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4 years ago

Whatcan you say to care our mother earth

Physics

2 answers:

kodGreya [7K]4 years ago

7 0

Answer:

You can say, use public transportation

Reil [10]4 years ago

5 0

Recycle & try to not use as much packaging that cannot biodegrade.

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Any correct ans guess for 30 pts and brainlist

Amiraneli [1.4K]

Answer:

a) ii

b) i

c)iii

d)iii

e) i

f)iii

Explanation:

i hope this will help

8 0

3 years ago

Read 2 more answers

I need c only please answer it

Elodia [21]

It will be moving at high speeds

5 0

3 years ago

In a shipping company distribution center, an open cart of mass 50.0 kg is rolling to the left at a speed of 5.00 m/s. Ignore fr

spin [16.1K]

Answer:

a) $v_p=9.35m/s$

Explanation:

From the question we are told that:

Open cart of mass $M_o=50.0 kg$

Speed of cart $V=5.00m/s$

Mass of package $M_p=15.0kg$

Speed of package at end of chute $V_c=3.00m/s$

Angle of inclination $\angle =37$

Distance of chute from bottom of cart $d_x=4.00m$

Generally the equation for work energy theory is mathematically given by

$\frac{1}{2}mu^2+mgh=\frac{1}{2}mv_p^2$

Therefore

$\frac{1}{2}u^2+gh=\frac{1}{2}v_p^2$

$v_p=\sqrt{2(\frac{1}{2}u^2+gh)}$

$v_p=\sqrt{2(\frac{1}{2}v_c^2+gd_x)}$

$v_p=\sqrt{2(\frac{1}{2}(3)^2+(9.8)(4))}$

$v_p=9.35m/s$

4 0

3 years ago

A plane is flying at an elevation of 32000 feet. It is within sight of the airport and the pilot finds that the angle of depress

prohojiy [21]

Answer:x=79,202.77 ft

Explanation:

Given

plane is at a height of 32000 ft

angle of depression is $22^{\circ}$

let x the distance between the point directly below the plane and airport be x

from diagram

$\tan (22)=\frac{height}{x}$

$\tan (22)=\frac{32000}{x}$

x=79,202.77 ft

distance between plane and airport

$\sin (22)=\frac{32000}{h}$

$h=\frac{32000}{\sin (22)}$

h=85,422.94 ft

6 0

4 years ago

If you were trying to build a sound proof room, which of the following materials would you choose in order to absorb the most so

LuckyWell [14K]

The sound absorption for wood is greater than the sound absorption coeffiecient for concrete at most frequencies, hence based on the coefficient of absorption for each material, wood is the best choice.

7 0

3 years ago