3 years ago

PLEASE HELP , THOSE ARE ALL THE ANSWERS!

Physics

2 answers:

insens350 [35]3 years ago

7 0

Answer:

I don't understand

Explanation:

zzz [600]3 years ago

4 0

Erin runs at a constant speed for some time.

Nikhat’s speed is constantly increasing over time.

Nikhat finishes the race before Erin.

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Need help on physics/momentum

koban [17]

Answer:

vf=11.67m/s

Explanation:

vf:

Δp=m(vf-vi)

80=12(vf-5)

80=12vf-60

140=12vf

vf=11.67m/s

pf:

p=m*v

p=12*11.67

p=140.04 N*s

Hope this helps

5 0

3 years ago

Having trouble with a physics class problem. Help?

tekilochka [14]

I just did this lol good luck

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3 years ago

Match the descriptions to the feature,

Marysya12 [62]

Answer:

Vertex: Point where the principal axis and mirror meet

Focal point: Point we are reflected light converges or appears to diverge

Focal length: distance from the center of a mirror to the focal point

Principal axis: line that runs to the center of curvature to a mirror

Center of curvature: sensor of spherical mirror from which a curved mirror was cut

Explanation:

Just did the assignment on Edge.

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3 years ago

Which characteristics are common to most salamanders? Check all that apply.

nikitadnepr [17]

They undergo internal fertilization. They lose their tails as adults. They have wet, moist skin. They have long, strong legs. They begin life with gills.

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2 years ago

Which is not a branch of natural science: biology, chemistry, physics, psychology?

eduard

Psychology isn't a natural science

6 0

3 years ago

Read 2 more answers