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Anastasy [175]
3 years ago
9

What is 1 thing that makes it difficult for you to be physically active at home​

Physics
1 answer:
oksian1 [2.3K]3 years ago
4 0
Electronics such as TV, phone, computer could get you distracted from what you were doing or want to do.
Also eating, instead of be active sitting down and indulging in food will distract you.
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Q.By the method of dimensional analysis, derive the
Jet001 [13]

Answer:

LHS=RHS=[L]

Explanation:

Given mathematical expression:

s=u.t+\frac{1}{2} a.t^2

where:                                             dimension:

s = displacement length                [L]

u = initial velocity                           [L.T^{-1}]

t = time                                                 [T]

a = acceleration                             [L.T^{-2}]

now using dimensional analysis:

[L]=[L.T^{-1}]\times [T]+[L.T^{-2}] [T]^2

we know that the ratio and constants have no dimension.

[L]=[L]+[L]

as we know that only similar dimensions can be added or subtracted therefore we get a correct conclusion.

<em>However we can deduce the operators between the equations and can neither check for the validity of the constants. We can only check for the dimension of the terms involved.</em>

8 0
4 years ago
A truck is moving at a constant speed of 50 m/s. A boy riding in the back of the truck throws a newspaper out the back of the tr
lbvjy [14]

Answer:

70m/s

Explanation:

7 0
4 years ago
23)
Vera_Pavlovna [14]

Answer:

b

Explanation:

3 0
3 years ago
Which process describes the warm ocean that transfers heat to the air above it?
VLD [36.1K]

Answer:

convection is the answer

7 0
3 years ago
You lift a 10-N physics book up in the air a distance of 1.0 m, at a constant velocity
Anarel [89]

The book is lifted upward, but gravity points down, so the work done by gravity must be negative (so you can eliminate options 1 and 3).

The force exerted on the book by gravity has magnitude

<em>F</em> = <em>mg</em> = (10 N) (9.80 m/s^2) = 9.8 N ≈ 10 N

You raise the book 1.0 m in the opposite direction, so the work done is

<em>W</em> = (10 N) (-1.0 m) = -10 J

5 0
3 years ago
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