« previous next »

Author Question: Alkynes are hydrocarbons that characteristically have a) one single bond between two hydrogen ... (Read 41 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?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Bacterial colonies, each derived from a single cell Bacterial colonies, each derived from a single c Bacterial colonies, each derived from a single cell Bacterial colonies, each derived from a single c
Hydrogen Bonding and the Properties of Water Hydrogen Bonding and the Properties of Water
The hydrolysis of an amide bond, shown here, is the same reaction The hydrolysis of an amide bond, shown here, is the same reaction
A single cylinder is shown at the top and a four-cylinder engine at the bottom. A single cylinder is shown at the top and a four-cylinder engine at the bottom.
Viral single-strand DNA (circular) Viral single-strand DNA (circular)
Single nucleotide polymorphisms (SNPs) are organized into blocks that are inherited together. These Single nucleotide polymorphisms (SNPs) are organized into blocks that are inherited together. These
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library