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seraphim [82]
3 years ago
10

How should parents communicate with children?

Physics
1 answer:
Harman [31]3 years ago
8 0
D. Get down to the child’s level to talk
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The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it 0.90 s to reach the floor. Wha
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Answer:

The mass of the another block is 60 kg.

Explanation:

Given that,

Mass of block M= 100 kg

Height = 1.0 m

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We need to calculate the acceleration of each block

Using equation of motion

s=ut+\dfrac{1}{2}at^2

Put the value into the formula

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a=\dfrac{2\times1.0}{(0.90)^2}

a=2.46\ m/s^2

We need to calculate the mass of the other block

Using newton's second law

The net force of the block M

Ma=Mg-T

T=Mg-Ma....(I)

The net force of the block m

ma=T-mg

Put the value of T from equation (I)

ma=Mg-Ma-mg

m(a+g)=M(g-a)

m=\dfrac{M(g-a)}{(a+g)}

Put the value into the formula

m=\dfrac{100(9.8-2.46)}{2.46+9.8}

m=59.8\ \approx60\ kg

Hence, The mass of the another block is 60 kg.

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2 years ago
The following molecule can be synthesized from an epoxide and alkyllithium reagent, followed by aqueous workup. However, there a
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2. 3000. kg car is moving across level ground at 5.0 m/s when it begins an
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yes

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The energy of a photon of light is ________ proportional to its frequency and ________ proportional to its wavelength.
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What is quantum entanglement is a simple explanation?
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