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inna [77]
3 years ago
13

After a caterpillar eats a leaf, it can convert the chemical energy into _____ energy to help it build a cocoon.

Physics
2 answers:
umka21 [38]3 years ago
7 0
<span>After the caterpillar eats a leaf, it can convert the chemical energy into mechanical energy to help build a cocoon. The leaf as their source of food contains mostly of starch and cellulose. This must be break down into smaller compounds by enzymes. The smaller compounds will enter into the different parts of the caterpillars’ body for nutrition. The nutrients that are received by its body will be used for other body processes such as movement in building a cocoon.</span>
Oxana [17]3 years ago
4 0

Answer:

Mechanical

Explanation:

It uses mechanical energy to build a cocoon.

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Estimate the number of times the earth will rotate on its axis during a human’s lifetime
Fudgin [204]

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A person is riding a bicycle, and its wheels have an angular velocity of 10.7 rad/s. Then, the brakes are applied and the bike i
Scilla [17]

Answer:

(a) t = 22.9 s

(b) α= - 0.467 rad/s²

Explanation:

The uniformly accelerated circular movement, is a circular path movement in which the angular acceleration is constant.

We apply the equations of circular motion uniformly accelerated :

ωf ²=  ω₀² + 2*α*θ  Formula (1)

ωf= ω₀ + α*t Formula (2)

Where:

θ : angle that the body has rotated in a given time interval (rad)

α : angular acceleration (rad/s²)

t : time interval (s)

ω₀ : initial angular speed ( rad/s)

ωf : final angular speed ( rad/s)

Data

θ =  19.5 revolutions  : angular displacement of each wheel or angle that the  wheel has rotated in a given time interval

ω₀= 10.7 rad/s :  initial angular speed of the Wheel ( rad/s)

ωf = 0 : final angular speed  of the Whee( rad/s)

Calculating of the angular acceleration (α )

We replace data in the fómula (1),considering that 1 revolution is equal to 2π radians :

ωf ²=  ω₀² + 2*α*θ

(0 )²=  (10.7)² + 2*α*(19.5*2*π )

0= 114.49 + (245.04)*α

-114.49 =  (245.04)*α

α= (-114.49) /(245.04)

α= -114.49 /(245.04)

α= -0.467 rad/s²

Time does it take for the bike to come to rest

We replace data in the formula (2)

ωf = ω₀ + α*t

0 =  10.7 + -0.467*t

-10.7  = - 0.467*t    we multiply by (-1) both sides of the equation :

10.7  = 0.467*t  

t = 10.7 / 0.467

t = 22.9 s

3 0
3 years ago
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