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Gre4nikov [31]
3 years ago
11

what is the mass of an object that is experiencing a net force of 200N and an acceleration of 500m/s2​

Physics
1 answer:
Bas_tet [7]3 years ago
4 0

Answer:

F=200N

a=500m/s2​

Mass=?

Explanation:

F=ma

200=m*500

200/500=m

Mass=0.4kg

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Answer:

a. Walking burns up more energy.

b. 1740 kJ

c. This is because more intense exercise releases a lot of energy in a short period of time, whereas, less intense energy releases it energy gradually over a long period of time.

Explanation:

a. We know energy W = Pt where P = power and t = time.

Now for walking, t = d/v where d = distance = 5.00 km and v = speed = 3.00 km/hr and P = 290 W

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Now for running, t = d/v where d = distance = 5.00 km and v = speed = 10.00 km/hr

So, t = d/v = 5.00 km/10.00 km/hr = 0.5 hr = 0.5 × 3600 s = 1800 s and P = 700 W

W = Pt = 700 W × 1800 s = 1260000 = 1260 kJ

Since walking burns up 1740 kJ and running burns up 1260 kJ, walking burns up more energy.

b. It burns up 1740 kJ

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4 0
3 years ago
How does air resistance affect an object’s speed?
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What value do we use to describe acceleration due to gravity
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In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.

Got it from the internet, hope it helps though ^^

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Pattinson Food Suppliers has received a letter from a government agency regarding some complaints of wrong labeling of meat prod
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Answer:

1. The United States Department of Agriculture’s Food Safety and Inspection Service (FSIS)

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What is the formula for the moment of inertia of the person/single particle rotating in a circle? (Give these values with a subs
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Moment of Inertia refers to:

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The moment of inertia of single particle rotating in a circle I1 = 1/2 (m*r^2)

here We note that the,

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The value of the moment of inertia when the person is on the edge of the merry-go-round is determined with parallel-axis theorem:

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learn more about moment of Inertia here:

<u>brainly.com/question/14226368</u>

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