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3 years ago

10

" A body A moves with a speed 0.2l along straight path in a

1 answer:

choli [55]3 years ago

8 0

Answer:

incomplete

Explanation:

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Mama L [17]

C landslide I believe

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3 years ago

A mechanic needs to replace the motor for a merry-go-round. The merry-go-round should accelerate from rest to 1.5 rad/s in 7.0 s

marta [7]

Answer

given,

initial speed of merry-go-round = 0 rad/s

final speed of merry-go-round = 1.5 rad/s

time = 7 s

Radius of the disk = 6 m

Mass of the merry-go-round = 25000 Kg

Moment of inertia of the disk

$I = \dfrac{1}{2}MR^2$

$I = \dfrac{1}{2}\times 25000\times 6^2$

I = 450000 kg.m²

angular acceleration

$\alpha = \dfrac{\omega_f-\omega_0}{t}$

$\alpha = \dfrac{1.5-0}{7}$

$\alpha =0.214\ rad/s^2$

we know,

$\tau= I \alpha$

$\tau= 450000\times 0.214$

$\tau=96300\ N.m$

8 0

4 years ago

Scientists can help us understand the impact of human activities on the environment. True or false?

zhannawk [14.2K]

Answer:

True

Explanation:

hope it will help you

5 0

2 years ago

Which of the following would be the SI unit to use in measuring the temperature of hot liquid

GREYUIT [131]

Answer:

Kelvin

Explanation:

The SI unit to use in measuring the temperature of hot liquid is kelvin (K)

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3 years ago

What kind of force can be created with an electrical current?

RideAnS [48]

Answer:

magnatic force can be created

4 0

3 years ago