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erastova [34]
3 years ago
9

1. A roller coaster car rapidly picks up speed it as it rolls down a slope. As it starts

Physics
1 answer:
goldfiish [28.3K]3 years ago
6 0

Answer:

Average acceleration = 6m/s²

Explanation:

Given the following data;

Initial velocity, u = 4m/s

Final velocity, v = 22m/s

Time, t = 3 seconds

To find the average acceleration;

Acceleration = (v - u)/t

Substituting into the equation, we have;

Acceleration = (22 - 4)/3

Acceleration = 18/3

Acceleration = 6m/s²

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A multi-dimensional being reaches down to Earth and pulls you out of the universe. You are then thrown back into the universe at
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You are in an early universe.

In the study of the evolution of the universe, it has been determined before Plank time (before the big bang and right after it), the early universe had the following characteristics:

  • There was only one single force acting over all that existed.
  • The early universe was very hot and dense because all matter had contracted before the big bang.
  • Space and time were wrapped.

These characteristics match the ones described, based on this, we can conclude you are in an early universe.

Learn more about universe in: brainly.com/question/9724831

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2 years ago
Why is it advised not to hold the thermometer by its bulb while reading it?
Fiesta28 [93]
Because your body heat might change the temperature
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2 years ago
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A constant magnetic field passes through a single rectangular loop whose dimensions are 0.42 m x 0.54 m. The magnetic field has
olga_2 [115]

Answer:

0.29887\ \text{V}

Explanation:

A = Area = 0.42\times0.54\ \text{m}^2

B = Magnetic field = 1.7 T

\theta = Angle that magnetic field makes with the plane of the loop = 71^{\circ}

t = Time = 0.42 s

EMF is given by

\varepsilon=A\cos\theta\dfrac{dB}{dt}\\ =\dfrac{0.42\times 0.54\times\cos 71^{\circ}\times 1.7}{0.42}\\ =0.29887\ \text{V}

The magnitude of the average emf induced in the loop is 0.29887\ \text{V}.

8 0
2 years ago
Complete the passage.
nataly862011 [7]

Answer:

Answer: Sound waves and some earthquake waves are longitudinal waves. Ocean, light and other earthquake waves are transverse waves.

Explanation:

There are 2 types of waves:

1. Longitudinal waves: These waves are defined as the waves in which the particles of the medium move in the direction of the wave. This requires a medium to travel. For Example: Sound Waves.

2. Transverse wave: These waves are defined as the waves in which the particles of the medium travel perpendicularly to the direction of the wave. This does not require a medium to travel. These can travel in vacuum also. For Example: Light waves.

Hence, Sound waves and some earthquake waves are longitudinal waves. Ocean, light and other earthquake waves are transverse waves

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2 years ago
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Answer:

It’s D

Explanation:

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3 years ago
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