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Romashka [77]
3 years ago
12

Which measurement is a speed, not a velocity?

Physics
1 answer:
cestrela7 [59]3 years ago
6 0

Answer:

C is the correct answer, 35m/s

Explanation:

This is so because speed doesn't have direction, it is a scalar. Vectors such as velocity do.

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Which scientific development has given rise to the most debate about the ethics of tampering with nature?
Burka [1]

<span>Good Morning!
 
The scientific advance that launched an ethical alert in the scientific community was the possibility of cloning animals, since it presents important questions, especially if such a project is extended to humans.
 
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3 years ago
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Please help asdfghjkll
lara [203]

Answer:

1. B

2. B

Explanation:

1. he was the only teacher at that time that figured out that everything doesn't revolve around us. he figured it out by a telscope he made from three lens and a tube. its actually pretty cool. He found out that venus first was in front of us.

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7 0
3 years ago
In which states of matter will a substance have a fixed volume?
NISA [10]

Answer:

A. liquid and solid

Explanation:

7 0
3 years ago
An object with a lot of mass has ____________.
aleksley [76]
C. a lot of inertia.............................. :-)
3 0
3 years ago
A compound microscope has an objective lens of focal length 1.40 cm and an eyepiece with a focal length of 2.20 cm. The objectiv
olchik [2.2K]

Answer:

magnification is - 159

objective distance is 3.85 cm

Explanation:

Given data

focal length f1 = 1.40 cm

focal length f2 = 2.20 cm

separated d = 19.6 cm

to find out

angular magnification and How far from the objective

solution

we know magnification formula that is

magnification = ( - L / f1 ) (D/f2)

here D = 25 cm put all value

magnification = ( - 19.6 / 1.40 ) (25/2.20)

magnification = - 159

and

now we apply lens formula

i/f = 1/q + 1/p

p = f2 = 2.20

so

q = f2 p / p -f2

q = 1.4(2.20) / ( 2.2 - 1.4 )

q = 3.85 cm

so objective distance is 3.85 cm

3 0
3 years ago
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