Answer:
c. Waxing crescent
- I hope this helps have a great night
An object is located 360 millimeters from a converging lens. The image formed is 150 millimeters high, at a distance of 90 millimeters from the lens. What’s the height of the object?
The height of the object : 600 mm
Further explanationGiven
d object=360 mm(object distance)
d image=90 mm(image distance)
Required
h object
Solution
focal length = f :
[tex]\tt \dfrac{1}{f}=\dfrac{1}{d_o}+\dfrac{1}{d_i}\\\\\dfrac{1}{f}=\dfrac{1}{360}+\dfrac{1}{90}\rightarrow f=72~mm[/tex]
The magnification :
[tex]\tt M=\dfrac{d_i}{d_o}=\dfrac{90}{360}=0.25[/tex]
[tex]\tt M=\dfrac{h_i}{h_o}\\\\0.25=\dfrac{150}{h_o}\rightarrow h_o=600~mm[/tex]
When force are ____ the object does not move
when forces are balanced the object does not move.
Explanation:
if you and your friend push both sides of the chair at the same time with the same amount of strength the chair wouldn't move.
what is the value of log1.004?
Answer:
−0.60205999
Explanation:
Differentiate between acids and bases on the basis of their pH values.
Answer:
acid; there ph value is mostly 7
base: there ph value can be more than 7 or less than 7
Answer:
The more towards 0 a pH value is, the increasingly acidic. Conversely, the more towards 14 a pH value is, the increasingly alkaline. Some examples of bases are lye, ammonia, and seawater. Some examples of acids are vinegar, lemon juice, and battery acid. To determine the pH of a liquid, you can use pH strips. Depending on the color (the redder the more acidic, the bluer the more alkaline), you can determine the pH of whatever you are trying to measure.
Which of the following may indicate that a chemical reaction has occurred?
a. release of energy as light
b. a color change
C. gas bubble formation
d. All of the above
Answer:
D, all of the above
Explanation:
Based on the reading, what can you infer about
aspirin's ester group?
It provides aspirin's pain-killing ability.
It makes the compound more digestible.
It reduces fevers.
Answer:
it makes the compound more digestable
Explanation:
Answer:
B.it makes the compound more digestible
Explanation:
edg 2020 just got it right
brainliest please?
What is the charge of a beta particle?
Answer:
Beta particles have a charge of minus 1.
Explanation:
Hope this helps!
Answer:
MARK AS BRAINLIEST ANSWER
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Explanation:
Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light)
HOPE IT HELPS YOU
A science teacher asked students to calculate the density of a toy block. The mass of the block was 110 grams and the volume of the block was 8 cubic centimeters. What was the density of the toy block in cubic centimeters?
Answer:
13.75
Explanation:
Density is equal to mass divided by volume. 110/8 = 13.75
What is the bond order for a single covalent bond?
Answer:
We typically represent covalent bonds with a dash ( - ) between the atoms. This indicates a single bond. Ex: Cl - Cl
Single bond, double bond, triple bond.
Explanation:
We call it a single covalent bond because the atoms are sharing a single pair of electrons.
Answer: If you have this question: The bond order for a single covalent bond is ____.
Then the answer is oneExplanation:
are particles in gas close together
Answer:
Solid particles are close together not gas particles
A loop of wire turns between two permanent magnets in a generator. What is
the effect of this motion?
OA. A current of electricity flows from one magnet to the other.
OB. Current stops flowing through the loop of wire.
OC. Mechanical energy transforms into electrical energy.
O
D. The permanent magnets quickly reverse poles, reversing the
current's direction.
Answer:
a current flows through the loop of wire.
Explanation: my answers were worded diffrently
A loop of wire turns between two permanent magnets in a generator and the effect of this motion is conversion of Mechanical energy transforms into electrical energy.
What is generator?Generator is a device which is used to convert mechanical energy to electrical energy.
In generator between the two poles of magnet a loop of wire rotate by the mechanical force which produces magnetic field which in turn convert into the electric field.
Hence, option (c) is correct.
To learn more about generator, visit the below link:
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does anyone know the answer to this riddle???
Answer:
babe where are u???????!
Explanation:
babe plz text me im lowkey freaking out rn
Is honors high school chemistry hard? Is it hard mathematically? please answer ASAP i have to put in my courses for next year.
Explanation:
yes its hard if you don't pay attention.
Yes, the math is harder but chemistry is not it's really fun the math does get harder tho.
How would life be different if there were 10 hours in a day
Answer:
If there was only 10 hours in a day, including the night time it would be complexly new environment. Say you are up for 7 hours and sleep 3, in those 7 hours you would go to work for probably 4 hours, come home and do stuff for 3 then go to bed and do it all over again.
What is this called? it might be sideways but it show look like a Y
Answer:
I'm thinking it might be Element 39: Yttrium, as this is Chemistry.
Explanation:
Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory?
higher temperature, more kinetic energy, more space between particles, higher volume
higher temperature, less kinetic energy, less space between particles, higher volume
higher temperature, more kinetic energy, less space between particles, lower volume
higher temperature, less kinetic energy, more space between particles, lower volume
Answer:
higher temperature, more kinetic energy, more space between particles, higher volume
This is true because increase in temperature kinetic energy increase so molecules move apart and increase volume
Explanation:
A small windmill is to be built at a science competition. A large floor fan is used to power each windmill The task
is to lift a bucket filled with the most number of pennies possible from a height of one meter in one minute.
Which change in decision would most likely increase the weight that the windmill could lift?
A)
Make the fan blades smaller.
B)
Make the arms of the windmill longer,
C)
Make the arms of the windmill shorter
D)
Make the fan blades out of a lighter material.
Answer:
D
Explanation:
I'm doing USA test prep and I got it right
Answer:
Explanation:
It is D
Make the fan blades out of a lighter material.
SOMEONE HELP ME PLEASE!!! ILL GIVE BRAINLY
Physical properties behave identically for all matter under the same conditions.
Physical properties cause atoms and molecules to change structure when substances are mixed.
Physical properties can be observed without changing the identity of a substance.
Physical properties are observed by seeing how a substance reacts with other substances.
Answer:
the answer is c
Explanation:
My reasoning is that its most likely
Which substances have AHp = 0 kJ/mol by definition?
Answer:
4
Explanation:
i think
If a 50kg car is pulling a 30kg car, how much force would be required to accelerate the cars at 2m/s/s?
Answer:
160N
Explanation:
The force required to accelerate the two cars can be calculated thus:
F = m × a
Where;
F = force (Newton)
m = mass (kg)
a = acceleration (m/s²)
However, according to the question, a 50kg car is pulling a 30kg car, which means that the mass of the two cars is 50kg + 30kg = 80kg.
a = 2m/s²
F = ma
F = 80 × 2
F = 160N
Explain the bond between Mg2C12 and also what type of bond will it be ionic or covalent?
Displacement can be added to get the total
a) velocity
b) distance
c) speed
d) acceleration
need answers for 1-15
I need these before 12:30 am please
Answer:
1.b
2.c
3.a
4.a
5.d
6.false
Help needed: Which of the following is the correct name for N2S5?
A. Dinitrogen sulfide
B. Dinitride pentasulfur
C. Dinitrogen pentasulfide
D. Nitrogen sulfide
Answer:
dinitrogen pentasulfide
Explanation:
The correct name for the compound N₂S₅ is Dinitrogen pentasulfide and the correct option is option C.
Naming of compounds refers to the systematic process of assigning names to chemical compounds based on their composition and structure. It involves following certain rules and conventions to generate appropriate names that accurately represent the chemical formula and characteristics of the compound.
In inorganic chemistry, naming compounds often involves identifying the elements present and specifying their respective oxidation states or charges. Various naming conventions, such as the Stock system and the common system, are used depending on the type of compound and the specific elements involved.
Thus, the ideal selection is option C.
Learn more about Naming of compounds, here:
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what makes one of your cells you ?
The Guarantee Clause gives the legislature the power to make all necessary and proper laws.
Answer:
True
Explanation:
Answer:
True ;)
Explanation:
help meeeeeeeeeeeee its impossibleeeeee
Answer:
Nice! If only....
Explanation:
Answer:
omg lol what even is this
If 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L, the concentration of the resulting solution is A0.025 M B 0.050 M C 0.10 M D 0.50 M E 1.0 M M
Answer: The concentration of the resulting solution is 0.025 M
Explanation:
According to the dilution law,
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = molarity of concentrated [tex]NaOH[/tex] solution = 1.0 M
[tex]V_1[/tex] = volume of concentrated [tex]NaOH[/tex] solution = 50 ml
[tex]M_2[/tex] = molarity of diluted [tex]NaOH[/tex] solution = ?
[tex]V_2[/tex] = volume of diluted [tex]NaOH[/tex] solution = 2.0 L = 2000 ml (1L=1000ml)
Putting in the values we get:
[tex]1.0\times 50=M_2\times 2000[/tex]
[tex]M_2=0.025M[/tex]
Therefore, concentration of the resulting solution is 0.025 M
The concentration of the resulting solution if 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L is 0.025M
HOW TO CALCULATE FINAL CONCENTRATION:
The concentration of a solution can be calculated by using the following formula:C1V1 = C2V2
Where;
C1 = initial concentration (M)C2 = final concentration (M)V1 = initial volume (L)V2 = final volume (L)According to this question;
C1 = 1.0MV1 = 50mLC2 = ?V2 = 2000mL = 2L1 × 50 = C2 × 200050 = 2000C2C2 = 50 ÷ 2000C2 = 0.025MTherefore, the concentration of the resulting solution if 50. mL of 1.0 M NaOH is diluted with distilled water to a volume of 2.0 L is 0.025M.Learn more at: https://brainly.com/question/17329736?referrer=searchResults
Do I use molar mass when the problem gives me grams? (Yes or No), Right answer gets brainliest.
(Stoichiometry Review)
Answer:
yes
Explanation:
yes because the molar mass is an intensive property of the substance, that does not depend on the size of the sample. In the International System of Units (SI), the base unit of molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.
Answer:
Yes, if your calculating from grams to moles.
which of the following compressed air?
a)car tyres be)Aerosol cans c)Air guns d)all of these
Answer:
option A.car tyres be
Explanation: