an egg is thrown straight up at the edge of a 100m cliff with an initial velocity of 20m/s. how long will it take for the egg to hit the ground below?

Answers

Answer 1

Answer:

5 seconds

100 / 20 = 5

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If the absolute temperature of a gas is 600 K, the temperature in degrees Celsius is A. 705°C. B. 327°C. C. 873°C. D. 273°C.
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A very small tilt in Earth’s axis would likely cause ____.
The main difference between a series and a parallel circuit is thata. more components can be added to a parallel circuit. b. the voltage source for a series circuit can be weaker. c. in a series circuit there's only one path for current to flow. d. a parallel circuit can handle components with higher resistances.

Which type of rock is created when lava cools and hardens?

Answers

Igneous rocks are created when lava cools and hardens.

It's probably called Magna rock

Which of the following changes would make a heat engine less efficient

Answers

A heat engine would be less efficient due to many factors
For instance, a heat engine is more efficient when it uses in cold weather because there is a greater temperature difference ( Carnot Efficient )
A heat engine could be less efficient because of friction
Hope it helps I am a beginner

A surface wave on the ocean's surface is an example of a(n) _____ wave.A. gravity
B. seismic
C. mechanical
D. electromagnetic

Answers

C. mechanical is the answer

How does the law of conservation of energy apply to machines?Machines create energy from scratch.

Machines consume energy until no energy remains.

Energy transferred to a machine equals energy transferred from it.

Engineers break the law of conservation of energy by using ma

Answers

Energy transferred to a machine equals energy transferred from it. It is because according to conservation of energy we can't create or destroy energy so, energy remains constant however, their form can be change by machine's

In short, Your Answer would be Option C

Hope this helps!

Answer:

Hope this helps!

Explanation:

In short, Your Answer would be Option C

A soccer ball is kicked horizontally. What is its average speed if its displacement is 55.0 m after 12.00 s? What formula was used to solve this problem?

Answers

4.58 m/s

Speed = displacement / time

Where should an object be placed in front of a concave mirror’s principal axis to form an image that is real, inverted, larger than the object, and farther from the mirror than the object is?

Answers

Answer:

At focus.

Explanation:

When the object is placed at the focus of a concave mirror, the image will form at infinity. The formed image is real and inverted and its size is highly enlarged.

When the object is placed between the pole and the focus, the image will formed behind the mirror. The formed image is virtual and erect and its size is enlarged. This is the only case when the formed image is virtual and erect.

if the object is kept in between the principle axis and the focus but some what nearer to the focus then we will get the enlarge,erect,and real image.

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