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kipiarov [429]
3 years ago
14

What is the minimum time that a warm up should last

Physics
2 answers:
Vladimir [108]3 years ago
7 0
5 minutes is the minimum time
djyliett [7]3 years ago
7 0
At minimum, a warm up stretch or exercise should last about 5 minutes. this way your muscles are well prepared 
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A 5 kg fish swimming at 1 m/s swallows an absentminded 500 g fish swimming toward it at a velocity that brings both fish to a ha
AlexFokin [52]

To solve this problem we will apply the concepts related to the conservation of momentum. Momentum is defined as the product between mass and velocity of each body. And its conservation as the equality between the initial and final momentum. Mathematically described as

m_1u_1+m_2u_2 = (m_1+m_2)v_f

Here

m_1 = Mass of big fish

m_2 = Mass of small fish

v_1 = Velocity of big fish

v_2 = Velocity of small fish

v_F = Final Velocity

The big fish eats small fish and the final velocity is zero. Rearrange the equation for the initial velocity of small fish we have

m_1u_1=-m_2u_2

u_2 = -\frac{m_1u_1}{m_2}

Replacing we have,

u_2 = -\frac{(5kg)(1m/s)}{0.5kg}

u_2 = -10m/s

The negative sign indicates that the small fish is swimming in the direction opposite to that of the big fish.

Therefore the speed of the small fish is 10m/s

8 0
3 years ago
Which plate is covering most of two continents ? what two continents?
ololo11 [35]
The plate that is covering most of the two continents is the Eurasian plate.
The continents are <span><span>
1. </span><span> Europe</span></span> <span><span>
2. </span><span> Asia</span></span>
The Eurasian plate is a tectonic plate that amasses the whole continent of what others call as “Eruasia”. It takes part of the oceanic crust that starts from the Mid-Atlantic Ridge and extends itself to northward of the Gakkel Ridge. The size of this plate is for about 67,800,000 km according to statistics and geography.  



3 0
3 years ago
Read 2 more answers
Please help asap I need this rn
den301095 [7]
It’s the third one .
6 0
3 years ago
What is meant by heat energys​
ad-work [718]

Answer:

heat energy is the form of energy produced by heat

when we burn heat a type of enery is came

4 0
2 years ago
A mass that weighs 10 lb stretches a spring 2.4 in. It rests in a liquid which imparts a dampening force of 4 pounds when the ve
forsale [732]

Answer:

The solution is attached in the pictures below

Explanation:

5 0
3 years ago
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