1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arada [10]
3 years ago
10

Ms. Sullivan's class is designing a miniature roller coaster. After first setting it up, they find that it didn't have enough sp

eed to go through the loop de loop. Instead of taking out the loop, they decide to increase the height of the first hill the coaster goes down, and this adds the speed needed to make it through the loop. What would be a drawback to this plan in real life? A) No one likes loop de loops. B) There is no downside to this plan. C) A higher hill means a scarier ride. D) A higher hill takes more time and material to build.
Chemistry
1 answer:
Archy [21]3 years ago
4 0

Letter D.

The scarier the better, and many people like loops

You might be interested in
Which of the following statements about moles is correct? A mole of Cu atoms has the same number of atoms as a mole of He atoms.
HACTEHA [7]
There are two that seem correct to me but i would go with the first answer choice, a mole of cu atoms has the same number or atoms as a mole of he atoms.
8 0
3 years ago
Read 2 more answers
What is true valence electrons?
dangina [55]

Answer:

Energy level where all chemical reactions occur. The remaining electrons are 'core' electrons that do not react.

Explanation:

6 0
3 years ago
How to clean a nose piercing with antibacterial soap?.
pychu [463]
Cleaning the nose piercing with a few simple steps will help prevent pre-existing conditions like infections, allergic reactions or skin damage. Performing regular maintenance will keep your piercing cleaner, more comfortable and easier to clean in the future.(Remember: If you have any problems I recommend visiting a doctor at your earliest convenience!) Antibacterial soap is great at reducing inflammation and clearing up infections. You should soak your nose in it regularly and use a clean cloth to gently wash away any particles that may have fallen into the septum.
5 0
2 years ago
Calculate the mass percent of calcium in Ca(OH)2?
gulaghasi [49]

Answer:

54.092%

Explanation:

molar mass of ca(oh)2 is 74.09268g/mol

convert grams Ca(oh)2 to moles

40.078+(15.9994+1.00794)

4 0
3 years ago
The Reynolds number, Re, is a dimensionless number used to characterize different flow regimes in a fluid. The Reynolds number c
Wittaler [7]

Answer:

Re=2094,76

Explanation:

For a fluid that circulates inside a straight circular pipe, the Reynolds number is given by:

Re=\frac{pvD}{u}

where (using the international measurement system):

  • ρ: density of the fluid [kg/m3]
  • v: velocity of the fluid [m/s]
  • D: diameter of the pipe through which the fluid circulates [m]
  • μ: dynamic viscosity [Pa.s]

To solve the probelm, we just need to replace our data using <u>THE CORRECT UNITS</u> in the Reynolds number equation. So we have:

ρ=1051 kg/m3,

v=34,3 cm/s=0,343 m/s

D=2,15 cm = 0,0215 m

μ = 3,7 cp * 10^-3 Pa.s/1 cp = 3,7*10^-3 Pa.s

Replacing in the main equation:

Re=\frac{1051\frac{kg}{m^{3} }*0,343\frac{m}{s}*0,0215m  }{3,7*10^{-3}Pa.s } =2094,76

So the Reynolds number is 2094,76 (note that the Reynolds number is a dimensionless quantity).

3 0
3 years ago
Other questions:
  • Which law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions? Boyle's law Charles'
    9·2 answers
  • What is 1 +1 (a) 11 (b) 3 (c) 6 (d) 2
    7·2 answers
  • B)
    7·1 answer
  • Oh yum!  Mrs. Stewart is making lemonade!  In a pitcher, she mixes 1/2 cup of sugar, 8 cups of water and 1/2 cup of lemonade mix
    7·1 answer
  • PLEASE HELP
    13·1 answer
  • A 63.5 g sample of an unidentified metal absorbs 355 ) of heat when its temperature changes
    6·1 answer
  • Describe the composition of a molecular compound. What are two major characteristics of molecular compounds?
    7·1 answer
  • Water contains 2 polar bonds and the molecule is polar<br>True<br>False​
    11·1 answer
  • Direction: Read each situation in the table below, then state if it is a density-independent limiting factor or a density-depent
    11·1 answer
  • Other that uses probing are
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!