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yulyashka [42]
3 years ago
9

A boat is traveling at 80 km/hr. How many hours will it take for the boat to cover a distance of 115 km?

Physics
1 answer:
miskamm [114]3 years ago
3 0

Answer:

Explanation:

Givens

d = 115 km

r = 80 km/hr

t = ?

Equation

d = r*T

Solution

115 = 80 * t    Divide by 80

115/80 = t

t = 1.4375 hours.

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In this sense:

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3 years ago
water in a cup and a kettle can have the same temperature even though the quantities are different . give reasons​
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Answer:

The reason is because both are exposed to a virtually infinite heat sink, due to the virtually infinite mass  and of the surrounding environment, compared to the sizes of either the cup or the kettle such that the equilibrium temperature, T_{(equilibrium)} reached is the same for both the cup and the kettle as given by the relation;

\infty M_{(environ)} \times  c_{(environ)} \times (T_2 - T_1) = m_{1} \times  c_{(water)} \times (T_3 - T_2) + m_{2} \times  c_{(water)} \times (T_4 - T_2)

Due to the large heat sink, T₂ - T₁ ≈ 0 such that the temperature of the kettle and that of the cup will both cool to the temperature of the environment

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4 0
3 years ago
Which vector correctly indicates the direction of centripetal acceleration experienced by the car?
gogolik [260]

The answer is C.

I hope this helped!

5 0
3 years ago
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Explanation:

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You are walking down a straight path in a park and notice there is another person walking some distance ahead of you. The distan
Setler79 [48]

Answer:

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