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
Verizon [17]
3 years ago
10

Why is the term minority group no longer effective

Physics
1 answer:
Cloud [144]3 years ago
8 0
The term minority group is no longer effective because these groups now make up significant percentages of the total population
You might be interested in
A mass of 80 g of KNO3 is dissolved in 100 g of water at 50 ºC. The solution is heated to 70ºC. How many more grams of potassium
slava [35]
Hi um i think its At 30 ° C your welcome
7 0
3 years ago
If the output current for the transformer is 1.8 A, find the input current.
Iteru [2.4K]
The answer is 3.16 B
3 0
3 years ago
Read 2 more answers
If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you expect if 4.40-MHz ultrasou
dusya [7]

Answer:

The beat frequency is 0.0019 MHz.

Explanation:

Given that,

Velocity = 0.32 m/s

Frequency = 4.40 MHz

Speed of wave = 1540 m/s

We need to calculate the frequency

Case (I),

Observer is moving away from the source

Using Doppler's effect

f'=\dfrac{v-v'}{v}f

Where, v' = speed of observer

Put the value into the formula

f'=\dfrac{1540-0.32}{1540}\times4.40

f'=4.399\ MHz

Case (II),

Cell is as the source of sound of frequency f' and it moving away from the observer.

Using formula of frequency

f''=\dfrac{v-v_{s}}{v+v_{s}}\times f

f''=\dfrac{1540-0.32}{1540+0.32}\times4.399

f''=4.3971\ MHz

We need to calculate the beat frequency

\Delta f= f'-f''

\Delta f=4.399-4.3971=0.0019\ MHz

Hence, The beat frequency is 0.0019 MHz.

4 0
3 years ago
What properties of Pluto might make scientists think that it is a Kuiper Belt Object?
Nataliya [291]
It is the smallest planet with a bluish color that can probably make it look like a comet
6 0
3 years ago
Suppose an oven's radiation wavelength is 0.125 m. a container with 350.00 g of water was placed in the oven, and the temperatur
ivann1987 [24]
The heat (energy) needed to raise the temperature of the water is given by
Q=m C_S (T_f - T_i)=(350.0 g)(4.18 J/gC)(80C-20C)=87780 J

The wavelength of the radiation of the oven is \lambda=0.125 m, so the energy of a single photon of this radiation is
E=h \frac{c}{\lambda}=(6.6 \cdot 10^{-34}J) \frac{3\cdot 10^8 m/s}{0.125 m}=1.6 \cdot 10^{-24} J

So, the number of photons required to heat the water is the total energy absorbed by the water divided by the energy of a single photon:
N= \frac{Q}{E}= \frac{87780 J}{1.6\cdot 10^{-24}J}=  5.5 \cdot 10^{28} photons
8 0
3 years ago
Other questions:
  • The current in a hair dryer measures 22 amps. The resistance of the hair dryer is 14 ohms what is the voltage
    12·1 answer
  • An antitussive is a A. non-productive cough. B. cough-suppressant medication. C. cough medication used for drying up secretions.
    12·2 answers
  • A chandelier has sockets for 12 light bulbs. Suppose there are 75 of these
    9·1 answer
  • Four waves are described by the following equations, where distances are measured in meters and times in seconds. I. y = 0.12 co
    8·1 answer
  • The atoms of a molecule come from two or more?
    7·2 answers
  • starting from rest , a formula one car accelerates uniformly at 25m\s2 for 30secs. what distance does it cover in the last one s
    7·1 answer
  • If we take away a lot of energy from a liquid what phase will it change to ?
    7·1 answer
  • PLEASE HELP PLS ITS DUE IN 10 MINUTES!!
    7·1 answer
  • Explain constant and changing velocity.
    5·2 answers
  • Which would take more force to stop in 10 seconds: an 8.0-kilogram ball rolling in a straight line at a speed of 0.2 m/sec or a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!