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KengaRu [80]
3 years ago
6

14

Physics
2 answers:
anygoal [31]3 years ago
7 0
Hmmm hold on I’m gonna slove it and I’ll get back to you
labwork [276]3 years ago
3 0

Answer:

D. protons and neutrons

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Is vectors and motion in plane same?
suter [353]

Answer:

<em>Plane Motion</em>

<em>Plane Motion One of the most common examples of motion in a plane is Projectile motion.</em>

8 0
2 years ago
NEED HELP!
rjkz [21]
C.<span>a stable internal attribution</span>
4 0
3 years ago
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A ball is dropped from a high rise platform at t=0 starting from rest. After 6 seconds another ball is thrown downwards from the
AlekseyPX

Answer:

73.5 m/s

Explanation:

The position of the first ball is:

y = y₀ + v₀ t + ½ at²

y = h + (0)(18) + ½ (-9.8)(18)²

y = h − 1587.6

The position of the second ball is:

y = y₀ + v₀ t + ½ at²

y = h + (-v) (18−6) + ½ (-9.8)(18−6)²

y = h − 12v − 705.6

Setting the positions equal:

h − 1587.6 = h − 12v − 705.6

-1587.6 = -12v − 705.6

1587.6 = 12v + 705.6

882 = 12v

v = 73.5

The second ball is thrown downwards with a speed of 73.5 m/s

8 0
3 years ago
À A car moves with an initial velocity of 18 m/s due north. Find the velocity of the car after 7 Os if
Nonamiya [84]

Answer:

(a) v_f=28.5m/s

(b) v_f=7.5m/s

Explanation:

Hello.

(a) In this case since the car is moving at an initial velocity of 18 m/s due north, the final velocity is computed considering the acceleration as positive since it is due north as well:

v_f=v_0+at=18m/s+1.5m/s^2*7s\\\\v_f=28.5m/s

(b) In this case, since the car is moving due north by the acceleration is due south it is undergoing a slowing down process, thereby the acceleration is negative therefore the final velocity turns out:

v_f=v_0+at=18m/s-1.5m/s^2*7s\\\\v_f=7.5m/s

Best regards.

3 0
3 years ago
Convert 3.5revolutions to radians.
olga55 [171]

As we know that

1 revolution = 2\pi radian

now we know that

3.5 revolution = 3.5 rev\times \frac{2\pi rad}{1 rev}

3.5 rev = 21.98 rad

so it is 21.98 radian

8 0
3 years ago
Read 2 more answers
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