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VLD [36.1K]
3 years ago
9

When converting from a smaller to a larger unit of measurement, you move the _______ to the right. A. second number B. ratio C.

exponent D. decimal point
Physics
2 answers:
viktelen [127]3 years ago
7 0
The answer to your question is D
Ghella [55]3 years ago
5 0

Answer:

The correct answer is D. decimal point.

Explanation:

The question is wrong. It should be :

When converting from a smaller to a larger unit of measurement, you move the _______ to the left.

In order to convert from a smaller to a larger unit of measurement what we need to move is the decimal point to the left. Let's see an example :

We have the two following units

''g'' which is grams and ''kg'' which is kilograms.  

We know that the grams are a smaller unit of measurement that kilograms.

We also know the relationship :

1kg=1000g

For example if we want to convert 1500g to kilograms :

(1500g).(\frac{1kg}{1000g})=1.5kg

What we have done is that we divided the number ''1500'' by ''1000''.

This is equal to move the decimal point three places to the left ⇒

1500g=1.5kg

The correct answer is D. decimal point

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A hovering mosquito is hit by a raindrop that is 50 times as massive and falling at 8.4 m/s, a typical raindrop speed. How fast
kenny6666 [7]

The final velocity after the collision is 8.2 m/s

Explanation:

We can solve this problem by using the law of conservation of momentum: in fact, if we consider the system to be isolated (=no external unbalanced forces), the total momentum of the raindrop+mosquito must be conserved before and after the collision.

If the collision is perfectly inelastic, moreover, the raindrop and the mosquito stick together and travel at the same velocity v after the collision.

Mathematically:

p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v  

where:  

m_1 is the mass of the first mosquito

u_1 = 0 is the initial velocity of the mosquito

m_2 = 50 m_1 is the mass of the raindrop

u_2 = 8.4 m/s is the initial velocity of the raindrop

v is the final combined velocity of the raindrop+mosquito

Re-arranging the equation and substituting, we find:  

m_1 u_1 + 50 m_1 u_2 = (m_1 + 50 m_1) v\\50 m_1 u_2 = 51 m_1 v\\50 u_2 = 51 v\\v=\frac{50}{51}u_2 = \frac{50}{51}(8.4)=8.2 m/s

Learn more about momentum here:

brainly.com/question/7973509  

brainly.com/question/6573742  

brainly.com/question/2370982  

brainly.com/question/9484203  

#LearnwithBrainly

4 0
3 years ago
10 PTS. If an electromagnetic wave has a frequency of 8 ⋅ 10^14 H z , what is its wavelength? Use λ=V/F. The speed of light is 3
ad-work [718]
Answer :

The wavelength would be 410 m/s
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3 years ago
An embolus can cause which of the following?
QveST [7]
I think it’s C. Stroke if not then D
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Interdependence between plants and animals<br>​
Rama09 [41]

Answer:

plants depend on animals for CO2 (to use during photosynthesis) while animals depend on plants for food (consumation)

Explanation:

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3 years ago
Find the moment of inertia Ihoop of a hoop of radius r and mass m with respect to an axis perpendicular to the hoop and passing
Juliette [100K]

Answer: MR²

is the the moment of inertia  of a hoop of radius R and mass M with respect to an axis perpendicular to the hoop and passing through its center

Explanation:

Since in the hoop , all mass elements  are situated at the same distance from the centre , the following expression for the moment of inertia can be written as follows.

I = ∫ r² dm

= R²∫ dm

MR²

where M is total mass and R is radius of the hoop .

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3 years ago
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