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romanna [79]
4 years ago
13

What does the term Hubble time mean in cosmology, and what is the current best calculation for the Hubble time?

Physics
1 answer:
balu736 [363]4 years ago
4 0

Hubble time in cosmology means the estimated age of the universe and the best calculation for it is T=1/H, where H is the Hubble constant
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A ladder is balanced against a wall without moving. What<br> must be true about this ladder?
Mandarinka [93]

Answer:a no net force

Explanation: google lol

6 0
3 years ago
I need help on number 4 and 5
Strike441 [17]

4 is G. BB and Bb because that is what you are analyzing the product of.

5 is C. The round shape is obviously a dominant trait since mixing with a wrinkled shape didn't have an effect. The wrinkled shape is recessive.

7 0
4 years ago
The temperature of a quantity of an ideal gas is a. one measure of its ability to transfer thermal energy to another body. b. pr
solong [7]

Answer:

d. correctly described by all the statements above.

Explanation:

Kinetic molecular theory of gases states that gas particles exhibit a perfectly elastic collision and are constantly in motion.

According to the kinetic-molecular theory, the average kinetic energy of gas particles depends on temperature.

This ultimately implies that, the average kinetic energy of gas particles is directly proportional to the absolute temperature of an ideal gas. Thus, an increase in the average kinetic energy of gas particles would cause an increase in the absolute temperature of an ideal gas.

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

Generally, the temperature of a quantity of an ideal gas is;

a. a measure of the ability of an ideal gas to transfer thermal energy to another body.

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8 0
3 years ago
Number of atoms in a formula​
zimovet [89]
The formula must have at least 2 atoms
4 0
3 years ago
When jumping, a flea accelerates at an astounding 1400 m/s2 , but over only the very short distance of 0.55 mm . If a flea jumps
Brums [2.3K]

Answer:

0.079 m or 79 mm

Explanation:

Using the equation of motion

v = √(2as)

Where v is the velocity

a is acceleration = 1400m/s²

s is the distance = 0.55 mm = 0.00055m

Therefore

= √(2 × 1400m/s² × 0.00055 m) = 1.54 m/s

Therefore; initial velocity = 1.54 m/s

Then we use the equation of motion s = v² / 2g

Take g = 9.8 m/s²

Therefore

= (1.54m/s)² / 19.6 m/s²

= 0.079 m or 79 mm

8 0
4 years ago
Read 2 more answers
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