« previous next »

Author Question: Alkynes are hydrocarbons that characteristically have a) one single bond between two hydrogen ... (Read 78 times)

EY67

  • Hero Member
  • *****
  • Posts: 531
on: Jul 28, 2018
Alkynes are hydrocarbons that characteristically have
  a) one single bond between two hydrogen atoms.
  b) one double bond between two carbon atoms.
  c) one triple bond between two carbon atoms
  d) two double bonds between two pairs of carbon atoms.

Question 2

A rocket moving in outer space maintains a constant acceleration (magnitude = 20 m/s2) while ejecting fuel at a speed of 15 km/s relative to the rocket. If the initial mass of the rocket is 3 000 kg, what is the magnitude of the thrust after 800 kg of fuel have been consumed?
 a. 56 kN
  b. 48 kN
  c. 52 kN
  d. 44 kN
  e. 36 kN


aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Common hydrogen bonds in biological systems Common hydrogen bonds in biological systems
Formation of phosphodiester bond Formation of phosphodiester bond
Withdrawing Medication from Single-Dose or Multiple-Dose Vials Withdrawing Medication from Single-Dose or Multiple-Dose Vials
Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ... Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ...
How to combine two or more polynomial fractions into a single rational expression How to combine two or more polynomial fractions into a single rational expression
Single-serve pods of infant formula Single-serve pods of infant formula
Video: Simple Diffusion - Ion transport

For a complete list of videos, visit our video library