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2 years ago

Drag each tool to the correct category. Identify the common use of each tool used by space scientists and earth scientists

Physics

2 answers:

inysia [295]2 years ago

8 0

<h3>Answer</h3>

Tools that magnify objects Tools that don't magnify objects

magnifying glass rule

telescope binoculars

microscope

<h3>Explanation</h3>

radio dish: is use to receive radio waves from the air.

binoculars: provide a magnified stereoscopic view of distant objects.

streak plate: is a technique which is used to grow bacteria on a growth media surface so that individual bacterial colonies are isolated and sampled.

wind vane: is used to determine wind direction.

ruler: is used for measuring a line.

microscope: is used to magnify the objects which are not visible by naked eyes.

magnifying glass: is used to magnifying tiny objects which are difficult to see yet they are visible.

telescope: use by space scientist to examine astronomical event that may take place in the sky which is too far.

navik [9.2K]2 years ago

4 0

Answer:

Tools that magnify objects:

1. Magnifying Glass

2. Binocular

3. Telescope

4. Microscope

5. Radio Dish

Tools that do not magnify objects:

1. Wind vane

2. Streak Plate

3. Ruler

Explanation:

The tools or devices that can show an object closer and bigger are called magnifying instruments. These tools have lens/mirrors or some other mechanism to make the incident light beams converge at one point and focus. If you notice, Magnifying glass, Binoculars, Telescope, and microscope use convex lens/concave mirrors which converge the light beams at one point. Thus they will magnify. Radio dish also converges the incident radio waves on the receiver. These might not visible to naked eye but magnification do occur in them as well with the help of a concave dish structure.

Rest other tools do not magnify any object as they don't have any such parts in them which can make the light beams converge at one point.

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spayn [35]

Answer:

5.09 m/s

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Use the height to find the time it takes to land:

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0 = 8.0 m + (0 m/s) t + ½ (-9.8 m/s²) t²

t = 1.28 s

Now use the horizontal distance to find the initial velocity.

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2 years ago

2. A jack exerts a vertical force of 4.5 X 103

skad [1K]

Correct Question:-

A jack exerts a vertical force of 4.5 × 10³

newtons to raise a car 0.25 meter. How much

work is done by the jack?

$\\ \\$

Given :-

$\star \sf \small force = 4.5 \times {10}^{3} \: newton$

$\star \sf \small distance = 0.25 \: meter$

$\\ \\$

To find:-

$\sf \star \: work = \: ?$

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Solution:-

we know :-

$\bf \dag \boxed{ \rm work = force \times distance}$

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So:-

$\dashrightarrow \sf work = force \times distance$

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$\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times 0.5 \\$

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$\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times \frac{0 \cancel.5}{10} \\$

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$\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times \frac{5}{10} \\$

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$\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times \cancel \frac{5}{10} \\$

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$\dashrightarrow \sf work = \dfrac{4\cancel.5}{10} \times 1 {0}^{3} \times \dfrac{1}{2} \\$

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$\dashrightarrow \sf work = \dfrac{45}{10} \times 1 {0}^{3} \times \dfrac{1}{2} \\$

$\\ \\$

$\dashrightarrow \sf work = \dfrac{45}{10 {}^{0} } \times 1 {0}^{3 - 1} \times \dfrac{1}{2} \\$

$\\ \\$

$\dashrightarrow \sf work = \dfrac{45}{10 {}^{0} } \times 1 {0}^{2} \times \dfrac{1}{2} \\$

$\\ \\$

$\dashrightarrow \sf work = \dfrac{45}{1} \times 1 {0}^{2} \times \dfrac{1}{2} \\$

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$\dashrightarrow \sf work = \dfrac{45 \times 10 \times \cancel{10}}{ \cancel2} \\$

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$\dashrightarrow \sf work = \dfrac{45 \times 10 \times 5}{ 1} \\$

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$\dashrightarrow \sf work =225 \times 10$

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5 0

2 years ago

9.80 1. The density of mercury is 13600 kg/m³. What is this value in g/cm³? 2. Find the mass of water which will fit in a large

My name is Ann [436]

Answer:

1. 13..6 grams per centimeters cubed.

2. Mass = 400kg

3. Volume = 200cm = 2m

Explanation:

1. The conversion for kg/m^3 to g/cm^3 is divide by 1000.

2. $density=\frac{mass}{volume}$

$1000=\frac{mass}{2 * 1 * 0.2}$

$1000*0.4=mass$

$400kg = mass$

3. $density=\frac{mass}{volume}$

$0.6=\frac{120}{volume}$

$volume=\frac{120}{0.6}$

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1 year ago

Which three characteristics of an object are represented by a motion map

nadya68 [22]

There are three things that can be represented on a motion map

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3 years ago

How long does it take for 4 coulombs of charge to pass through a cross

Galina-37 [17]

Answer: 2 seconds

Explanation:

Given that,

Time (T) = ?

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Time = 4 coulombs / 2 Amps

Time = 2 seconds

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3 years ago