Answer:
B. there would be a global rise in temperatures
Hence, global warming
Explanation:
hope this helped! :D
Which of the following describes how the current in a circuit can be increased? Select all that apply.
A.
increase the voltage and the resistance
B.
increase the voltage while keeping the resistance constant
C.
decrease the voltage and the resistance
D.
decrease the resistance while keeping the voltage constant
Answer:
B. and D. would be my best guess.
Explanation:
The reason why is because if you lower the resistance, the voltage will be higher, and if you higher the voltage, the resistance would be lower and the voltage would higher.
What is the potential difference if a resistance of 20 ohms produces a current of 10 amperes?
Answer:
200 Volts
Explanation:
V= IR
V = 20 Ohm * 10 A = 200Volt
Potential difference V is 200 volt
Given that;Resistance R = 20 ohms
Current I = 10 Amp.
Find:Potential difference V
Computation:Potential difference V = IR
Potential difference V = 20(10)
Potential difference V = 200 volt
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how do electric and magnetic fields interact to create electromagnets?
Answer:
8548458
Explanation:
95895
Which term is defined as the force applied to the object divided by the mass of the object?
speed
velocity
mass
acceleration
Answer:
acceleration
Explanation:
From the question: "FORCE... divided by the MASS..." is translated to a math equation as "F / m", where "F" is the force and "m" is the mass.
Now, the second Newton's law says "F = m . a ", where a is acceleration.
If you move m to the left side, clearly you have "F / m", and "a" is alone to the right. Math equation:
a = F / m
acceleration = force / mass
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Match the property with the correct type of metal.
Soft
(Alkali Metals)
(Alkaline Earth Metals)
Extremely reactive
1 valence electron
2 valence electrons
Harder, more dense
Answer: Alkali metals
Soft, Extremely reactive, 1 valence electron
Alkaline earth metals
Harder, more dense, 2 valence electrons
Answer:Alkali metals
Soft, Extremely reactive, 1 valence electron
Alkaline earth metals
Harder, more dense, 2 valence electrons
Explanation:
THE PERSON ABOVE ME IS CORRECT IM JUST PUTTING THIS HERE SO YOU KNOW I GOT 100% BECAUSE OF THAT PERSON THANK YOU
What happens when an object absorbs all the light striking it?
It appears blue.
It appears red.
It appears black.
It appears white.
Answer:
it appears black
Explanation:
that's my best guess
A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw
based on this description?
The electric field points to the left because the force on a negative charge is opposite to the direction of the field,
The electric field points to the right because the force on a negative charge is in the same direction as the field,
No conclusion can be drawn because the sign of the charge creating the field is unknown,
No conclusion can be drawn because the amount of charge on the test charge is unknown.
Answer:a
Explanation:
Answer: ( A )
Explanation: the answer is a
As a liquid the refrigerant transfers thermal energy to the
outside air
TRUE
FALSE
Answer:
True
Explanation:
As a liquid, the refrigerant absorbs thermal energy from the cool air inside the refrigerator and changes to a gas. As a gas, it transfers thermal energy to the warm air outside the refrigerator and changes back to a liquid.
how does force do positive work on an object?
Answer:
It can do work on an object by moving it or changing it.
Explanation:
Brainliest?
Answer:
If you push on an object, thats positive work but if you pull on the object, thats negative work
Explanation:
Someone HELPPPPPPPPP
MARKING BRAINLIST JUST CHECK WORK
(15 points)
Answer: I'm pretty sure you're right. Believe in yourself!
Explanation:
This graph provides data on the amount of water needed to grow four different crops, each used to produce ethanol, a fuel. For each crop, the data shows how many liters of water are needed to produce one liter of ethanol fuel. Which of the following would require using the most water? *
Producing 100 L of ethanol from sugar cane
Producing 200 L of ethanol from sugar beet
Producing 300 L of ethanol from potatoes
Producing 400 L of ethanol from corn
Answer:
Producing 300 L of ethanol from potatoes
Explanation:
From the diagram, one liter of ethanol production from sugar cane requires 2000 liters of water. Hence, in order to produce 100 L of ethanol from sugar cane, 2000 x 100 = 200,000 L of water.
1000 liters of water is needed to produce 1 liter of ethanol from sugar beet. Hence, 200 x 1000 = 200,000 L of water will be needed to produce 200 liters of ethanol.
1000 liters of water is also required to produce 1 liter of ethanol from potatoes, hence, 300 x 1000 = 300,000 L of water would be required to produce 300 L of ethanol from the same material
About 500 liters of water is required to produce 1 liter of ethanol from corn, hence, 400 x 500 = 200,000 L of water would be needed to produce 400 L of ethanol from corn.
In conclusion, producing 300 L of ethanol from potatoes would require using the most water among all the options.
Work is the product of force and an object's
A. time
B. momentum
C. displacement
D. space
Answer:
C. displacement
Explanation:
Work is the product of force and an object's displacement. The correct answer is displacement and the correct option is option (C).
The result of a force and an object's displacement is called work. Work (W) is represented mathematically by the equation:
W = F × d
In the International System of Units (SI), the unit of work is the joule (J). When a force is applied to an object and it moves over a predetermined distance in the force's direction, work has been done.
No work is done if the item stays still or if the force and displacement are parallel to one another.
Therefore, Work is the product of force and an object's displacement and the correct option is option (C).
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what is kinetic energy
Answer:
energy which a body possesses by being in motion.
Explanation:
Which best describes a concave lens?
It is thinnest at its center and thickest at its outer edges.
It is curved outward at the center and thinnest at its outer edges.
It is curved inward in the center and thickest at its outer edge.
Answer:
Explanation:
Concave lens also called as diverging lens i.e. it diverges ray of light coming towards it.
Concave lens is thicker at the edges and thinner at the center.
Concave lens formed the virtual image of the object i.e. it cannot be trace on screen. This lens is used to treat the nearsightedness or myopia in which a person is unable to see the far object clearly.
Answer:
It is thinnest at its center and thickest at its outer edges.
Explanation:
graddy
9) Who was right about the atom, Bohr or Schrodinger?
Answer: Schrodinger
Explanation: because Schrodinger used mathematical equations to describe the likelihood of finding an electron in a certain position. This atomic model is known as the quantum mechanical model of the atom.
Schrodinger because Bohr's model was not completely correct, but it has many features that are approximately correct and it is sufficient for much of our discussion.
Who is this and why is she in my album??? lol help
Please answer quickly I would greatly appreciate it
Answer:
1. outer planets
2. Gas giants
3. helium
4.Galileo Galilei
5. Saturn
6. Pluto
7. Pluto
when an electric current runs through a wire a magnetic field is included where?
In a nuclear reaction, which of the following must be conserved?
A. the number of neutrons
B. the count of nucleons
C. charge
D. the number of electrons
Answer:
c
Explanation:
Answer:
c
Explanation:
50W of power is generated using 100J of work to move a box onto a shelf. How long did it take to move the box from the floor to the shelf?
Answer: time t = 2 seconds
Explanation:
Given that
Power P = 50W
Energy E = 100J
How long did it take to move the box from the floor to the shelf ? This implies time taken.
Power is defined as the rate at which work is done. I.e
P = W.D/t
Where work done = energy
50 = 100/t
Make t the subject of formula
t = 100/50
t = 2 second
Each antibody can recognize how many types of invaders of the body? A. 1 B. 10 C. 100 D. 1,000
Answer: D. 1,000
Explanation:
The antibodies are special proteins which can detect the foreign antigens in the body of the host and fight against these antigens. This way the antibodies prevent the infection in the body.
There are five different classes of antibodies in the human body these are IgA, IgG, IgM, IgE and IgD. Each antibody can recognize more than 1,000 antigens of foreign pathogens.
In Charles Law, what is the measurement for temperature?
Answer:
The physical principle known as Charles' law states that the volume of a gas equals a constant value multiplied by its temperature as measured on the Kelvin scale (zero Kelvin corresponds to -273.15 degrees Celsius).
When tectonic plates are strained to the point that they can no longer bend, which of the following is most likely to occur?
A. Earthquake
B. Volcanic Eruption
C. Convection Current
D. Ocean Basin Formation
When tectonic plates are strained to the point that they can no longer bend, (A) earthquake most likely to occur.
What is earthquake?An earthquake is the sudden release of energy from the earth's crust that causes the earth's surface to shake. Seismic waves, also called S waves, are consequently produced. The type and severity of an earthquake are based on the local seismic activity.
What is Volcanic Eruption?A volcanic eruption occurs when elements of the Earth, such as hot lava, rocks, and dust, erupt from a volcano in the form of an explosion. The upper portion of the volcano or one of the side branches may explode. If massive volumes of rock and volcanic ash begin to erupt, it might be dangerous. Occasionally, numerous lives are lost in these explosions.
When tectonic plates are strained to the point that they can no longer bend, in such scenario, earthquake is most likely to occur.
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why is it dangerous to connect a battery to itself. what is the term used to describe that
What does the term “retroperitoneal” mean in the terms of the location of the kidneys ?
Answer:
"Retroperitoneal" refers to the back of the peritoneum, the membrane that lines the anatomical space in the abdominal cavity. Kidney stones may cause pain to the organs within the retroperitoneal space. A diagram of the aorta, a retroperitoneal structure.
Explanation:
Which is a true statement?
A.
Valence electrons play a key role in chemical reactions.
B.
The properties of elements in a group are identical.
C.
Hydrogen contains multiple valence electrons.
Answer:
C
Explanation:
Question attached i need answers quick
A steady increase in global temperature has been recorded between 1900 and today. Before concluding that this rise in temperature is the result of the increased burning of fossil fuels since that sametime, which of the following questions would have to be answered? *
A. What is the CO2 content in one metric ton of fossil fuels?
B. Which gases are released when burning fossil fuels?
C. What, if any, temperature rise was occurring prior to 1900?
D. None of these
Answer:
C is correct
Explanation:
3. If you increase the distance between
two objects, the gravitational force
between the two objects
A)increases
B)decreases
Answer:
B
Explanation:
A boy throws a ball up into the air with a speed of 12.3 m/s. The ball has a
mass of 0.25 kg. How much gravitational potential energy will the ball have at
the top of its flight? (Assume there is no air resistance.)
A. 13,5 J
B. 20.23
C. 18.9 J
D. 12.13
