B. It represented African Americans and their struggle for equality.Answer:
Explanation:
A sound wave with a wavelength of 3200 cm travels 7,712 meters in 16 seconds. What is the frequency of the wave?
Answer:
frequency=1/time period
=1/16 seconds
=0.0625 Hz
Explanation:
Water is more dense in its solid state.
Water is more dense in its solid state.
This statement is true.
Answer: what is it asking
Explanation:
10. What is momentum of the water bottle before the collision? (read the
scenario again)
0 kg*m/s
O 5 kg*m/s
7 kg*m/s
O 10 kg*m/s
Answer:
O ksm/s
Explanation:
before collision,
Velocity =0
So,momentum of the bottle before collision=mass ×velocity
=mass×0
=0 kgm/s
What is the efficiency of a frictionless ramp that is 10 meters long and 1 meter high?
50%
100%
10%
1000%
Answer:
1000Explanation:
because ( ･ั﹏･ั)( ･ั﹏･ั)( ･ั﹏･ั)
Which of the following is NOT an indication that a chemical reaction took place?
Question 38 options:
New substance formed
Bubbles
Change in shape
Precipitate forms
PLEASEEE HELP ME ILL GIVE U BRAINLEST
Drugs that slow brain and body activities are called
A. hallucinogens.
B. stimulants.
C. depressants,
D. over-the-counter.
25. A car with mass M traveling at speed V has kinetic energy K. What is the kinetic energy of a second car that has the 1/4 times the mass M (1/4 smaller) and twice the speed V (2 x larger) of
the first car?
O 2K
OK
08K
O 4K
Answer: 4k
Explanation: I got it right
A pitcher claims he can throw a 0.174 kg baseball with as much momentum as a speeding bullet. Assume that a 5 g bullet moves at a speed of 1,115 m/s. What must the baseball’s speed (m/s) be if the pitcher’s claim is valid?
Answer:
[tex]320.4\:\mathrm{m/s}[/tex]
Explanation:
The momentum of an object is given by [tex]p=mv[/tex]. Therefore, we have the following equation:
[tex]m_{ba}v_{ba}=m_{bu}v_{bu},\\0.174\cdot v_{ba}=0.005\cdot 1115,\\v_{ba}\approx \boxed{320.4\:\mathrm{m/s}}[/tex]
*Note: it's important to convert grams to kilograms, as kilograms are the SI unit for mass
Which of the following are not vectors?
Answer:
time
Explanation:
For example, displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.
If a force of 10 N acts on an object and an additional force of 6 N acts on the object in
the same direction. What will be the net force be on the object?
4N
60 N
6N
16 N
Answer:
D
Explanation:
For this kind of problem, forces add. F = F1 + F2
F1 = 6 N
F2 = 10 N
F = 6N + 10N
F = 16N
How do the properties of the planets change as you move away from the sun?
Answer:
as we move away from the sun the velocity of the planet decreases
What is represented on the picture?
O Reflection
O Diffraction
Refraction
Induction
How is energy transformed from one form into another?
It could interact with each other.
Could be like plants getting energy from the sun
A thermometer has a scale which starts at -10 Celcius and ends at 110 Celcius. What is the value of the lower fixed point and of the upper fixed point of the scale?
Explanation:
The Kelvin, Celsius, and Fahrenheit scales are the three temperature scales that are most widely used. In most physical experiments the Celsius scale is used to take common measurements, but the Kelvin scale is used for most calculations.
define 1 pascal pressure
Answer:For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa. (For comparison, one pound per square inch equals 6.895 kPa.)
Explanation:A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared.
I hope this helps.... I'm sorry if it doesn't
which feature of a balanced chemical equation demonstrates the law of conservation of mass?
A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow
which items below describes specific kinds of producers.
medical doctor
grocery store owner
a person eating in a restaurant
trial lawyer
computer shopper
Answer:
grocery store owner
medical doctor
trial lawyer
why are there so few top level consumers in massachusetts?
I don't really know the question but they either went extinct or resources, anything could happen
Explain how dangerous floods can be.
PLEASE HELP! GIVING BRAINLIEST
Answer:
Explanation:Standing flood waters can also spread infectious diseases, contain chemical hazards, and cause injuries. Each year, flooding causes more deaths than any other hazard related to thunderstorms. The most common flood deaths occur when a vehicle is driven into hazardous flood waters.
Please answer this!!! I will give brainliest!!!
Answer:
The last one
Explanation:
Answer:
The dotted line from the earth to the moon represents your line of sight when looking at the moon. ... So the basic explanation is that the lunar phases are created by changing angles (relative positions) of the earth, the moon and the sun, as the moon orbits the earth
Explanation:
who is a producer that produces a product that is sold at walmart? please answer thank you!! <3
Answer:
Con Agra and Sare Lee
Explanation:
the total resistance of the circuit
The total resistance of a series circuit is equal to the sum of individual resistances. Voltage applied to a series circuit is equal to the sum of the individual voltage drops. The voltage drop across a resistor in a series circuit is directly proportional to the size of the resistor.
If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm's Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω
Current: The total circuit current is equal to the sum of the individual branch currents. Resistance: Individual resistances diminish to equal a smaller total resistance rather than add to make the total.
Answer: 3
Explanation: If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm's Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.
these 3 questions please. its due in 20 minutes thank you buddy if you answered
Answer:
convert five min into sec
=5*60
=300 sec
speed=distance/time taken
=1200m/300s
=4m/s
speed=distance/time taken
5m/s=2000m/time taken
5*time taken=2000m
time taken =2000m/5m/s
time taken =400 sec
convert 3 min to second
=3*60
=120 sec
velocity=120/120
=1m/s
Explanation:
The formula that'll be used for all these questions–
Speed = Distance / Time — x
Or, Distance/ Speed = Time — y
________________________________
Well, here–Distance = 1200 Meter
Time = 5 minutes
= 5 × 60= 300 SecondsNow, Speed = 1200 / 300 — Formula x
= 4 m/sHence, the speed of the car is 4 m/s.
________________________________
2– Now, here–Speed = 5 m/s
Distance = 2000 Meter
Time Taken = 2000 / 5 – Formula y
= 400 SecondsHence, the time taken by the car for the journey is 400 seconds.
________________________________
3– Then here,We know that Velocity = Displacement / Time
By the way, the distance traveled in a straight line is called displacement.
And, speed is a definite direction is called velocity.
Now Here, Displacement = 120 meters
Time = 3 Min= 3 × 60= 180 SecondsFinally, Velocity = 120 / 180
= 2/3 m/s= 0.66 m/sHence, the Velocity of the object is 0.66 m/s.
_______________________________
A wire carries a current of 6.52 A in a direction that makes an angle of 44.8 degrees with the direction of a magnetic field of strength 0.258 T. What is the magnetic force on a 3.61 m length of wire
Answer:
[tex]F=4.27N[/tex]
Explanation:
From the question we are told that:
Current [tex]I = 6.52 A[/tex]
Angle [tex]\theta= 44.8 \textdegree[/tex]
Magnetic field [tex]B= 0.258 T.[/tex]
Length [tex]l=3.61m[/tex]
Generally the equation for Magnetic force F is mathematically given by
[tex]F=BIlsin\theta[/tex]
Therefore
[tex]F=0.258*6.52*3.61*sin 44.8[/tex]
[tex]F=4.27N[/tex]
Calculate the amount of force required to produce motion in a car of 1000kg with an acceleration of 5m/s square.
Answer:
5000 N
Explanation:
F=ma
=1000*5
=5000N
Here's the solution,
mass = 1000 kgacceleration = 5 m/s²now, we know
[tex] \large \boxed{f = m \times a}[/tex]
so,
[tex] \hookrightarrow \: f = 1000 \times 5[/tex][tex] \hookrightarrow \: f = 5000[/tex]The force required is 5000 Newtons.
what are the effects of atmospheric pressure
Answer:
Cloudiness, Wind, and Precipitation. There's more effects produced because of force is more if the surface of the area is smaller, and less when the surface is larger. It also affects weather, it can be measured with a barometer.
Explanation:
Mr Mann cut a cucumber. Mr Mann said, you have performed a chemical change. Is he right?
Answer:
No.
Explanation:
The cut cucumber is still a cucumber.
Answer:
Nope.
Explanation:
Chemical change is transforming the cucumber into a pickle. However, you need vinegar, so it isn't a full change.
Therefore, Mr. Mann would not be right either way, because all he did was cut a cucumber, and he should probably get some help with all this "chemical change".
What are the types of potential energy?
Answer:
Gravitational, Electrical, Magnetic, elastic potential, and chemical energy
Explanation:
When I did some research, I found 5 types of potential energy, so list the four that either came up in your lesson or are familiar to you:
Gravitational, Electrical, Magnetic, elastic potential, and/or chemical energy.
The light intensity incident on a metallic surface with a work function of 1.88 eV produces photoelectrons with a maximum kinetic energy of 1.2 eV.
if the frequency of the light is doubled, what is the maximum kinetic energy of the photoelectrons?
Answer in units of eV.
Answer:
KE = KE (incidental) - KE of emitted photons
or KE = h * f - Wf
So h * f = KE + Wf = 1.2 + 1.88 = 3.08 incident energy
If you double the frequency then h * f = 6.16
KE = 6.16 - 1.2 = 4.96 eV
Read the scenario below and answer the question that follows.
Daniel has been describing situations about being stalked by a government agency that is trying to recover information implanted in his brain. He will also babble incoherently, soil his clothing with excrement, and hold a statue-like pose for hours at a time.
Daniel can most likely be diagnosed with __________ schizophrenia.
A.
paranoid
B.
catatonic
C.
disorganized
D.
undifferentiated
Please select the best answer from the choices provided
A
B
C
D
Answer:
Its D
Explanation:
you're welcome
In this case, Daniel can most likely be diagnosed with undifferentiated schizophrenia (Option D).
What is schizophrenia?Schizophrenia is a mental disorder characterized by disturbance in the cognitive processes of the individual.
Schizophrenia is generally a progressive mental disease where a person suffers emotional disturbance.In conclusion, Daniel can most likely be diagnosed with undifferentiated schizophrenia (Option D).
Learn more about Schizophrenia here:
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