Question

Airplane flight is best illustrated by
Boyle's law.
Bernoulli's principle.
Archimedes' principle.
Heat law

7 What is the buoyant force acting on a 10-ton ship floating in the ocean
10 tons
more than 10 tons
less than
depends on density of seawater

8 How much pressure do you experience, when you balance a 5 kg ball on the tip of your finger, which has an area of
1cm2?
490 kPa
4600 Pa
34 N
No answer

9 If you wish to warm 100 kg of water by
20oC
for your bath, how much energy is required? (Specific heat capacity of water is
1cal/goC
500 kcal
1000 kcal
2000 kcal.
3000 kcal

Answer 1

Answer on question #52085, Physics, Field Theory

Question 6.Airplane flight is best illustrated by

Boyle’s law.

Bernoulli’s principle.

Archimedes’ principle.

Heat law

7 What is the buoyant force acting on a 10-ton ship floating in the ocean

10 tons

more than 10 tons

less than

depends on density of seawater

8 How much pressure do you experience, when you balance a 5 kg ball on the tip of your finger, which has an area of 1 cm^{2}?

490 kPa

4600 Pa

34 N

No answer

9 If you wish to warm 100 kg of water by 20oC for your bath, how much energy is required? (Specific heat capacity of water is 1cal/goC

500 kcal

1000 kcal

2000 kcal

3000 kcal

Solution 6.Airplane flight is best illustrated by Bernoulli’s principle.

7.10 tons

$8.p=\frac{F}{S}=\frac{5\cdot 9.8}{10^{-4}}=490\,kPa$

$9.Q=cm\Delta T=1000\cdot 100\cdot 20=2000\,kcal$

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