3 years ago

What do scientist need to look at before developing

Physics

1 answer:

pav-90 [236]3 years ago

6 0

Data, without data they can’t develop anything.

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External respiration takes place in the .....?

lions [1.4K]

External respiration takes place in the Bronchi to the capillaries. AND the internal respiration takes place from the capillaries to the cell tissues.

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2 years ago

A 2.6 kg mass attached to a light string rotates on a horizontal,

Ainat [17]

The maximum speed the mass can have before it breaks is 2.27 m/s.

The given parameters:

maximum mass the string can support before breaking, m = 17.9 kg
radius of the circle, r = 0.525 m

The maximum speed the mass can have before it breaks is calculated as follows;

$T = ma_c\\\\Mg = \frac{Mv^2}{r} \\\\v^2 = rg\\\\v = \sqrt{rg} \\\\v_{max} = \sqrt{0.525 \times 9.8} \\\\v_{max} = 2.27 \ m/s$

Thus, the maximum speed the mass can have before it breaks is 2.27 m/s.

Learn more about maximum speed of horizontal circle here:brainly.com/question/21971127

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2 years ago

A 3 kg object is attached to a 1000 N/m spring. The spring is compressed 0.10 m and then the spring launches the object horizont

Viktor [21]

Answer:

1.826m/s

Explanation:

E=1/2*k*(∆L)^2

E=1/2*mV^2

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2 years ago

2. What is the power rating of an engine capable of lifting a 100 kg object 5 m vertically

Leya [2.2K]

Work=f.d
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Power = work/time = 500/4
=125 watt

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3 years ago

Please help with part b. I need to find the speed.

Elena-2011 [213]

It would be 2 to 4 seconds (:

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3 years ago