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evablogger [386]
3 years ago
11

2) A 0.4 kg ball moves in horizontal circle of radius 3 mat speed of 100m/s. What

Mathematics
1 answer:
ladessa [460]3 years ago
3 0

9514 1404 393

Answer:

  1333.3 N

Step-by-step explanation:

The centripetal acceleration is given by ...

  a = v^2/r

  a = (100m/s)^2/(3 m) = (10^4)/3 m/s^2

Then the force on the ball is ...

  F = Ma = (0.4 kg)(10^4)/3 kg·m/s^2 ≈ 1333.3 N

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Answer: 50 cars

Step-by-step explanation:

40% x 100= 0.4

.4 x 36= 14.4

36 + 14 (cause u can’t sell .4 of a car so u round down)

= 50 cars

5 0
3 years ago
Given the conversion factors 12 in/1 ft and 3.28 ft/1 m, which line segment is longer?
chubhunter [2.5K]

Answer:

Line segment A

Step-by-step explanation:

The apostrophe symbol represents feet.

1 meter can be converted into 3.28'

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1 year ago
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Give your own example of an irrational number and explain why the number you chose is irrational
marishachu [46]
Definition
An irrational number is a number that cannot be expressed in as a fraction. It has decimal expression that does not terminate.

An example will be √2.

Reason:
(1) √2 cannot be expressed as a fraction form
(2) √2 has decimals that does not terminate

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3 years ago
Magan has a bag that contains pineapple chews, cherry chews, and lime chews. He performs an experiment. Magan randomly removes a
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Answer:

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Step-by-step explanation:

6 0
2 years ago
Find the surface area of the composite figure​
Gnoma [55]

Answer:

=280 in^2

Step-by-step explanation:

----------------------------------------

Let's find the surface area of the pink rectangular prism first.

2*10=20+20=40

4*10=40+40=80

4*2=8+8=16

40+80+16=136

The surface area for the pink rectangular prism is 136 in^2.

-------------------->>>>>

Now, let's find the surface area of the green rectangular prism.

4*7=28+28=56

4*7=28+28=56

4*4=16+16=32

56+56+32=144

The surface area for the green rectangular prism is 144 in^2.

-------------------->>>>>

Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.

136+144=

=280 in^2

----------------------------------------

Hope this is helpful.

6 0
3 years ago
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