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masha68 [24]
3 years ago
8

A motorbike is travelling with a velocity of 3m/s. It accelerates at a rate of 9.3m/s for 1.8s. Calculate the distance it travel

s in this time​
Physics
1 answer:
Misha Larkins [42]3 years ago
4 0

Explanation:

Consider the kinematic equation,

x  = vt +  \frac{1}{2} a {t}^{2}

where x is the distance traveled, v is the initial velocity, a is the acceleration and t is time. By plugging in known values and solving for x,

x = 3(1.8) +  \frac{1}{2} (9.3) {1.8}^{2}

through simple algebra we get

x = 20.466

where this is the distance traveled in meters.

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Explain how a common housecat gets “worms.”eplain(science)
OLga [1]

Answer:

Cats most commonly contract worms after coming into contact with parasite eggs or infected feces. A cat may walk through an area with eggs or infected feces, and since cats are often such fastidious groomers, they will then ingest the eggs or fecal particles as they clean their fur and feet.

Explanation:

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5 0
2 years ago
An old movie poster used a quote "in space no one can hear you scream!"which of these best explains this quote
soldi70 [24.7K]

I think the complete question is:

An old movie poster used a quote "In space, no one can hear you scream!" Which of these best explains the quote?

A) The quote is incorrect, you can hear sound in outer space.

B) Sound cannot be polarized. So, you cannot hear sound in space.

C) Sound is an electromagnetic wave and needs no medium to travel through.

D) Sound needs a medium for the wave to vibrate and there is nothing in space to vibrate.

Answer:

D) Sound needs a medium for the wave to vibrate and there is nothing in space to vibrate.

Explanation:

There are two types of waves:

  1. Mechanical Waves : These waves requires are medium to travel from one point of space to another point of space. Sound wave is one such example. Since they depend upon medium so speed of travelling also depend upon medium.
  2. Electromagnetic Waves :  These type of waves do not require a medium to travel. If medium exists then it will cause some hindrance in there path but still they will travel. For example: Light waves, X-Rays, Microwaves, Infrared waves, Ultraviolet waves etc.

In space no particle exists so no mechanical waves, such as sound, can travel through it but any electromagnetic wave can travel, such as light. That is why when astronauts are in space walk or when they are in outer space then they do not talk rather they use sign language to communicate

4 0
3 years ago
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What is the density of a salt solution if 50.0 ml has a mass of 57.0 g?
steposvetlana [31]
Density = mass / volume, so 5.70 g divided by 50.0 ml should make the density <span>1.036 g/ml</span>
8 0
3 years ago
Match each scientist with the contribution he made to the arrangement of elements in the periodic table
Sergeeva-Olga [200]
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atomic mass

  • Johann Wolfgang Dobereiner-created groups of three elements,

each based on similar properties

  • John Newlands-used patterns to predict undiscovered

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  • Antoine Lavoisier-divided elements into four categories

Explanation:

The periodic table or the table depicting the arrangement of various elements has a long history. Several of the scientist starting from Lavoisier to Mendeleev contributed to the table in their might. The present table has been an evolution of the previous tables over their shortcomings.

Some of the notable contributions include-

  • Mendeleev- Mendeleev arranged the elements in order of atomic mass rather than atomic mass. Through this, he also discovered new elements.
  • Newlands- He formulated the Newland law of octaves similar to musical notation.
  • Lavoisier- Lavoisier divided the elements into various categories and also defined elements.
  • Dobereiner- He formulated the triad law which encapsulated that certain group of elements showed similar properties, hence can be grouped together.

6 0
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Ne4ueva [31]
I think the answer is wavelength
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