2 years ago

The forces acting on a child in a seat are described by a free body diagram what is the net force

Physics

1 answer:

alekssr [168]2 years ago

5 0

maybe gravity because when you sit gravity holds you down

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You and your bicycle have combined mass 80.0 kg. When you reach the base of a bridge, you are travelling along the road at 7.50

Sonja [21]

We have that K.E and work done is

$K.E=-1890J$
$W=2186J$

From the Question we are told that

mass= 80.0 kg

Velocity= 7.50 m/s.

vertical distance of 5.20 m

Slowed to 3.00 m/s.

Generally the equation for Kinetic energy is mathematically given as

$K.E=\frac{mv^2}{2}-\frac{mv^2}{2}\\\\K.E=\frac{80*3^2}{2}-\frac{80*7.5^2}{2}$

$K.E=-1890J$

$P.E=mgh\\\\P.E=80*9.8*5.2\\\\P.E=4076$

Therefore

$W=4076-1890J$

$W=2186J$

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3 years ago

You are caring for a person who was involved in an automobile collision. The woman is complaining of pain in her abdomen, nausea

Anna71 [15]

Answer:

I would suspect internal bleeding.

Explanation:

Internal Bleeding. As she has pain in abdomen and nausea means she is loosing blood. As result of low blood in body vessels, she is feeling great thirst as well as sugar level is going down.

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3 years ago

Isotopes are two atoms that have the same _________ but different ________

eduard

Atomic number, atomic mass

8 0

3 years ago

What becomes of the loss in mass of nuclei when heavy atoms split?

NeTakaya

Answer:

when heavy atoms split the loss of mass is converted into kinetic energy

Explanation:

6 0

2 years ago

Why does a cake bake in a microwave oven, but the baking dish does not get hot?

Verizon [17]

1.THATS kinda more observed question..
well I think microwave the material is baked by passing microwave radiations. which then makes the cake fluffy. which is not like normal heating apparatus, I believe the baking dish do have certain rise in temperature,but not more as the waves are conducted it is not like normal heating which will be then conducted..
2. also it depends on the material too I mean plastic will melt but glass won't.. one has to experimentally observe and perform in order to have a full understanding of this question

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2 years ago