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Komok [63]
4 years ago
12

What does the n stand for? Is it north?

Physics
1 answer:
Aleksandr [31]4 years ago
4 0
That would be newton's. You'll be studying or have studied about newton's laws of physics. Both will help you. Hope this helps!
You might be interested in
What is the average speed of a train that travels at 100km/hr for 6 hours and then 120km/hr for 5 hours
Sindrei [870]

Answer:

Explanation:

Average speed = Total distance / Total time.

100 km/hr

r = 100 km / hr

t = 6 hours

d = 6 * 100 = 600 km

120 km / hr

r = 120 km / hr

t = 5 hour

d = 120 * 5

d = 600 km

Total distance = 600 + 600 = 1200 km

Total time = 5 hour + 6 hours = 11 hours.

Average speed = 1200 km / 11 hours = 109.1

5 0
3 years ago
An ice skater is spinning at 6.00 rev/s with his moment of inertia being 0.400 kg/m2. Calculate his new moment of inertia if he
labwork [276]

Answer:

New moment of inertia will be I=1.92kgm^2

Explanation:

It is given initially angular velocity \omega =6rev/sec=6\times 2\pi =37.68rad/sec

Moment of inertia I=0.4kgm^2

Angular momentum is equal to L=I\omega =37.68\times 0.4=15.072kgm^2/sec

Now angular velocity is decreases to \omega =1.25rev/sec=1.25\times 2\times 3.14=7.85rad/sec

As we know that angular momentum is conserved

So 15.072=I\times 7.85

I=1.92kgm^2

So new moment of inertia will be I=1.92kgm^2

4 0
4 years ago
Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 1.25 kg of water d
algol [13]

Energy change = -303050 J

Explanation:

the heat energy Q is given by the formula

Q= m C ΔT

m= mass of water=1.25 Kg

C= specific heat of water= 4180 J/Kg °C

ΔT= change in temperature =55-113= -58°C

Q= 1.25 (4180) (-58)

Q=-303050 J

Negative sign shows that the energy is released or lost.

7 0
4 years ago
Select the correct answer.
Galina-37 [17]

Answer:

C) The densities of the samples are different, so a chemical reaction has occurred.

Explanation:

Given,

The volume of the sample A, v = 45 cm³

The mass of the sample A, m = 0.5 g

The volume of the sample B, v = 65 cm³

The mass of the sample B, m = 1.3 g

To find the whether there is a chemical reaction has occurred, first to examine the physical properties of the samples.

The color of the samples remains the same. This will not lead to valid result. The scientist need to examine further.

Next level is to check the densities of the substance.

The density of the Sample A

                                    ρₐ = 0.5/45

                                        = 0.011 g/cm³

The density of sample B

                                      ρₓ = 1.3/65

                                          = 0.02 g/cm³

On analyzing the densities of the samples, sample A is less denser than sample B.

Hence, a chemical reaction has occurred.

7 0
3 years ago
If an aqueous solution has a slippery feel, which type of solution will it most likely be
kap26 [50]
The aqueous solution will most likely be a base.
7 0
3 years ago
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