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Nitella [24]
1 year ago
7

Is running with a box work?

Physics
1 answer:
Harman [31]1 year ago
4 0
A major component of a good running stride is generating power from the hips to propel you forward – getting air and then landing again with a quick rebound to do it again and again. Box running is an ideal training aid for any runner, helping to build proper form, core strength and conditioning.
Hope this helps.
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A merry-go-round is rotating at an angular speed of 0.2 radians/s. Its motor falls off and it rotates freely. A technician jumps
I am Lyosha [343]

Answer:

  I₁ =1250  kg.m²

Explanation:

Given that

Angular speed of Merry ,ω₁= 0.2 rad/s

Angular speed of technician ,ω₂= 0.04 rad/s

Moment of the inertia of the technician ,I₂= 5000 kg.m²

Lets assume that

Moment of the inertia of merry with respected to the ground=I₁

There is no any external torque ,that is why angular momentum of the system will be conserve.

Now by conserving angular momentum

I₁ ω₁=(I₁+I₂)ω₂

I₁  x 0.2  = (I₁ +5000 ) x 0.04

I₁ (0.2-0.04) = 5000 x 0.04

I_1=\dfrac{5000\times 0.04}{0.2-0.04}

I₁ =1250  kg.m²

5 0
3 years ago
What does a branching tree diagram show? The evolution in the size of organisms The order in which specific traits may have evol
Anarel [89]

Answer:

a) Species change over time; some traits become more common, others less. This process of change is driven by natural selection. The traits that become more common are the ones that are “adaptive” or “increase fitness” (that is, a creature's chances of living longer and producing more offspring)

Explanation:

because it is

8 0
4 years ago
What is formula of perimeter of half circle​
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1/2 × 2 × pie × radius

= pie × radius

6 0
3 years ago
Two long parallel wires are separated by 6.0 mm. The current in one of the wires is twice the other current. If the magnitude of
lions [1.4K]

Answer:

Explanation:

Magnitude of force per unit length of wire on each of wires

= μ₀ x 2 i₁ x i₂ / 4π r    where i₁ and i₂ are current in the two wires , r is distance between the two and  μ₀ is permeability .

Putting the values ,

force per unit length = 10⁻⁷ x 2 x i x 2i / ( 6 x 10⁻³ )

= .67 i² x 10⁻⁴

force on 3 m length

= 3 x .67 x 10⁻⁴ i²

Given ,

8 x 10⁻⁶ = 3 x .67 x 10⁻⁴ i²

i²  = 3.98 x 10⁻²

i = 1.995 x 10⁻¹

= .1995

=  0.2 A approx .

2 i = .4 A Ans .

6 0
4 years ago
An athlete is working out in the weight room. He steadily holds 50 kilograms above his head for 10 seconds. Which statement is t
ludmilkaskok [199]
Answer: the true statement form the given statements is “the athletes is not doing any work because he does not move weight”

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