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1 year ago

PLEASE HELP ASAPP!!!

Physics

1 answer:

Sati [7]1 year ago

7 0

Answer:

hello

Explanation:

for average speed the total distance is important so.

and you must convert min to hour 15 min is 1/4 or 0.25 hour

$s = \frac{x}{t} = \frac{12}{0.25} = 48 \frac{km}{h}$

for average velocity the straight line distance is important so

$v = \frac{d}{t} = \frac{8}{0.25} = 32 \frac{km}{h}$

hope you understand

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natali 33 [55]

Answer:

a) Yes because spiderman isn’t part of the system (the train), so he exerts an external force on the system, causing it to slow. The sign is negative because the train is slowing negative.

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I hope this helps! :)

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3 years ago

A block slides down a frictionless plane having an inclination of 15.0°. The block starts from rest at the top, and the length o

nalin [4]

Answer: check the pic

Explanation:

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3 years ago

The waves used by a microwave oven to cook food have a frequency of 2.45 gigahertz calculate the wavelength of this type of wave

fenix001 [56]

Electromagnetic wave bc I studied that early in the year

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3 years ago

Find the net force and acceleration. 15 points. Will give brainliest!

gladu [14]

Answer:

$\boxed{F_{net} = 28.7 \ N}$

$\boxed{a = 2.1 \ m/s^2}$

Explanation:

Finding the net force:

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$F_{k} = (0.16)(13.6)(9.8)\\$

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$F_{net} = F - F_{k}\\F_{net} = 50 - 21.32\\$

$F_{net} = 28.7 \ N$

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$a = \frac{F_{net}}{m}$

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3 years ago

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Aneli [31]

Answer:

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Explanation:

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The radiant energy transferred from the Sun heats up the Earth, including the car's interior.

7 0

3 years ago