Answer:
P = 0.0861 W = 86.1 mW
Explanation:
The electrical power in a resistor is defined as the product of the current passing through that resistor and the voltage across that resistor. Therefore, the formula can be written as follows:
[tex]P = VI[/tex]
where,
P = Power in Resistor X = ?
V = Voltage across resistor X = 2.1 V
I = Current passing through resistor X = 0.041 A
Therefore,
[tex]P = (2.1\ V)(0.041\ A)[/tex]
P = 0.0861 W = 86.1 mW
a
400 12
M
b
290 12
с
The question below refers to the circuit shown in the image
--
12.0 y
If the voltage across the 400 resistor is 7 V, what is the voltage across the 290 Q resistor?
O 5V
O 7V
O 9V
O 12 V
1
2
3
4
5
Answer:
i would think c
Explanation:
The mass of an object is 84 kg. Find its weight on the Earth and the Moon.
Answer:
We would take the mass given, 80 kg, and multiply it times the acceleration of Earth's downward pull on that mass, 9.8 m/s/s. So the weight on Earth is 784 newtons. So the weight of the same 80 kg mass on the moon is 133.28 N.
hi
mass is express in Newtons.
On Earth gravity is 9.807 so wieght would be : 9.807 * 84= 823.79
On the Moon garvity is 1.62 so weight would be : 84 *1.62 = 136.08
A student holds an ice cube in her hand. Which of the following best describes the movement of heat that will happen?
Answer:
The ice will melt and her hand will get cold
Explanation:
The first published controlled experiment was designed to
A.
disprove bacteria appearing spontaneously from broth
B.
prove that bacteria arise spontaneously from broth
C.
disprove maggots spontaneously arising from rotting meat
D.
disprove cell theory
A bucket of water is pushed from left to
right with increasing speed across a horizontal
surface. Consider the pressure at two points
lat the same level in the water.
Answer:
It is higher at the point on the left
Explanation:
a bed that has an area of 3.75 m2 and weighs 1,025N, what pressure would the bed exert on the floor?
Answer:
0.03964
Explanation:
Let us calculate the pressure exerted on the bottom by the weight of the fluid. That pressure is the weight of the fluid mg divided by the area A supporting it (the area of the bottom of the container): P=mgA P = mg A.
Do you think using a homework machine could be considered cheating? Why or why not?
a balloon rubbed against denim gains a charge of -8.0 x 10^-6 c. What is the electric force between the balloon and the denim, which now has a charge of +8.0 × 10^-6 C, when the two are separated by a distance of 0.05 m?
Answer:
230.4 N
Explanation:
Applying,
F = kqq'/r²..................... Equation 1
Where F = Electric force, k = Coulomb's constant, q = charge in the ballon, q' = charge in the denium, r = distance between the charges.
From the question,
Given: q = -8.0×10⁻⁶ C, q' = +8.0×10⁻⁶ C, r = 0.05 m
Constant: k = 9×10⁹ Nm²/C²
Substitute these values into equation 1
F = (9×10⁹×8.0×10⁻⁶×8.0×10⁻⁶ )/0.05²
F = (576×10⁻³)/0.0025
F = 230.4 N.
What units are used to measure mass and weight?
O Mass and weight are measured in kilograms. O Mass and weight are measured in newtons. Mass is measured in kilograms, and weight is measured in newtons.
O Mass is measured in newtons, and weight is measured in kilograms.
Answer:
mass is measured in kilograms and weight is measured in newtons
Explanation:
Fast food meals are typically high in all except 1 fat 2 calories 3 sodium 4 fiber
Answer: they are high in all except fiber
A 1,100kg car is going at 22 m/s. What force is needed to stop it in 20
seconds?
A 1,100 kg car is going at 22 m/s. Force is needed to stop it in 20
seconds is 1210 N.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Using equation of motion,
v = u + at
0 = 22 + a.20
a = 1.1 m/sec²
force = mass.acceleration
force = 1100.(1.1)
force = 1210 N.
A 1,100 kg car is going at 22 m/s. Force is needed to stop it in 20
seconds is 1210 N.
To learn more about force refer to the link:
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the energy transfer that takes place by direct contact is called ____
Answer:
Conduction
Explanation:
The transfer of energy through matter by direct contact of particles is called. Conduction.
Answered by the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!
HOPE THIS HELPED!!!
Which of the following elements is commonly found at the core of an electromagnet?
Lead
Cobalt
Iron
which of the following is a freshwater biome? A.wetland B.estuary C.ocean D.coral reef
Answer:
Wetland
Explanation:
Have a good day!
I’m offering 15 points for this 1 multiple choice question. The answer is not D. Pls answer, though I think I know the the answer, but I just want to make sure.
Answer:
I wanna say C
Explanation:
because A would be getting it nowhere and B would just take more time but when you use C it would be the greatest force.
A 5kg book is slid across the floor with an initial velocity of 3m/s. It slows and stops due to the friction with the floor. How man joules of work did friction do?
Answer:
SUP DAD i love cookies
Explanation:
yuh
An unbalanced force is at work when
A.
a book sits on a shelf.
B.
a piece of paper is on the floor.
C.
a model rocket takes off.
D.
a glass sits on a table.
Can some one please help me
Answer:
its "up, then down, then up"
Explanation:
Some people say you can get HIV from insect bites. True or false? Why?
The weight of a luggage is 69.3 N on the moon. Find its weight on the Earth.
Answer:
Explanation:
weight on moon = 1/6* weight on earth
69.3=1/6*weight on earth
weight on earth = 69.3*6
weight on earth = 415.8 N
Which of the following statements is true with
regards to Blackbody radiation?
a)
b)
c)
A blackbody emits more energy at longer
wavelengths as it heats up
A blackbody emits energy at all wavelengths
The shape of the blackbody spectrum
depends on what the source is made of
All of the above
None of the above
00)
e)
Which of the following refers to the concentration of a substance?
A.the maximum amount of a solute that can be dissolved in a solvent at a given temperature
B.the minimum volume of solvent dissolved per liter of solution at a given pressure
C.the grams of solute dissolved per 100 g of solvent
D.the size of the particles that make up a substance
The statement which refers to the concentration of a substance is the maximum amount of a solute that can be dissolved in a solvent at a given temperature. Thus, the correct option for this question is A.
What is a Substance?A substance may be defined as a type of chemical element and its compounds in the natural state or the result of a manufacturing process. In a manufacturing process, a chemical reaction is usually required in order to form a substance.
The concentration of a substance is the quantity of solute present in a given quantity of solution. Concentrations are usually expressed in terms of molarity, defined as the number of moles of solute in 1 L of solution.
Therefore, the maximum amount of a solute that can be dissolved in a solvent at a given temperature is a statement that refers to the concentration of a substance. Thus, the correct option for this question is A.
To learn more about Substances, refer to the link:
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The picture below shows a wheelbarrow. Using a wheelbarrow can make it easier to lift a heavy object by
A. changing the direction of the input force.
B. reducing the amount of input force needed to lift the object.
C. decreasing the distance over which the input force is applied.
D. reducing the weight of the object.
Answer:
B IS CORRECT
Explanation:
Which phrase best describes what the graph for
average low temperatures would look like?
rk
O It would run parallel to and below the high
temperature graph.
O It would be a flat line that crosses the high
temperature graph.
O It would be the opposite of the high temperature
graph.
It would be a flat line below the high temperature
graph.
Answer:
i dont know sir
Explanation:
definition of mass number
Answer:
The total number of protons and neutrons in a nucleus.
Explanation:
I memorized it.
Answer:
Mass number of an atom is defined as the sum of the number of protons and number of neutrons.
NEPTUNE
•Number of days to orbit the sun:
•Distance around the sun:
Answer:
1. 165 years
2. 2.781 billion mi
Explanation:
A light bulb has a power output of 80 W and it has been left on for 90 seconds. How much work was done?
7200 joules of heat and light energy was dissipated into the air. But no work was done ... no force moved through no distance.
A wave is moving between two mediums, as shown in the diagram below. The
wave is slowing down and changing directions. What wave property is
illustrated?
A. Refraction
B. Resonance
C. Diffraction
D. Reflection
Answer:
Uhm i think its a
Explanation:
srry if i get it wrong ._. my bad
Answer:
the correct answer is A
Help pweaseeee ill give u a brainlest
Answer:
Mass of the larger object
Stress is __________.
A.
positive or negative, depending on circumstances
B.
a body's automatic physical response
C.
a negative reaction to outside influences
D.
A and B only
Answer:
(A)
Explanation:
Depending on the circumstances, there are such things called good stress and bad stress.