1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nastasia [14]
4 years ago
7

Would happen if the rate that Dark Energy is expanding the universe would increase, but if gravity increased with it so the grea

t Rip wouldn't happen??
Physics
1 answer:
mart [117]4 years ago
7 0
Remember Dark Energy is repulsive, the more the faster the universe expands (indeed accelerates), so the faster it would cool down and increase its size, not the other way. Now, no one knows what it is. For instance, if Dark Energy would rather be some other geometric effect, it could have a different ending than just if it is a cosmological constant term. So far, though, all experimental data do not favor anything else that is not compatible with just a cosmological constant ... We'll need to wait few years (~10 years) to get to know much better this with missions and ground experiments that are undergoing or planned to be launched.
You might be interested in
A load of 36 N attached to a spring hanging
Annette [7]

Answer: 115.38N

Explanation:

Firstly, let's determine the constant.

Hooke's law was discovered by Robert Hooke in 1660.

Using hooke's law which states that provided the elastic limit of an elastic material is not exceeded, the force is equal to the extension applied provided all factors are kept constant.

Hooke's Law is a principle of physics that states that the force which is needed to extend or compress a spring by some distance is proportional to that distance

Therefore,

Force=kx

K= F/x

Where Force= 75m

x= 0.065m

K= 75/0.065m

K= 1153. 846N

We can use the constant to find the force when the distance that is stretched(x) is known.

Here

Force=kx

F= 1153.846 × 0.10

F= 115.38N

The force required to stretch it by this amount is 115.38N.

3 0
3 years ago
At what net rate does heat radiate from a 300-m^2 black roof on a night when the roof's temperature is 33.0°C and the surroundin
Fynjy0 [20]

Answer:

24445.85 J/s

Explanation:

Area, A = 300 m^2

T = 33° C = 33 + 273 = 306 k

To = 18° C = 18 + 273 = 291 k

emissivity, e = 0.9

Use the Stefan's Boltzman law

E = \sigma  \times e \times A\times\left ( T^4 -T_{0}^{4}\right )

Where, e be the energy radiated per unit time, σ be the Stefan's constant, e be the emissivity, T be the temperature of the body and To be the absolute temperature of surroundings.

The value of Stefan's constant, σ = 5.67 x 10^-8 W/m^2k^4

By substituting the values

E = 5.64 \times 10^{-8}\times 0.9 \times 300 \times  (306^{4}-291^{4})

E = 24445.85 J/s

7 0
4 years ago
1) O que é Dança????? ​
Naddika [18.5K]

Answer:

La danza, el movimiento del cuerpo de manera rítmica, generalmente con música y dentro de un espacio determinado, con el propósito de expresar una idea o emoción, liberar energía o simplemente deleitarse con el movimiento en sí. La danza es una forma de arte escénico que consiste en de secuencias de movimiento humano seleccionadas a propósito. Este movimiento tiene un valor estético y simbólico, y es reconocido como danza por artistas y observadores dentro de una cultura particular.

4 0
3 years ago
How much energy in Joules (J) would an electric heater that draws 9.5 A when connected to a 120 V supply use if the heater were
leonid [27]
<h2>Energy used by heater is 8.21 x 10⁶ J</h2>

Explanation:

Energy = Power x Time

Power = Voltage x Current

Voltage = 120 V

Current = 9.5 A

Power = Voltage x Current

Power = 120 x 9.5 = 1140 W

Time = 2 hours = 2 x 60 x 60 = 7200 s

Energy = Power x Time

Energy = 1140 x 7200

Energy = 8208000 J

Energy used by heater is 8.21 x 10⁶ J

7 0
4 years ago
A _____ provides rapid calculus removal by converting very-high-frequency sound waves into mechanical energy and reduces operato
sveticcg [70]

Answer:

The Ultrasonic Scaler

Explanation:

8 0
2 years ago
Other questions:
  • The diameter of Mars is 6794km, and its minimum distance from the earth is 5.58×10^7 km. When Mars is at this distance, find the
    10·1 answer
  • An ideal spring has spring constant ks (to distinguish it from the electrostatic constant k) and equilibrium length l. Then, you
    10·1 answer
  • A 591 μF capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 88.5 V
    10·1 answer
  • On a smooth horizontal floor, an object slides into a spring which is attached to another mass that is initially stationary. Whe
    8·1 answer
  • The built-up beam is formed by welding together the thin plates of thickness 5 mm. determine the location of the shear center o.
    15·1 answer
  • 13. If both the directions of velocity and acceleration are negative, ...........
    9·1 answer
  • 9. A substance that has little tendency to changeinto other substances is said to have low
    15·1 answer
  • How does the number of valence electrons affect the reactivity?
    13·1 answer
  • If you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The higher it drops, the more ice
    9·1 answer
  • How is artificial gravity created in spaceships and sattelites ?????? U need some IQ for this
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!