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ludmilkaskok [199]
3 years ago
9

Which of the following have exactly 5 significant figures?

Physics
1 answer:
LiRa [457]3 years ago
6 0

Answer:

D 32.110

Explanation:

every number is being used to express it

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A race car has a maximum speed of 0.104 km/s .What is this speed in miles per hour ?
sweet [91]

Answer:

232.641374 mph

Explanation:

A race car has a maximum speed of 0.104km/s

Let X represent the speed in miles per hour

Therefore the speed in miles per hour can be calculated as follows

1 km/s = 2,236.936292 mph

0.104km/s = X

X = 0.104 × 2,236.936292

X = 232.641374

Hence the speed in miles per hour is 232.641374 mph

8 0
3 years ago
Which of the following are density labels? <br> a. Kg/L <br> b. g/m <br> c. g/mL <br> d. cm/g
bearhunter [10]
Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. It is a property that can be used to describe a substance.<span> </span><span>It has standard units of kg/m^3 or g/mL. So, the best answer is option C.</span>

4 0
3 years ago
Read 2 more answers
Chemical energy is converted to electrial energy in a
VMariaS [17]

Answer:

Battery

Explanation:

6 0
3 years ago
Which kind of force do you exert on an object when you put it towrd you?
shutvik [7]
Applied force, I believe!
3 0
3 years ago
(I) A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the la
xxMikexx [17]

Answer:

425 m

Explanation:

From the question,

v = 2x/t.................... Equation 1

Where v = speed of sound in air, x = Length of the lake, t = time.

make x the subject of the equation

x = vt/2............... Equation 2

Given: t = 2.5 s

Constant: v = 340 m/s.

Substitute these values into equation 2

x = 340(2.5)/2

x = 425 m.

Hence the length of the lake is 425 m

4 0
3 years ago
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