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My name is Ann [436]
3 years ago
10

Is the outer or inner core liquid

Physics
1 answer:
zheka24 [161]3 years ago
5 0
Inner core is liquid
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Think and discuss: Why do you think the rate of temperature change does not stay constant over time? If possible, discuss your a
gogolik [260]

Because the temperature of the place its contained in is constantly changing, for example, if you put a room temperature item in the fridge it will become cold, or whatever the temperature you set your fridge to.

6 0
3 years ago
The model shows the star Wolf 359, the sun, and Star X. It takes 7.8 years for light produced on Wolf 359 to reach the sun.
saul85 [17]

Answer:

390 light-years

Explanation:

50 x 7.8 =390

4 0
2 years ago
What is the change in air pressure over a given distance called?.
emmainna [20.7K]
The change in pressure measured across a given distance called a Pressure Gradient. The pressure gradient creates a net force that is directed from higher to lower pressure and is called the Pressure Gradient Force. ... As air increases in velocity, it is deflected by the Coriolis Force.
5 0
3 years ago
(1 point) A frictionless spring with a 3-kg mass can be held stretched 1.6 meters beyond its natural length by a force of 90 new
Nonamiya [84]

Answer:

x(t)=0.337sin((5.929t)

Explanation:

A frictionless spring with a 3-kg mass can be held stretched 1.6 meters beyond its natural length by a force of 90 newtons. If the spring begins at its equilibrium position, but a push gives it an initial velocity of 2 m/sec, find the position of the mass after t seconds.

Solution. Let x(t) denote the position of the mass at time t. Then x satisfies the differential equation  

m \frac{d^{2}x}{dt^{2}} +kx=0

Definition of parameters  

m=mass 3kg

k=force constant

e=extension ,m

ω =angular frequency

k=90/1.6=56.25N/m

ω^2=k/m= 56.25/1.6

ω^2=35.15625

ω=5.929

General solution will be

x(t)=c1cos(ωt)+c2Sin(ωt)

x(t)=c1cos(5.929t)+c2Sin(5.929t)

differentiating x(t)

dx(t)=-5.929c1sin(5.929t)+5.929c2cos(5.929t)

when x(0)=0, gives c1=0

dx(t0)=2m/s gives c2=0.337

Therefore, the position of the mass after t seconds is  

x(t)=0.337sin((5.929t)

6 0
3 years ago
What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery?
olga2289 [7]
The formula to use is: I = (<span> ΔV / R )
Once you solve for R, your new formula would be: R= (</span><span> ΔV / I ) 
Plug in your values to get: R = (1.5V / .75A )
Finally, R = 2</span><span>Ω</span>
8 0
3 years ago
Read 2 more answers
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