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In-s [12.5K]
4 years ago
5

A student places his hand in front of a plane mirror as shown in

Physics
1 answer:
NARA [144]4 years ago
7 0

Answer:

A:

Explanation:

Plane mirrors always form virtual images meaning although the object appears to be in the other side of the mirror the light rays actually originate in front of it. The image is inverted meaning that when you lift your right hand it shows your left hand rising. and with true orientation.

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Sound waves are a- Transverse b- Longitudinal c- Transverse and longitudinal
Katen [24]

Answer:

Sound waves are longitudinal in nature.

Explanation:

There are many types of waves like transverse, longitudinal, electromagnetic wave etc.

Sound waves are longitudinal in nature. In longitudinal type of wave, the medium particles moves parallel to the propagation of the wave. This type of waves move in the form of compression and rarefaction.

In compression, the particle density at a point is very less while in rarefaction, the particle density at a point is very high.

So, the correct option is (b) "longitudinal wave".

3 0
3 years ago
Read 2 more answers
What is Mass definition for physics
jolli1 [7]

Answer:

Scientific Definition of Mass Mass is the quantity of inertia (resistance to acceleration) possessed by an object or the proportion between force and acceleration referred to in Newton's Second Law of Motion (force equals mass times acceleration).

Explanation:

Again, Same Thing!

And Another Wendys Roast

4 0
3 years ago
Please help ASAP I have to turn this in soon
Allisa [31]

Answer:

See in explanation

Explanation:

Scientific use: The Einstein's THEORY of relativity states that "Time Is Absolute".

Everyday use: Einstein's LAW of relativity says that time is not the same at all places and events.

5 0
3 years ago
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The owner of a hobby store bought a case of 9-volt batteries for $61.00. He marked the price up such that his profit was $3.75 p
Otrada [13]

Answer:

19

Explanation:

4 0
3 years ago
An object with mass 80 kg moved in outer space. When it was at location <7, -34, -7> its speed was 14.0 m/s. A single cons
Sergio [31]

Answer:

W = -2080 J

Explanation:

initial position vector of the object is given as

r_i = 7\hat i - 34\hat j - 7 \hat k

similarly final position vector is given as

r_f = 12\hat i - 42\hat j - 11\hat k

now the displacement of the object is given as

\vec d = \vec r_f - \vec r_i

now we will have

\vec d = (12\hat i - 42\hat j - 11\hat k) - (7\hat i - 34\hat j - 7 \hat k)

\vec d = 5\hat i - 8\hat j- 4\hat k

now the force on the object is given as

\vec F = (200\hat i + 460 \hat j - 150 \hat k)

so here in order to find the work done

W = \vec F . \vec d

W = (200\hat i + 460 \hat j - 150 \hat k). (5\hat i - 8\hat j- 4\hat k)

W = 1000 - 3680 + 600 = -2080 J

7 0
3 years ago
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