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Vlada [557]
4 years ago
9

Which factor has no effect on the motion of a mass on a spring?

Physics
1 answer:
evablogger [386]4 years ago
6 0
E. Acceleration is the answer
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A 148 g ball is dropped from a tree 11.0 m above the ground. With what speed would it hit the ground
forsale [732]

Answer:

14.68m/s

Explanation:

As per the question, the data provided is as follows

Mass = M = 0.148 kg

Height = h = 11 m

Initial velocity = U = 0 m/s

Final velocity = V

Gravitational force = F

Mass = M

Based on the above information, the speed that hit to the ground is

As we know that

Work to be done = Change in kinetic energy

F ( S) = (\frac{1}{2} ) M ( V^2 - U^2 )

M g h = (\frac{1}{2} ) M ( V^2 - U^2 )

g h = (\frac{1}{2} ) ( V^2 - U^2 )

V^2 - U^2 = 2gh

V^2 - 0 = 2gh

V = \sqrt{2 g h}

= \sqrt{2\times9.8\times11}

= 14.68m/s

7 0
3 years ago
What is the pressure at the bottom<br> of a 2.50 m deep pool of water?
Grace [21]

Answer:

Pressure = Density x Gravity acceleration x Height

Density of water = 1000 Kgm^-3

Gravity acceleration = 9.8 ms^-2

So it is 4.50.

Hope this helps and please mark me brainliest!

8 0
3 years ago
In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles
alexandr402 [8]

Answer:

Explanation:

We shall apply conservation of mechanical energy

kinetic energy of alpha particle is converted into electric potential energy.

1/2 mv² = k q₁q₂/d , d is closest distance

d = 2kq₁q₂ / mv²

= 2 x 9 x 10⁹ x 79e x 2e / 4mv²

= 1422 x2x (1.6 x 10⁻¹⁹)² x 10⁹ /4x 1.67 x 10⁻²⁷ x (1.5 x 10⁷)²

= 3640.32 x 10⁻²⁹ /2x 3.7575 x 10⁻¹³

= 484.4 x 10⁻¹⁶

=48.4  x 10⁻¹⁵ m

8 0
4 years ago
Why does the moon have a stronger effect on tides than the sun?
Nezavi [6.7K]
The moon is closer to the earth than the sun
4 0
3 years ago
What two things determine whether a molecule is polar?
OverLord2011 [107]

Answer:

c

Explanation:

6 0
3 years ago
Read 2 more answers
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