saturated solution on gentle cooling of the solution is called 'crystallisation'.

Explanation:

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3 years ago

As stream velocity decrease, which factor will likely increase?

stepan [7]

I think the answer is c

6 0

4 years ago

Read 2 more answers

Can some help me, please?

cestrela7 [59]

Answer:

1. Transform Boundary

2. Continental-continental convergent boundary

3. Oceanic-Oceanic Divergent boundary

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3 years ago

A chlorine atom reacts with a sodium atom to form sodium chloride, NaCl A chlorine atom can also react with another chlonne

sammy [17]

Answer:hydrogen peroxide

Explanation:

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4 years ago

Please help me with this question​

Please help me with this question