Answer:
D. 60.3 kilometers per hour
Explanation:
Hello,
In this case, we first compute the miles in kilometres:

Then the minutes in hours:

Finally, the velocity:

Thus, answer is D. 60.3 kilometers per hour
Best regards.
Here are all of the organ systems with some examples of organs found in each system:
Integumentary (skin, hair, nails)
Skeletal (bones)
Muscular (smooth, cardiac, and skeletal muscles)
Circulatory (heart, arteries, veins)
Respiratory (lungs, diaphragm, larynx)
Digestive (stomach, intestines, liver)
Answer : Hypothesis - When a new concept that is tested in a scientific investigation is used it is called as hypothesis.
Explanation : Hypothesis is defined as supposition or proposed explanation made on the basis of limited evidence, which acts as a starting point for any further investigation on a particular topic.
When a scientific investigation is conducted there is a quest to find the best possible answer to a question, using a scientific method.
In turn, the scientific method is defined as a systematic process in which it involves using measurable observations to formulate, test or modify a hypothesis.
Answer:
The figures and parameters to answer this question are not clearly stated, so I will answer it in the closest best way I can.
Explanation:
Molality of alanine = mole / weight of solvent( kg)
= (170×1000)/(89×600)
= 3.18 molal
We know ∆ Tf = Kf × m
Kf = ∆ Tf / molality
= 7.9/3.18 = 2.48 °c.kg.mol-1
Now using the value of cryoscopic constant we calculate can't Hoff factor for Ammonium chloride.
i = ∆ Tf /( Kf × molality of NH4Cl)
= (24.7 × 53.5 × 600) /(2.48 × 170 × 1000)
= 1.8