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Airida [17]
2 years ago
12

A system can only achieve a lower energy state by:_______

Physics
1 answer:
bezimeni [28]2 years ago
7 0
Transferring its energy to its surroundings.
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What is the atomic weight of a penny?
Gnom [1K]
I actually know the answer to this one, you use pennies to find the atomic weight of a penny, it really doesn't have a weight. LOL

4 0
3 years ago
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Which objects have both potential and kinetic energy? Check all that apply.
wariber [46]
A falling raindrop
Kinetic energy and potential energy are both applied when a body or object is falling.
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Calculate the accleration of a 25-Kg object that moved with force of 300 N
inysia [295]
F=ma
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2 years ago
Block A weighs 14 lb and block B weighs 5 lb If B is moving downward with a velocity (vB)1 = 3 ft/s at t = 0, determine the velo
kolezko [41]

Velocity, va2 = 10.5 ft/s

<u>Explanation:</u>

From the figure:

Length of the cable = Sa + 2Sb = l

∴ vₐ = -2vb

Applying the principle of Impulse and momentum in x-direction

mv_x_1 + \int\limits^t_t {F_x} \, dt = mv_x_2

Limit is t1 to t2

-(\frac{14}{32.2}) (2) (3) - T = \frac{14}{32.2} v_y_2                           -(1)

Applying the principle of Impulse and momentum in y-direction

mv_y_1 + \int\limits^t_t {F_y} \, dt = mv_y_2

Limit is t1 to t2

(\frac{5}{32.2}) (3) - 2T + 3 = -\frac{5}{32.2} \frac{v_y_2}{2}                            -(2)

Solving equation (1) and (2), we obtain

T = 1.6lb

va2 = 10.5 ft/s

8 0
3 years ago
Friction force affects the work done by the applied force.<br><br>T OR F ​
lakkis [162]

Answer:

TRUE.

Explanation:

YES IT EFFECTS.

IT MAY HELP YOU.

7 0
2 years ago
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