Answer:
c).
Explanation:
As we know that weight of the automobile is given here
so weight = mass times gravity
now from Newton's law
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
Answer:
a) v=3.166 m/s
b) μ=0.0169
Explanation:
a)
The motion is totally inelastic collision so the mass of the person and the mass of the sled in the second part of the motion are add both.
b)
The motion have friction so the force and coefficient can be find using Newtons second law where
d. Butane
Explanation:
The question is asking about the chain isomerism of the compounds.
a. Methane - have 1 carbon atom and does not have isomers.
c. Propane - have 3 carbon atoms and does not have isomers.
b. Ethane - have 2 carbon atoms and does not have isomers.
d. Butane - have 5 carbon atoms and does have two isomers.
You may find the structure of the isomers in the attached picture.
Learn more about:
structure of organic compounds
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Answer: Marie Curie's work with Becquerel made her more curious and prompted her to research and experiment with radioactivity.
Explanation:
Henri Becquerel was a French physicist who in 1896 discovered a new property of matter (which was later called <u>radioactivity</u>). This was accidentally observed when Becquerel found out that uranium salt was spontaneously emitting some kind of rays that went through different substances and were able to veil even a photographic film.
Then Marie Curie and her husband Pierre Curie carried out more experiments to study, in a <u>quantitative way</u>, the radiation emitted by the salts Becquerel studied <u>cualitatively,</u> and other salts that contained uranium. During this process they found other radioactive substances, such as: thorium, polonium and radium.
For that reason, the three of them were awarded the Nobel Prize in Physics in 1903 for their discovery of radioactivity.