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777dan777 [17]
3 years ago
13

PLEASE HELP. i will mark brainliest. and do more!

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

I would suggest an easier route. So for example, I would research light energy, where it comes from, and what causes it. I won't be able to do the work for you though.

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Which method will correctly determine whether the forces on an object are balanced or unbalanced?
Morgarella [4.7K]
<span>Subtract the forces in the horizontal direction from the forces in the vertical direction.</span>
4 0
3 years ago
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A 35.9 g mass is attached to a horizontal spring with a spring constant of 18.4 N/m and released from rest with an amplitude of
lidiya [134]

Answer:

7.74m/s

Explanation:

Mass = 35.9g = 0.0359kg

A = 39.5cm = 0.395m

K = 18.4N/m

At equilibrium position, there's total conservation of energy.

Total energy = kinetic energy + potential energy

Total Energy = K.E + P.E

½KA² = ½mv² + ½kx²

½KA² = ½(mv² + kx²)

KA² = mv² + kx²

Collect like terms

KA² - Kx² = mv²

K(A² - x²) = mv²

V² = k/m (A² - x²)

V = √(K/m (A² - x²) )

note x = ½A

V = √(k/m (A² - (½A)²)

V = √(k/m (A² - A²/4))

Resolve the fraction between A.

V = √(¾. K/m. A² )

V = √(¾ * (18.4/0.0359)*(0.395)²)

V = √(0.75 * 512.53 * 0.156)

V = √(59.966)

V = 7.74m/s

8 0
3 years ago
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WhAT is the change IN THE entropy of 2.0kg of h2o molecules when transform at a constant pressure of 1 atm from water at 100 deg
Fynjy0 [20]

Answer:

The entropy change is 45.2 kJ/K.

Explanation:

mass of water at 100 C = 2 kg

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S = H/T = 4520/100 = 45.2 kJ/K

3 0
3 years ago
What tissue composes the basement membrane surrounds cushions blood vessels and nerves
xxTIMURxx [149]

Answer:

Explanation:

Fascia is loose connective tissue that surrounds and interpenetrates all components of the human body including muscles, nerves, blood vessels, and organs. It provides structural integrity, serves as a matrix for intercellular communication, and is involved in biochemical and bioelectric signaling.

5 0
3 years ago
I need help finding the answers to number 4
erastova [34]
It is B. if i'm not mistaking 
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4 years ago
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