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viva [34]
3 years ago
8

20 PTS

Mathematics
1 answer:
Sophie [7]3 years ago
6 0

Answer:

=9.8 . -- : .

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A bean salad has 20 beans in all. It is made up of:
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2 black-eyed beans
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2 years ago
You have never seen your favorite superhero in real life. Out of curiosity you calculate her height to be 1.57 mm . If the super
hjlf

Answer:

You are at the top of the Empire State Building on the 102nd floor, which is located 373 m above the ground when your favorite superhero flies over the building parallel to the ground at 70.0% the speed of light.

You have never seen your favorite superhero in real life. Out of curiosity you calculate her height to be 1.57 mm . If the superhero landed next to you, how tall would she be when standing?

Step-by-step explanation:

so this problem is from Einstein's special theory of relativity about length contraction.

the formula is given by:

L'=L\sqrt{1-\beta^2 }

where \beta =v/c

c is speed of light c=3*10^8 m/s and v is velocity of object.

L is called proper length. L' is length that the observer measure in moving frame.

here velocity of object is 70% speed of light. i.e   v=209 854 721 m / s

so L=1.57 m

putting all values

L'= 1.57m \sqrt{1-(\frac{209854721}{3*10^8})^2 } \\\\L'=1.12m

4 0
3 years ago
The perimeter of a rectangular field is 52 yards. The length is 4 more yards than the width. Find the length and width of the fi
hichkok12 [17]

:) Brainliest pls?

Answer:

D.

Width = 11 yards

Length = 15 yards

Step-by-step explanation:

P = 2(l + w)

Consider the width to be x.

The length would then be x+4.

We know that P = 52 yd

52 = 2(x + x + 4)

52 = 2(2x + 4)

52 = 4x + 8 (Subtract 8 from both sides)

44 = 4x (Divide both sides by 4)

x = 11

The width is x, so the width is 11 yards.

The length is x+4, so the length is 15 yards.

8 0
3 years ago
PLease help me this is due at midnight!
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What do you need help with? Please give me a photo or something so that I can help you with it. All I see is “Please help me, this is due at midnight!!” Next time please give US a picture or something so I can be able to help you, Thank you, Sincerely Unknown.
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3 years ago
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True or False: A check is a document that directs the bank to deduct money from your account and make a payment
Tema [17]

Answer:true

Step-by-step explanation: An order to a bank to pay a stated sum from the drawer's account, written on a specially printed form.

7 0
3 years ago
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