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Sindrei [870]
3 years ago
12

100 Pascal is equal to: A) 100 Newton B) 1000N/m2 C) 100N/m2 D) 10,000N/m2 E) None of these

Physics
2 answers:
Dmitrij [34]3 years ago
8 0
E i thiiinnnlkkkkkkkk
irina1246 [14]3 years ago
4 0

Answer: Choice C)  100 N/m^2

=======================================================

Work Shown:

1 pascal = 1 N/m^2

100 pascals = 100 N/m^2

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A 1.150 kg air-track glider is attached to each end of the track by two coil springs. It takes a horizontal force of 0.900 N to
shutvik [7]

k = 5.29

a = 0.78m/s²

KE = 0.0765J

<u>Explanation:</u>

Given-

Mass of air tracker, m = 1.15kg

Force, F = 0.9N

distance, x = 0.17m

(a) Effective spring constant, k = ?

Force = kx

0.9 = k X0.17

k = 5.29

(b) Maximum acceleration, m = ?

We know,

Force = ma

0.9N = 1.15 X a

a = 0.78 m/s²

c) kinetic energy, KE of the glider at x = 0.00 m.

The work done as the glider was moved = Average force * distance

This work is converted into kinetic energy when the block is released. The maximum kinetic energy occurs when the glider has moved 0.17m back to position x = 0  

As the glider is moved 0.17m, the average force = ½ * (0 + 0.9)

Work = Kinetic energy

KE = 0.450 * 0.17

KE = 0.0765J

4 0
3 years ago
Two footballs (A &amp; B) are thrown with the same amount of force. Football A has a greater mass. Describe the acceleration for
Sauron [17]
Newton's second law gives the relationship between force applied to an object, its mass and its acceleration:
F=ma
where F is the force, m the mass and a the acceleration.

A force F is applied to football A, whose mass is m_A, and so the acceleration of this football will be given by (re-arranging the previous equation)
a_A =  \frac{F}{m_A}

Similarly, the acceleration of football B will be
a_B= \frac{F}{m_B}
where m_B is the mass of football B, and where the force F applied to the two footballs is the same.

Since football A has greater mass than football B, m_A \ \textgreater \  m_B, if we compare the two previous formula we see that the acceleration of football B is greater than the acceleration of football A:
a_B \ \textgreater \  a_A
Therefore, if the same force is applied to the two footballs, football B will accelerate more than football A.
8 0
3 years ago
The container is filled to yh 350 ml mark water is observation or inference?
Lorico [155]
This is an observation.
4 0
3 years ago
A brave child decides to grab onto an already spinning merry‑go‑round. The child is initially at rest and has a mass of 34.5 kg.
ozzi

Answer:

I_1 = 32.5 kg m^2

Explanation:

Here as we know that total angular momentum is always conserved for child + round system

so here by angular momentum conservation we have

I_1 \omega_1 = (I_1 + I_2)\omega_2

here we have

I_2 = mR^2 (inertia of boy)

I_2 = (34.5)(1.45^2)

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now we have

I_1(2\pi 55) = (I_1 + 72.5)(2 \pi 17)

I_1 = (I_1 + 72.5)(0.31)

I_1(1 - 0.31) = 22.4

I_1 = 32.5 kg m^2

3 0
3 years ago
A ball is thrown horizontally. What is the ball's acceleration at its highest point
natka813 [3]
At the highest point of motion the ball comes to rest momentarily,but it is being pulled down due to the effect of gravity,so its net acceleration is downwards. So,just after that point,it starts falling downwards.
4 0
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