120 acceleration oh yeah i am sure about this
Velocity of submarine A is vs = 11.0m/s
frequency emitted by submarine A. F = 55.273 × 10∧3HZ
Velocity of submarine B = vO = 3.00m/s
The given equation is
f' = ((V + vO) ((v - vS)) × f
The observer on submarine detects the frequency f'.
The sign of vO should be positive as the observer of submarine B is moving away from the source of submarine A.
The speed of the sound used in seawater is 1533m/s
The frequency which is detected by submarine B is
fo = fs (V -vO/ v +vs)
= 53.273 × 10∧3hz) ((1533 m/s - 4.5 m/s)/ (1533 m/s +11 m/s)
fo = 5408 HZ
Answer:
The answer is D or Fertilizer, sorry for the late answer
Explanation:
Answer:
9.1848 km straight east and 10.5659 km straight north
Explanation:
To find these distances, you just have to find the components of this displacement. The inclination in relation to north is 41 degrees, so to find the north component, you need to multiply 14 km by the cossine of 41 degrees, which is 0.7547.
So, the north component is 14 * 0.7547 = 10.5659 km
To find the east component, you multiply 14 by the sine of 41 degrees, which is 0.6561:
14 * 0.6561 = 9.1848 km
You would need to drive 9.1848 km straight east and then 10.5659 km straight north to arrive at the same point.
Concave mirror is a type of mirror that is <u>used by dentists to clearly see images of our teeth because they form an erect and enlarged image of the teeth.
</u>
<h2>Further Explanation
</h2><h3>Concave mirrors
</h3>
- Concave mirrors are types of mirrors that curve inward at the optical center.
- They reflect light inward towards one focal point. They are used for various purposes depending on the type of image required and the position of the object from the mirror.
<h3>Uses of Concave mirrors
</h3><h3>Shaving and makeup mirrors </h3>
- When used for shaving and makeups the objects are placed close to concave mirror to form an upright magnified image.
- Concave mirror are held close to the face so as to form an enlarged and upright image of the face. Additionally, during shaving hair can be seen clearly to make sure all hairs has been cut to the same length.
<h3>Headlights
</h3>
- Concave mirrors may be used in motor vehicles headlights. These mirror focuses the light from the bulb instead of reflecting it, to create a strong beam which shines on the road.
<h3>Microscopes
</h3>
- Concave mirrors may be used in microscopes to collect light from its source and shine it towards the slide that contains the specimen to enhance viewing through magnifying lens.
<h3>Dentists
</h3>
- Concave mirrors are used by dentists so as to enlarge the image of the teeth. The mirror is placed closer to the tooth, resulting to the formation of an upright and enlarged image of the tooth.
Keywords: Concave mirrors, upright and enlarged image
<h3>Learn more about:
</h3>
Level: High school
Subject: Physics
Topic: Curved mirrors
Sub-topic: Concave mirrors
