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2 years ago

Which two expeditions did prince Henry of Portugal sponsor

Physics

1 answer:

tino4ka555 [31]2 years ago

4 0

Bartolomeu Dias’s trip around the Cape of Good Hope.Gil Eannes’s trip around Cape Bojador

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What do you know about a laser to predict its performance as a surgical tool? Give at least four factors and explain the signifi

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2 years ago

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 55.0 cm. She finds the pendulum m

forsale [732]

Answer:

Acceleration due to gravity will be $g=5.718m/sec^2$

Explanation:

We have given length of pendulum l = 55 cm = 0.55 m

It is given that pendulum completed 100 swings in 145 sec

So time taken by pendulum for 1 swing $=\frac{145}{100}=1.45sec$

We have to find the acceleration due to gravity at that point

We know that time period of pendulum;um is given by

$T=2\pi \sqrt{\frac{l}{g}}$

So $1.45=2\times 3.14\times \sqrt{\frac{0.55}{g}}$

$\sqrt{\frac{0.55}{g}}=0.230$

Squaring both side

${\frac{0.3025}{g}}=0.0529$

$g=5.718m/sec^2$

So acceleration due to gravity will be $g=5.718m/sec^2$

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3 years ago

A scientist examines a large pot of boiling water and a small cup of boiling water. The scientist determines that the large pot

saul85 [17]

Answer:

d. The large pot of water and small cup of water have the same temperature, but the large pot of water has higher thermal energy.

Explanation:

Temperature is a measure of the average kinetic energy of individual molecules. While internal energy refers to the total kinetic energy of the molecules within the object. Since in this case we have the same amount of average kinetic energy, then the large pot of water and small cup of water have the same temperature. While the large pot of water has higher thermal energy, since has more water particles than the small cup.

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2 years ago

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I need help with question 6 and 7!!! Also, how to do the back???

lora16 [44]

Reword the questions and you’ll get it right

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1 year ago

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A car is traveling at a speed of 45 km/h into town. It takes the car 2 hours to get there. How far has the car traveled?

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