Need help on this question asap pleasee
Answer:
My aunt died and I am felling down today
a mini rubric's cube has a with of 3cm. if the cube weighs 6grams calculate its density
Answer:
the density is 2
Explanation:
p= m/v
p is density
m is mass
v is volume
6/3 = 2
How to determine the position of the center of mass.
Answer:
The center of mass can be calculated by taking the masses you are trying to find the center of mass between and multiplying them by their positions
How do seatbelts relate to the first law of motion.
Answer: Seatbelts relate to Newton's first law of motion because in the case of a car accident, someone in the car would continue forward until they hit somethng else. A seat belt will help prevent this because it will push back on you (action-reaction force).
Explanation:
How could you increase the sliding friction between the sled and track? How could you decrease it?
Answer:
You could put sheet metal lining the bottom or something similar to that
Explanation:
Explanation:
If the normal force is the weight of objects you are sliding across the floor, adding or subtracting weight will increase or decrease the sliding friction. But also, if you are pulling an object with a rope, pulling at an upward angle will reduce the normal force.What is the relationship between resistance and current.
Answer:
They are inversely proportional with each other. [tex]R[/tex] ∝ [tex]\frac{1}{I}[/tex]
Explanation:
By the equation V=IR, assume V is constant.
Since I and R are on the same side,
if I increase, R decreases, or the vice versa.
What are the units for specific charge?
A. C/kg
B. C*kg
C. kg/C
D. 1/C*kg
Answer:
Option A
Explanation:
Your answer is the first option or "C/kg." C/kg is a ratio for specific charge. C for the charge of the electron, kg for the mass of the electron. To find the specific charge we divide the two, which usually involves scientific notations and simplifying.
Example:
[tex]\frac{C}{kg}[/tex]
[tex]\frac{3.4\times10^3C}{2.7\times10^5kg}[/tex]
Hope this helps.
When a fluid (liquid or gas) is heated. its volume increases in it sinks
True or false
Answer: True
Explanation: When the said fluid ( liquid or gas) is heated the temperture of the molecules are increased, the molecules bump in to each other and plead out which then the volume increases because of the heat.
Let me know if that helps! :)
can u pls help me i
Answer:
I believe it's the Supreme Court issued a decision making segregation on buses illegal
Can the Earth block the Sun;s light from the Moon, or cast a shadow?
(This is a Science question)
Answer:
Sometimes Earth moves between the sun and the moon. When this happens, Earth blocks the sunlight that normally is reflected by the moon. (This sunlight is what causes the moon to shine.) Instead of light hitting the moon's surface, Earth's shadow falls on it.
Explanation:
I Just Know
What kind of electromagnetic waves are used by an FM radio?.
Answer:
electromagnetic radiation
Would a larger balloon float better or worse than a smaller balloon?
(We are doing a project on making a hot air balloon out of tissue paper).
Answer:
The bigger balloon will have a larger area and would experience a greater buoyant force exerted on it which would make it even lighter than a smaller balloon and will have higher payload capacity than a smaller one.
only gorgeous gorgeous humans can answer this.
Answer:
Fall
Explanation:
Archimedes' Principle
How many galaxies do astronomers estimate are in the universe.
Answer:
1 million.
Explanation:
Answer: 100 Billion
Explanation: Scientists believe around 100 Billion Galaxies that exist across the observable universe
What is the efficiency of engine that exhausts 463J of heat in a process of doing 350 J of work?
What would a wave with a low amplitude sound like?.
If you could hear it at all, it would sound very soft.
A 10 Newton effort force is required to lift a 10 kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever? [The fulcrum is placed 0. 5m from the box. ].
Answer:
2.0 N is the answer
Explanation:
Hope this helps ;D
Which transformation will map figure L onto figure L'? (1 point) Two congruent triangles Figure L and Figure L prime are drawn on a coordinate grid. Figure L has vertices at negative 4, 2, neg
a Horizontal translation of 8 units
b Horizontal translation of 6 units
c Reflection across x-axis
d Reflection across y-axis
Answer:
Horizontal translation of six units
Explanation:
In the absence of air resistance and starting from rest ... Select one or more: a. an object would fall quadruple the distance if you double the time b. an object would fall half the distance if you double the time c. a 2 kg object falls twice as fast as a 1 kg object d. an object would fall twice the distance if you double the time e. a 2 kg object falls as fast as a 1 kg object
Answer:
only E is true
Explanation:
A) to find out if it would fall 4x as fast by 2x the time we can look at the formula for free fall:
for free fall the Y = [tex]\frac{1}{2}[/tex]g[tex]t^{2}[/tex] where Y is the distance fallen, g is gravity and t is time
so since the rate at which an object falls is the same (gravity stays the same) it will not fall faster with any alteration
B) An object would fall half the distance if you double the time
here we may need to check with an example:
lets say we fall for 2 seconds in the first and 4 in the second:
Y= 1/2 (9.8) (2)^2 gives 19.6m fallen
Y= 1/2 (9.8) (4)^2 gives 78.4m fallen
from this we can see that doubling the time does not half the distance
C) all objects fall at the same rate no matter their mass so this statement is false
D) from the example above we see again that doubling time does not double the distance
E) this statement is true
Option e is correct. So that a 2 kg object falls as fast as a 1 kg object. Height attained depends upon the time factor.
What is height?The vertical distance between the object's top and bottom is defined as height. It is measured in centimeters, inches, meters, and other units.
The height attained during free fall ;
[tex]\rm H = ut + \frac{1}{2}gt^2 \\\\ u = 0 \\\\ H=\frac{1}{2}gt^2[/tex]
The height attained during free fall is independent of the mass. Due to that, a 2 kg object falls as fast as a 1 kg object.
Hence,option e is correct.
To learn more about the height, refer to the link;
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please answer!
this is for my homework its due soon.
1) wavelength is 2
6m is 3 wavelengths so 6 = 3.. to find for one wavelength divide both sides by 3
6 = 3
2(m) = 1(wavelength)
2) amplitude is half of what they've given
2/2 = 1m
3) f = 1/t
time period = 1.5s for 3 wavelengths
time period for one wavelength is 1.5/3 = 0/5
so f = 1/0.5 = 2 Hz
How does temperature affect the speed with which the solute dissolves?
Answer:
molecules at higher teperature have higher speed & energy.
Explanation:
the higher they are the more it effects
Pls answer this ,today is last day of classes then I got finals soon lol
Answer and Explanation:
The law of conversation of energy states that energy cannot be created or destroyed. The pendulum slows down and stops eventually not because the kinetic energy is destroyed, but it is transferred into sound and heat energy instead because there is air resistance and friction.
Kinetic energy => Gravitational potential energy (Loop but some energy transferring to heat and sound each time)
A centrifuge rotates so that 0. 25 m from the center is traveling at 343 m/s (the speed of sound). How many RPM is this? What is its angular velocity?
Answer:
[13,101 RPM]
[1372 rad/s]
Explanation:
An airplane flies 6.0 km [N] and then 11 km [W]. To return to its starting point, what displacement is needed?
The displacement needed by the airplane to return to its starting point is 12.53 km.
DisplacementFrom the question, we are to determine the displacement
Using the diagram attached, D is displacement
Using the Pythagorean theorem,
D² = 11² + 6²
D² = 121 + 36
D² = 157
D = √157
D = 12.53 km
Hence, the displacement needed by the airplane to return to its starting point is 12.53 km.
Learn more on Displacement here: https://brainly.com/question/13149055
Find attached an illustrative diagram
Carbon dioxide is an example of a molecule where the component atoms of carbon and oxygen are held together by chemical bonds. Which statement correctly describes the reason for these chemical bonds?
A) The structure of atoms increases their atomic energy, which creates the bonds.
B) The combination of chemical energy stored in each atom makes the bonds strong.
C) The nuclei and electrons of the atoms are attracted to each other.
D) The strong nuclear energy bonds the atoms together.
Answer:
C) The nuclei and electrons of the atoms are attracted to each other.
A simple pendulum is used to determine the acceleration due to gravity at the surface of a planet. The pendulum has a length of 2 m and its period is measured to be 2 s. The value of g obtained in this investigation is most nearly:.
Answer:
- pendulum use to determine acceleration
Explanation:
by calculating need to understand first the problem
the length is measure to be 2s
the lenght is also 2
2 obtainer on invistigation the most nearly is 8.
If water is at 500 C, what would
its state of matter be? How do you know?
Answer:
gas
Explanation:
because water become gas when above 100 celcius
Answer:
Gaseous (vapor) state
Explanation:
Because the boiling point of water is 100 C, then anything above that temperature would mean it remains in the vapor state.
which type of light wave has the highest energy? which has the least amount of energy
Answer:
Red has the lowest energy and violet the highest. Beyond red and violet are many other kinds of light our human eyes can't see, much like there are sounds our ears can't hear. On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light.
Explanation:
you're in your room blasting music with door shut, your mom opens your door. Now music is heard through out your home. this is example of__
A. Diffraction
B. Reflection
3. Refraction
Answer:
A
Explanation:
Diffraction, as the waves spread out (specifically spread to the whole house) by passing the door.
A) prove that the electric field of the point charge is radial by comparing your values in column 5 (position angle) and in column 7 (electric field angle). Explain.
Electric field simply means an electric property that is associated with each point in a space when there is a charge present.
What is an electric field?Your information is incomplete. Therefore, an overview of an electric field will be given.
An electric field simply means the physical field that surrounds particles that are electrically charged.
It should be noted that the electric field exerts force on the other charged particles that are in the field by either attracting or repelling them.
In conclusion, the SI unit of an electric field is volts per meter. This is also equivalent to Newton's per coulomb.
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