The lower the__ the frequency, the __the pitch
-lower
-higher
Answer:
umm the lower the frequency the higher the pitch
Explanation:
Two charges of 5 x 10-6 C are a certain distance apart. These two positive charges experience 3.6 N of repelling electrical force between them. How far apart are these charges?
Answer:
25 cm
Explanation:
F = k q₁q₂/r²
Substituting values : let the distance be x.
3.6 = (9 x 10^9) (5 x 10^(-6) (5 x 10^(-6)) / x²
3.6 = (225 x 10^(9-6-6) )/x²
3.6 = (225 x 10^(-3) / x²
x² = 225/3.6 x 10^(-3)
x² = 62.5x10x10^(-4) [10^(-3)=10x10^(-4)]
x = √(625 x 10^(-4) )
x = 25 x 10^(-2)
Or, x = 25 cm
How many antinodes are present in harmonic 3
Answer:
a total of four nodes and three antinodes
Explanation:
please tell me if im incorrect i will fix it asap.
How do you think heat gets from a filament to the kernel?
Answer:
Explanation:
It goes thru the fluma
Which facility relies on a no renewable source of energy
Answer:
Coal
Explanation:
What is a molar volume?
Explanation:
The volume occupied by one mole of a substance (especially of a gas) is molar volume.
Hope it will help :)❤
What forces are acting on a heavy box sitting stationary on the floor?
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
A ball with a mass of .012 kg moving at 15.0 m/s collides with a second ball with a mass of 36 g
moving at 5.0 m/s. After the collision, the 12 g ball moves in the same direction at 6.0 m/s. What
is the resulting velocity of the 36 g ball????
Answer:
Solve:
1/2(.5)(36)+1/2(1)(144)=
1/2(.5)(196)+1/2(1)(x^2)
9+72=49+.5x^2
81=49+.5x^2
32=.5x^2
64=x^2
x=8 m/s
Thus, the speed of the second ball after the collision is 8 m/s.
Hope this helps! Good luck!
a 30 kg cart is travelling in a zero friction environment at a constant velocity of 5m/s. It's about to go up a very steep hill. How high will the cart be when the velocity changes to zero? PLEASE HELP
Answer:
1.27551m
Explanation:
This is a simple energy convertion problem. Since there is no friction, and assuming no air drag and other external factors, mechanical energy should be conserved in this system.
Thus, we get:
[tex]KE_{initial} + PE_{initial} = KE_{final} + PE_{final}[/tex]
We also know that the gravitational potential energy is equal to mgh, while the KE can be calculated using [tex]\frac{1}{2}mv^2[/tex]
One thing to note here, is that the final KE will be 0, as there is no velocity at the end. Furthermore, we also can set the initial PE as 0 as we are looking at relative height, and at the start it is at h=0.
[tex]KE_{initial} = PE_{final}[/tex]
Plugging in:
[tex]\frac{1}{2}*30*5^2 = 30*9.8*h[/tex]
Solving for h, we get 1.27551m
7. True or False : All the energy in the universe that exists right now is all there
ever will be
True or false- it is possible for a given substance to absorb one frequency of light and reflect a different frequency.
Answer:
FALSE
Explanation:
To answer this question we must clarify that for a given approach to exist there must be a transition between two atomic levels of the material.
For the emission, the transition between two determined states must also occur, therefore the radiation emitted is equal to that absorbed.
Consequently the statement is False
When do scholars think kites were invented?
A. 2000 AD
B. 1000 BC
C. 12,000 BC
D. Never, there's no such thing as a kite
Answer:
kites where invented 2000 AD
so its A. 2000 AD
srry if it's wrong
Answer:
I guess no. A
Explanation:
approximately 2,800 years ago.
The potential energy of a 45 kg cannon ball is 15000 J. How high was
the cannon ball to have this much potential energy?
Answer:
33.3
Explanation:
Potential energy =
mass × gravitational field strength × height
rearranged =
[tex] \frac{potential \ energy}{mass \: \times gravity} = height[/tex]
[tex] \frac{15000}{45 \times 10} [/tex]
(The earths gravitational field strength will always be 10)
=33.33333 recurring to 1dp its 33.3
Why does Jupiter have greater mass then other planets?
HELP ASAP!
1. Why do you think it is important for people to know when the tides will be high and/or low?
Many reasons. Here are a couple:
1.) Water depth for the draft of incoming ships/vessels so they do not run aground.
2.) Distance between sea level and bottom of structures such as bridges for vessels passing underneath.
Identify the TRUE statements about energy.
A; Energy can transform from electrical energy to heat.
B; Energy can be created and destroyed.
C; Higher potential energy can change into higher kinetic energy.
D; Energy changes are 100% efficient.
Answer:
A, C, D
Explanation:
A, C and D are true.
B is false as energy can neither be created nor destroyed.
A semi-truck as mass of 40 000 kg and is traveling at 80.0 km/h, south. What is
it's momentum? *
A. 210,000 kg m/s
B. 880,000 kg m/s
C. 3,200,000 kg m/s
D. 440,000 kg m/s
What does the following figure illustrate?
A. Diffraction
B. Refraction
C. Resonance
D. Interference
Answer:
the answer would be c sry if it is wrong
Temperature of an object is 250 K. Find its temperature in centigrade.
help me in this assignment
Answer:
T = 526°C
Explanation:
Given the following data;
Temperature in Kelvin = 250K
To convert kelvin to centigrade;
Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F)
Mathematically, it is given by the formula;
250 = 273 + C
Substituting into the equation, we have;
C = 273 + 250
T = 526°C
how do you find the kinetic energy of an object?
Answer:
KE = 1/2 * m * [tex]v^{2}[/tex]
Explanation:
use the formula:
KE = 1/2 * m * [tex]v^{2}[/tex]
KE = kinetic energy in joules (J)
m = mass in kg
v = velocity in m/s
Answer:
KE=1/2mv^2
Explanation:
I hope this helps it's just the formula.
KE=1/2×mass×velocity^2
What is the origin of cold, wet air masses?
A. Over water in tropical zones
B. Over land in polar regions
C. Over land in tropical areas
D. Over water in polar regions
Answer:
b
Explanation:
if it's over land and in polar region it's B
Answer:D
Explanation:
trust me
Define A Gamma Ray .....---_---__☘️
Answer:
gamma ray, or gamma radiation (symbol γ or {\displaystyle \gamma } \gamma ), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation gamma rays based on their relatively strong penetration of matter; in 1900 he had already named two less penetrating types of decay radiation (discovered by Henri Becquerel) alpha rays and beta rays in ascending order of penetrating power.
definition of gametes?
I should limit the number of carbohydrates leat, as often as possible, to avoid gaining weight. * 2 True O False
Answer:
I THINK it's True
Explanation:
Because...
you can get fat...
2. 3000. kg car is moving across level ground at 5.0 m/s when it begins an
acceleration that ends with the car moving at 15.0 m/s. Is work done in this
situation? How do you know?
Answer:
yes
Explanation: Work is done when there is movement. Therefore it was work was being done.
How many calories are produced when 50 ml of water is raised from 22 degrees celsius to 52 degrees celsius?
Help it’s due today
Answer:1500 calorie
Explanation:
Given
volume of water [tex]V=50\ ml[/tex]
Initial temperature [tex]T_i=22^{\circ}C[/tex]
Final temperature [tex]T_f=52^{\circ}C[/tex]
We know,
specific heat of water is [tex]c=1\ calorie/gm-^{\circ}C[/tex]
the density of water is [tex]\rho=1\ gm/ml[/tex]
The heat required to raise the temperature
[tex]\Rightarrow Q=mc\Delta T\\\Rightarrow Q=\rho \cdot V\times c\times \Delta T\\\Rightarrow Q=1\times 50\times 1\times (52-22)\\\Rightarrow Q=1500\ cal.[/tex]
1500 calories is required
What is the name of the process whose main purpose is to use energy released and stored during the Krebs cycle to form ATP? 1. The Krebs cycle 2. Electron transport chain 3. Photosynthesis 4. Glycolysis
Answer:
4. Glycolysis
Explanation:
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.
Hence, the name of the process whose main purpose is to use energy released and stored during the Krebs cycle to form ATP is glycolysis.
Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.
Answer:
the Krebs cycle
What will make two bar magnets repel each
other?
Describe the components of the universe.
3-4 sentences
Answer:
The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
Explanation:
Answer:
Hey mate....
Explanation:
This is ur answer.....
According the NASA's StarChild Website, "The universe is a vast open space which contains all of the matter and energy in existence. The universe contains all of the galaxies, nebulae, stars, and planets. The exact size of the universe is unknown. Scientists believe the universe is still expanding outward.
The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
Hope it helps u,
Mark me brainliest plss......
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You want to create a space station that is 50 meters in radius. If you want it to simulate Earth's gravitation, how fast must it go?
Answer:
w = 0.196 rad / s
Explanation:
To generate an acceleration similar to that of the earth, the station's centripetal acceleration must be equal to the acceleration due to gravity.
a_c = v² / r = w² r
a_c = g
we substitute
g = w² r
w² = g / r
w = [tex]\sqrt { \frac{g}{r} }[/tex]
let's calculate
w = √9.8/50
w = 0.196 rad / s
therefore the station must rotate at that angular velocity so that the acceleration in the outer wall is equal to the ratio of gravity