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bogdanovich [222]
3 years ago
5

Is the answer is right?

Physics
1 answer:
vladimir2022 [97]3 years ago
6 0

Answer:

Yes please

Explanation:

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A roller coaster car starts from the rest from a first summit, descends a vertical distance of 45 meters and then climbs a second summit, reaching the top with a speed of 15m / s. How high is the second summit? Do not consider friction


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3 years ago
The acceleration of a bus is given by ax (t) = at, where a = 1.2 m/s3.If the bus's velocity at time t = 1.0s is 5.0 m/s, what is
goldenfox [79]

We are given the acceleration of the bus as a function of time:

a(t) = 1.2t

Let the velocity also be a function of time v(t).

Since a(t) is the change of v(t) over time, we can use the fundamental theorem of calculus to determine the velocity at t = 2s, or v(2), given that:

a(t) = 1.2t

v(1) = 5

v(2) - v(1) = \int\limits^2_1{a(t)}\,dt

v(2) - 5 = \int\limits^2_1{1.2t}\,dt

v(2) - 5 = 0.6t² evaluated between t = 1 and t = 2

v(2) - 5 = 0.6(4) - 0.6(1)

v(2) = 1.8 + 5

v(2) = 6.8m/s

3 0
3 years ago
The Milky Way is an example of which type of galaxy?
tankabanditka [31]
The mily way is an example of D. Barred spiral galaxy
5 0
3 years ago
Explain how sound is being produced from this 'Stomp' group.
Ira Lisetskai [31]

Answer:

Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. As the particles vibrate, they move nearby particles, transmitting the sound further through the medium. The human ear detects sound waves when vibrating air particles vibrate small parts within the ear.

In many ways, sound waves are similar to light waves. They both originate from a definite source and can be distributed or scattered using various means. Unlike light, sound waves can only travel through a medium, such as air, glass, or metal. This means there’s no sound in space!

Explanation:

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3 years ago
What wave property is shown
pantera1 [17]

Answer:

The answer is Refraction

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