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kkurt [141]
3 years ago
14

Can anybody help?? If somebody can answer I'd love it!!

Physics
1 answer:
Bas_tet [7]3 years ago
8 0

Answer:

1.

a. T

b. F

c. T

d. F

e. T

2. Liquid, gas, solid

3. Water

4.

a. Solid

b. Gas

c. Water

5.

a. Add heat

b. Remove heat

c. Add heat

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Which of the following is fact-based science rather than part of a personal belief system?
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Which of the following properties of water help to explain why icebergs float in the ocean?
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3 years ago
A small, 300 g cart is moving at 1.20 m/s on an air track when it collides with a larger, 2.00 kg cart at rest?
stiv31 [10]

Answer:

The speed of the large cart after collision is 0.301 m/s.

Explanation:

Given that,

Mass of the cart, m_1 = 300\ g = 0.3\ kg

Initial speed of the cart, u_1=1.2\ m/s

Mass of the larger cart, m_2 = 2\ kg

Initial speed of the larger cart, u_2=0

After the collision,

Final speed of the smaller cart, v_1=-0.81\ m/s (as its recolis)

To find,

The speed of the large cart after collision.

Solution,

Let v_2 is the speed of the large cart after collision. It can be calculated using conservation of momentum as :

m_1u_1+m_2u_2=m_1v_1+m_2v_2

m_1u_1+m_2u_2-m_1v_1=m_2v_2

v_2=\dfrac{m_1u_1+m_2u_2-m_1v_1}{m_2}

v_2=\dfrac{0.3\times 1.2+0-0.3\times (-0.81)}{2}

v_2=0.301\ m/s

So, the speed of the large cart after collision is 0.301 m/s.

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Describe the orbit in which planets revole around the sun
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