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Kipish [7]
3 years ago
13

PLEASE HELP!! ITS DUE AT 11:59!!

Physics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

14.1 po

sana makatulong

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A ball is thrown at an angle of 38° to the horizontal. What happens to the
finlep [7]

Answer:

Vy = V0 sin 38       where Vy is the initial vertical velocity

The ball will accelerate downwards (until it lands)

Note the signs involved   if Vy is positive then g must be negative

The acceleration is constant until the ball lands

t (upwards) = (0 - Vy) / -g      = Vy / g      final velocity = 0

t(downwards = (-Vy - 0) / -g = Vy / g      final velocity = -Vy

time upwards = time downwards     (conservation laws)

8 0
2 years ago
Una patinadora de 50 kg parte del reposo y después de recorrer 3k alcanza una velocidad de 15 m/s. ¿Qué fuerza neta experimenta
e-lub [12.9K]

Answer:

F_{net} = 1.875\,N

Explanation:

Asúmase que la patinadora experimenta una aceleración constante. La fuerza neta experimentada por la patinadora:

F_{net} = (50\,kg)\cdot \left[\frac{\left(15\,\frac{m}{s}\right)^{2}-\left(0\,\frac{m}{s}\right)^{2} }{2\cdot (3000\,m)} \right]

F_{net} = 1.875\,N

6 0
3 years ago
Which inference about Arthur is supported by the text?
yarga [219]
There is no picture
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What is the resistance in a circuit that is connected to a 20 V battery and has a
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Answer:

R = \displaystyle\frac{V}{I}

R = \displaystyle\frac{20}{75}

R = 0.267Ω (approx)

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A major source of water pollution comes from that washes chemicals and other pollutants from improperty managed land.
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The answer to this would be B
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