3 years ago

Please help will mark brainleist ASAP

Physics

2 answers:

-Dominant- [34]3 years ago

8 0

B because I took that test

kiruha [24]3 years ago

4 0

Answer:

B - Earth's path around the Sun

Explanation:

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ANSWER THIS AND YOU WILL BE THE BRAINLIEST

VladimirAG [237]

Answer:

Explanation:

it is correct

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3 years ago

A girl pulls her younger brother on a sled along a flat sidewalk (the total mass of the sled is 30kg). A frictional force of 50N

harkovskaia [24]

Answer:

6.13 s

219 N

Explanation:

Newton's law in the x direction:

∑F = ma

150 cos 30° N − 50 N = (30 kg) a

a = 2.66 m/s²

Δx = v₀ t + ½ at²

(50 m) = (0 m/s) t + ½ (2.66 m/s²) t²

t = 6.13 s

Newton's law in the y direction:

∑F = ma

Fn + 150 sin 30° N − (30 kg) (9.8 m/s²) = 0

Fn = 219 N

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3 years ago

How long would it take you to travel 163 meters at a speed of 33 meters per second?

Leviafan [203]

Speed=

$33m {s}^{ -1}$

Distance=

$163m$

speed= distance/time

So,

Time= distance/speed

Time= 163/33

$\huge\underline\mathtt\colorbox{cyan}{4.9393s}$

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3 years ago

Here is a "formula" for building a model airplane: 1 body + 2 wings + 4 jet engines + 1 tailpiece → 1 model airplane if a hobbyi

WINSTONCH [101]

Your answer is 44 wings

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4 years ago

Read 2 more answers

Define total mechanical energy

zavuch27 [327]

Answer:

The total mechanical energy is the sum of kinetic and potential energies: E = K + U. The law of conservation of total mechanical energy states that the sum of the kinetic energy and potential energy is constant in time.

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3 years ago