« previous next »

Author Question: Particles composed of quarks are a. photons. b. leptons. c. neutrinos. d. W and Z bosons. e. ... (Read 29 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jul 28, 2018
Particles composed of quarks are
 a. photons.
  b. leptons.
  c. neutrinos.
  d. W and Z bosons.
  e. baryons and mesons.

Question 2

An observer measures the North Star (Polaris) at an altitude of 70. The observer's latitude is
 a. 25N.
  b. 20N.
  c. 105N.
  d. 70N.
  e. none of these.


cici

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

e

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

A biofilm composed of a community of microorganisms glued by mucilage to a surface. A biofilm composed of a community of microorganisms glued by mucilage to a surface.
Artist's impression of an electron splitting up into two new particles Artist's impression of an electron splitting up into two new particles
Formation of heterogeneous ribonucleoprotein particles (hnRNPs) and export of mR Formation of heterogeneous ribonucleoprotein particles (hnRNPs) and export of mR
Elementary particles included in the Standard Model Elementary particles included in the Standard Model
Environmental Monitoring (EM) - viable air particles (Volumetric) Environmental Monitoring (EM) - viable air particles (Volumetric)
Systems with Three or More Particles Systems with Three or More Particles
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library