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vazorg [7]
3 years ago
14

What causes astronauts to appear to float in the space station?

Chemistry
1 answer:
sergij07 [2.7K]3 years ago
6 0
They are in free fall. In a vacuum, gravity causes all objects to fall at the same rate, and since they all are falling together. The astronauts and other objects appear to float when compared with the spacecraft.
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Me ayudan pleaseee.<br><br> ¿Cuál es el nombre del siguiente compuesto?
Rudik [331]

Answer:

1,3,4 - trinitrobenzene

6 0
3 years ago
A plate and frame filter press with 12 frames is used to filter slurry at constant pressure. Total filtration area is 65 ft2 and
Vladimir [108]

Answer:

t_2 = 14.4 min

Explanation:

Given data:

Number of frame is 12+ 8 = 20

Total filtrate is 360 lb

we know

For 1 plate area = \frac{65}{12} ft^2

Then for 20 are PLATE = 20\tmes \frac{65}{12} ft^2 = 108.33 ft^2

filtrate equation is given as

t\frac{\mu_s\times(\alpha v) V^2}{A^2(-\Delta P)}

In the above equation only t and A is variable , all other terms are constant

Therefore we have

\frac{t_2}{t_1}= \frac{A_1}{A_2} = [\frac{65}{105.33}]^2 = 0.36

t_2 = 0.36\times 40 = 14.4 min

t_2 = 14.4 min

5 0
3 years ago
Corn plants may be tall (TT or Tt) or short (tt). The breeding of two parent corn plants results in offspring that are all tall.
zubka84 [21]

Answer:

0%

Explanation:

  • The probability that both of the parents are homozygous recessive is zero.
  • In our case, The gene for tallness is dominant over the gene for dwarfism
  • Therefore; TT is homozygous dominant while tt is homozygous recessive and Tt is heterozygous.
  • Heterozygous genotype (Tt) will exhibit a tall phenotype.
  • When two parents are crossed and all the offsprings are tall then the possible genotype of the parents is either;
  1. Homozygous dominant for both parents or  

       TT x TT

    2. One parent is homozygous dominant and the other is homozygous recessive.

        TT x Tt

  • Therefore, the probability of having both parents as homozygous recessive when all the offspring are tall is Zero.      
8 0
3 years ago
9. Which of the following accurately describes circuits?
Zigmanuir [339]
C. that is the answer to the question
8 0
3 years ago
Two blocks of metal are separated and have different temperatures as shown.
Paladinen [302]

Answer:

A. Heat flows from block 1 to block 2

Explanation:

Thermal or heat energy flows when objects of different temperature come in contact. Heat naturally flows from hot objects (high temperature) to cold objects (low temperature) and will keep on flowing until an equilibrium is reached.

According to this question, two blocks of metal, which are of different temperatures, are illustrated to be in contact. Block 1 is at 60°C while Block 2 is at 25°C. Block 1 is hotter than Block 2, hence, heat will flow from block 1 to block 2.

6 0
3 years ago
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