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Nana76 [90]
2 years ago
7

Plant and Snail Gizmo

Physics
2 answers:
ser-zykov [4K]2 years ago
7 0
What? Cool okay lol haha
Deffense [45]2 years ago
6 0
Chose the plant to be the best answe chosen more than a plant
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1. Do alto de uma plataforma com 15m de altura, é lançado horizontalmente um projéctil. Pretende-se atingir um alvo localizado n
sveta [45]

Answer:

(a). The initial velocity is 28.58m/s

(b). The speed when touching the ground is 33.3m/s.

Explanation:

The equations governing the position of the projectile are

(1).\: x =v_0t

(2).\: y= 15m-\dfrac{1}{2}gt^2

where v_0 is the initial velocity.

(a).

When the projectile hits the 50m mark, y=0; therefore,

0=15-\dfrac{1}{2}gt^2

solving for t we get:

t= 1.75s.

Thus, the projectile must hit the 50m mark in 1.75s, and this condition demands from equation (1) that

50m = v_0(1.75s)

which gives

\boxed{v_0 = 28.58m/s.}

(b).

The horizontal velocity remains unchanged just before the projectile touches the ground because gravity acts only along the vertical direction; therefore,

v_x = 28.58m/s.

the vertical component of the velocity is

v_y = gt \\v_y = (9.8m/s^2)(1.75s)\\\\{v_y = 17.15m/s.

which gives a speed v of

v = \sqrt{v_x^2+v_y^2}

\boxed{v =33.3m/s.}

4 0
3 years ago
The Earth is constantly spinning on its axis, like you might spin a basketball on your finger. It is this spinning of the Earth
mash [69]

<u>Answer:</u>

The spinning of the earth around its own axis causes day and night.

<u>Explanation:</u>

Earth has two types of motions. It spins around its own axis causing day and night every 12 hours and completes a rotation in 23.93 hours that make a full day. The part of the earth that faces sunlight during spinning experiences day and the other part has night.  It also rotates around the sun and completes one rotation in 365 days that makes a year.

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3 years ago
How much kinetic energy the truck still has
seropon [69]

Answer:

47.5kJ

Explanation:

Before climbing the cliff

E_t = E_k

E_k=\frac{1}{2} mv^2\\E_k=\frac{1}{2} 500*15^2\\\\E_k = 56250J\\

At 2.

E_t = E_k+E_p

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3 years ago
Looters break a statue into pieces. how do you expect the weathering of pieces of rock to change
Naya [18.7K]
This definitely has to do with erosion. We can expect that the statue will weather faster because of more surface area.I hope this is what you were looking for
7 0
3 years ago
What is meant by the term straight line motion?
Igoryamba

Answer:

A

Explanation:

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3 years ago
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