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
ahrayia [7]
3 years ago
10

if a and b are directly proportional and the value of a becomes 1/4 as much ,what happens to the value of b

Chemistry
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

Becomes 1/4 as much

Explanation:

If a and b are directly proportional, this means we may write an equality between them if some proportionality constant, k, is included, so that:

a=kb

The equation shows that:

k=\frac{a}{b}

And since k is a constant, this would imply that increasing a by some fraction would also require b to increase by the same fraction.

In the context of this problem, we're given that a becomes 1/4 as much, meaning b should also become 1/4 as much to keep the same proportionality constant, k.

You might be interested in
Subway Surfer number 3 it says the color of a substance is an example of a(n) ___ (in science) pick these choices on the image.
RideAnS [48]
C is your answer. Because if you add two of them together you get a compound.
3 0
3 years ago
Consider the following types of electromagnetic radiation:
liq [111]

Explanation:

Electromagnetic wave              Wavelength

(1) Microwave  =   1 m to 1 mm = 10^9 nm to 10^6 nm

(2) Ultraviolet  =    10 nm to 400 nm

(3) Radio waves  =   1 mm to 100 km = 10^6 nm to 10^{14}nm

(4) Infrared  =    700 nm to 1 mm

(5) X-ray  =   0.01 nm to 10 nm

(6) Visible =   400 nm t0 700 nm

a) In order of increasing wavelength:

: 5 < 2 < 6 < 4 < 1 < 3

b) Frequency of the electromagnetic wave given as:

\nu=\frac{c}{\lambda }

\nu = frequency

\lambda = Wavelength

c = speed of light

\nu \propto \frac{1}{\lambda }

So, the increasing order of frequency:

: 3 < 1 < 4 < 6 < 2 < 5

c) Energy(E) of the electromagnetic wave is given by Planck's equation :

E=h\nu

E\propto \nu

So, the increasing order of energy:

: 3 < 1 < 4 < 6 < 2 < 5

6 0
3 years ago
Two copper pennies has a mass of 6.64g how many moles of copper do they contain<br>​
Ann [662]

Answer:

It contains 0.105 mole cu

Explanation:

3 0
3 years ago
Match the terms below to the correct definitions
Yakvenalex [24]

Answer:

Explanation:

1=i

4=d

5=m

6=c

8=o

9=j

10=a

13=b

14=h

15=l

Theses are the ones i knew

4 0
3 years ago
A 52.0 g of Copper (specific heat=0.0923cal/gC) at 25.0C is warmed by the addition of 299 calories of energy. find the final tem
Leto [7]

Answer : The final temperature of the copper is, 87.29^oC

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat gained  = 299 cal

m = mass of copper = 52 g

c = specific heat of copper = 0.0923cal/g^oC      

\Delta T=\text{Change in temperature} 

T_{final} = final temperature = ?

T_{initial} = initial temperature = 25^oC

Now put all the given values in the above formula, we get the final temperature of copper.

299cal=52g\times 0.0923cal/g^oC\times (T_{final}-25^oC)

T_{final}=87.29^oC

Therefore, the final temperature of the copper is, 87.29^oC

4 0
3 years ago
Other questions:
  • The gram formula mass of a compound is 48 grams. The mass of 1.0 moles of this compound is
    7·1 answer
  • Which ion is this atom most likely to form?<br> Options:<br> a. Na+<br> b. Na-<br> c. Ne-<br> d. Mg+
    6·2 answers
  • A hurricane and a typhoon are the same thing true or false?
    9·2 answers
  • Convert 4.0 kilometers 2 meters
    12·1 answer
  • What is the volume of SO3 in 835 g SO3?
    13·1 answer
  • Please anyone help please I will pray for you
    15·1 answer
  • if a person in a boat sailed straight across to other side of this lake, which of these statements would be true about the trip?
    13·1 answer
  • The Big Bang theory is used to explain the origins of the universe. Why is this called a theory and NOT a law?
    9·2 answers
  • Round and put into scientific notations 5.624 + 3.19 - 0.2
    11·1 answer
  • 3. If you want to produce 12.6 g of HCl, how many grams of PCls will you need?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!