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Tems11 [23]
3 years ago
5

Students watched a cartoon and then rated how funny they thought the cartoon was.

Physics
1 answer:
Ira Lisetskai [31]3 years ago
7 0
Control: same cartoon
independent: different students
dependent: how funny they find it
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Charlie Brown kicks a football at 24.5 m/s at 35.0. What is the maximum height of the ball?
lozanna [386]

Answer:

d = 10.076 m

Explanation:

We need to obtain the velocity of the ball in the y direction

Vy  = 24.5m/s * sin(35) = 14.053 m/s

To obtain the distance, we use the formula

vf^2 = v0^2 -2*g*d

but vf = 0

d = -vo^2/2g

d = (14.053)^2/2*(9.8) = 10.076 m

5 0
3 years ago
What happens to molecules when their kinetic energy decreases?
Illusion [34]

Answer:

The speed of molecule decreases and temperature also decreases

Explanation:

Kinetic energy of the molecules of a subsance is directly proportional to the temperature of molecule So as the kinetic energy decrease, temperature also decreases. decreses their speed.

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3 years ago
Threshold potential refers to the membrane potential required to:
ivanzaharov [21]

B. initiate an action potential.

Action potentials are initiated when a depolarization reaches a threshold potential. This threshold potential varies, but is normally around 55 or 50 millivolts above the resting potential of the cell, which implies that the input current of sodium ions exceeds the output current of potassium ions.

4 0
3 years ago
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A 90 kg ice hockey goalie, originally at rest, catches a 0.150 kg hockey puck slapped at him at a velocity of 43.1 m/s. Suppose
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not sure i think its b

Explanation:

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Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32.4 cm. If he measures the fre
sergeinik [125]
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So, option D is your correct answer.

Hope it helped.
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3 years ago
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