This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How many forces act on an upwardly tossed coin when it gets to the top of its path? A) one; the ... (Read 19 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
on: Jul 29, 2018
How many forces act on an upwardly tossed coin when it gets to the top of its path?
 
  A) one; the force due to gravity
  B) two; gravity and the force in the coin itself
  C) three; gravity, the coin's internal force, and a turnaround force
  D) none of the above

Question 2

What, if any, evidence did Galileo have for the law of inertia?
 
  A) A smooth ball slows down when rolling uphill, and speeds up when rolling downhill, so it should maintain an unchanging speed on a level surface.
  B) Using a telescope, he observed meteors and comets moving at unchanging velocity through outer space.
  C) Noting that the length of the year does not change, he concluded that Earth must maintain an unchanging speed when moving around the sun.
  D) All of the above.
  E) He didn't have direct evidence, but proposed the law of inertia only because of the known failures of Aristotelian physics.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

A


xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 29, 2018
Gracias!

chereeb

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

The hierarchy of forces governing protein structure. The hierarchy of forces governing protein structure.
The Australian 20 cent coin features a platypus. The Australian 20 cent coin features a platypus.
The conduction system of the heart; traces the path of the electrical impulse that stimulates the he The conduction system of the heart; traces the path of the electrical impulse that stimulates the he
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Gravitational Forces Gravitational Forces
A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ... A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ...
Video: Neurotransmission at chemical synapses & Excitory and inhibitory potentials

For a complete list of videos, visit our video library