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Archy [21]
3 years ago
6

A balloon drifts 50 m toward the east in 6 s; then the wind suddenly changes and the balloon flies 30 m toward the west in the n

ext 5 s. What was the balloon's total velocity?
Physics
1 answer:
bearhunter [10]3 years ago
5 0

Explanation:

you take 50 divide by 6 to get the speed and you also do the same as the other one then after you find both speed you first change in km/h and add

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Which factors affect heat transfer between a warm and a cool substance?
andrey2020 [161]

Answer: B

Explanation:

It's not the time it took to heat the substance, so that rules out A and C.

This means that we only have to choose between

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Area of contact matters more (e.g. an object with greater surface area is exposed to the air more, will lose/gain heat quicker than an object with less surface area).

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3 years ago
Upthrust given by Water to the body
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According to Archimedes principle the upthrust on the body is equal to the weight of the water displaced by the body. ... Here, the mass would be the net difference in the weight of the object.

7 0
3 years ago
Listed below are four activities. In which activity is friction useful?
Likurg_2 [28]

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a. climbing up a cliff

Explanation:

4 0
2 years ago
An object's inertia causes it to come to a rest position.
stellarik [79]

Answer:

no

Explanation:

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3 0
2 years ago
With what magnitude of force does a ball of mass 0.75 kilograms need to be hit so that it accelerates at the rate of 25 meters/s
SSSSS [86.1K]

Answer:

Assume that the ball undergoes motion along a straight line. ... F = m A Force = (mass) x (acceleration) The question tells you the mass and the acceleration. All YOU have to do is take the numbers and pluggum into Newton's 2nd law. F = m A = (0.75 kg) (25 m/s²) = (0.75 x 25) kg-m/s² = 18.75 Newtons .

Explanation:

i looked it up ok

8 0
3 years ago
Read 2 more answers
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