Questions LLC
Login
or
Sign Up
Ask a New Question
Categories
science
Page 3
Questions
A marble at rest is dropped from the top of a building. Find the marble’s velocity after it has fallen for 3 s.
Ignore air
2 answers
asked by
Charlies Timbs
702 views
A man walk 3km East and 4km North what is his resultant displacement? Suppose he walks 3km and 4km 60 degree North of East. What
2 answers
asked by
Anonymous
800 views
What is the momentum of a 10 kg mass at rest.
1 answer
asked by
luhit
395 views
three equal charges 2.0×10^-6 each ae held
1 answer
asked by
amit anand
318 views
Determine the amount of NaoH dissolved in 250ml of the solution by titrating it against N/10 H2so4 solution
1 answer
asked by
Rahul Kumar
400 views
Why is refraction so important in eyeglasses.
1 answer
asked by
soji
314 views
The greatest and least resultant of two forces acting at a point is 29 kgwt and 5 kgwt respectively.If each force is increased
2 answers
asked by
Ankit
539 views
The greatest and least resultant of two forces acting at a point is 29 kgwt and 5 kgwt respectively.If each force is increased
4 answers
asked by
Ankit
989 views
Of the following, which is NOT an adaptation made by reptiles to life on land?
thick, dry, water-proof skin exchange oxygen and
3 answers
asked by
SwimmerGirl
841 views
what does native americas not use tortora reed for
1 answer
asked by
babygirl
280 views
the_____ biome is characterized by its lack of trees warm tempeture and moderate rainfall
nitrogen fixing am i right
7 answers
asked by
babygirl
1,184 views
following balanced chemical
reaction: Ca2+ (aq)+ CO3 2-- (aq) ⇄CaCO3(S) The amount of dissolved CaCO3 can be increased on
2 answers
asked by
Menna
976 views
What is the main function of glycoxisomes (is organell) ???
1 answer
asked by
sisay
282 views
Describe how you would separate a mixture of sand, iron fillings and granulated sugar
3 answers
asked by
Anonymous
752 views
What is mole?
1 answer
asked by
Amritpal
383 views
20ml solution containing 0.2g of an impure sample of h2o2 reacts with 0.316g of kmno4 in the presence of h2so4. Find the purity
2 answers
asked by
Ram naresh panday
1,080 views
for a particle executing simple harmonic motion the displacement is 8 cm at the instant the velocity is 6cm\sec and the
1 answer
asked by
tisha
411 views
Which of the following statement is correct
a. There are 7 principal electron energy levels. b.The second principal energy level
1 answer
asked by
Bhuwneshwari Bawa
476 views
Q.4a) an object is tied to a rope and moves in a horizontal circle. The maximum tension in the rope is 100N. The object has a
2 answers
asked by
Larry
530 views
A bullet having a mass of 10g and moving with a speed of 1.5m/s penetrates a thick wooden plank of mass 90g. The plank was
10 answers
asked by
snehal raja acharya
1,715 views
Pure PCL5 is introduced into an evacuated chamber and comes to equilibrium at 247C and 2 atm. The equilibrium gaseous mixture
4 answers
asked by
how
2,460 views
what is force
3 answers
asked by
bah
438 views
Can you explain how matter and energy are continuously transferred between organisms and their physical environment?
All help
2 answers
asked by
daphne
513 views
which part of a plant cell is made of cellulose
2 answers
asked by
James
760 views
How should I prepare for a field study and what should I do if there's an accident?
I just need help answering the last part
6 answers
asked by
avery
2,435 views
the best explanation of why the Moon appears to change shape throughout the month is
•from Earth's perspective, we see varying
2 answers
asked by
mary
881 views
the position of a particle moving along x-axis is given=5t^2-10t the distance travelled by particle is
2 answers
asked by
noyf
967 views
Find by drawing the resultant of two vectors 3 unit and 4 unit inclined to each other at 30 degree, 4 degree and 90 degrees.
4 answers
asked by
omoye
1,137 views
100,000 light years refers to...
• the size of the spirals with or galaxy (Milky Way) • an approximate measure of the
2 answers
asked by
Taylor P.
563 views
Why are the oldest rocks on earth on continental crusts?
1 answer
asked by
jen
407 views
Why are the coldest temperatures at the 50 km height from the surface of the Earth, occur generally at tropical tropopause?
1 answer
asked by
Anonymous
466 views
If ozone mixing ratios are 0.24 ppmv and ROG mixing ratios are 1.7 ppmC, what is the best an most effective regulatory method of
1 answer
asked by
Anonymous
598 views
The ionization energies for the removal of the first electrons in Silicon 780,Phosphorous 1060,Sulphur 1005,Chlorine 1225.
1 answer
asked by
Chidinma
444 views
The product of frequency and wavelength of a sound wave is equal to its
3 answers
asked by
Anonymous
385 views
Question: Why are "apparently" small changes in pH so important in Biology?
Answer: pH levels are each a 10-fold change so a
2 answers
asked by
lizzie
1,201 views
A sample weighing 1.25 mg containing a certain compound M (FW 292.16 g/mol) was dissolved in
solvent in a 5.00 mL volumetric
3 answers
asked by
Ibrahim
927 views
The magnitude of the force that a baseball bat exerts on a ball is 50. newtons. What is the magnitude of the force that the ball
4 answers
asked by
Anonymous
2,406 views
C=5/9(F-32)
The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in
2 answers
asked by
Mary
929 views
Calculate the number of moles in 0,25grammes of sodium carbonate
4 answers
asked by
delmar
599 views
Electrons that have the highest energy are _____.
A. nuclear electrons B. part of the nucleus C. closest to the nucleus D.
7 answers
asked by
I would love some help!
1,473 views
is the world flat or round?
12 answers
asked by
Romwe
332 views
How do the Sun, Earth, and Moon depend on each other?
5 answers
asked by
emma
1,405 views
which of the following statements accurately describes the development of the geologic time scale?
7 answers
asked by
country girl
1,890 views
how does subduction change the ocean floor
2 answers
asked by
maddzz
474 views
In which way does quartz break?
A. cleavage B. fracture **** C. luster D. flat planes
6 answers
asked by
country girl
3,075 views
over millions of years, of time and islands vegetation shifts. the seed producing plants that dominated the early origins of the
6 answers
asked by
clout gang
1,183 views
1. all of the life functions are carried out by cells in a living organisms in order to
A. Perform Synthesis B. Maintain
3 answers
asked by
karen
780 views
sally and lisa have identical compact cars sally drives on the freeway with a great speed than lisa. which car has more kinetic
2 answers
asked by
michelle
715 views
Calculate the density of the wood?
1 answer
asked by
moses
339 views
I need help with a paper about volcanos can someone help (I looked it up cant find much)
Thanks: A+
1 answer
asked by
A+
374 views
#1
which electromagnetic waves have the longest wavelengths a:radio** b:infrared c:gamma B:ultraviolet #2 what process describes
7 answers
asked by
help me please
1,817 views
How can we detect dark matter?
a. with a telescope/ b. by its effects on other objects c. by electromagnetic radiation it
1 answer
asked by
girl
350 views
A 4m ladder weighing 25 kg with its upper end against a smooth wall and lower end on rough ground.what should be the minimum
1 answer
asked by
Manoswetha
887 views
Isn't part of my homework, but I'm curious-
Does water evaporate faster from a body of water with a bigger surface area?
1 answer
asked by
Anonymous
404 views
1. Jane, looking for Tarzan, is running at top speed (4.9m/s) and grabs a vine hanging vertically from a tall tree in the
2 answers
asked by
Anonymous
929 views
water turns into _____ _____ _____ _____ is a gas.
1 answer
asked by
Anonymous
388 views
Does sound go through a wooden block?
3 answers
asked by
lucy
362 views
In astronomy the term perihelion refers to the point in the orbit of an asteroid, comet, or planet when it is closest to the
2 answers
asked by
Anonymous
890 views
What is the difference between Light and Sound and what are the same. write sentences
1 answer
asked by
rosalin
434 views
A water bed is 2.0m square end 30.0cm depth what is its weight
1 answer
asked by
chela
395 views
An empty beaker weighs 20g and when filled with a liquid weighs 65g. The volume of the liquid is found to be 25cm³. Determine
3 answers
asked by
Iris
791 views
A 25 ml solution of 0.5 M NaOH is titrated until neutralized into a 50 ml sample of HCl
2 answers
asked by
Ayomide
761 views
What volume of 0.1M Of sulphuric acid is needed to neutralize 100cm³ of a solution of sodium carbonate of mass concentration
2 answers
asked by
Denis
491 views
Which of the following questions is most testable through scientific experimentation?
1. Which gelatin takes longer to set:
6 answers
asked by
DanielleT
2,797 views
which units would you use to measure the volume of a small cardboard box
5 answers
asked by
LALA
1,716 views
What is a factor that limits a technological design?
A. a prototype B. a trade-off C. a constraint D. a patent
5 answers
asked by
im not lieing
1,021 views
Michael thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and
2 answers
asked by
natalie
561 views
Describe the difference between PM2.5 and PM10. Include an explanation as why PM2.5 is more dangerous. (3-4 sentences).
ii.
1 answer
asked by
Esthela Angelique
451 views
The world record for pole vaulting is 6.15 m. If the vaulters mass was 83.5 kg, how
much potential energy did he have at the top
3 answers
asked by
Anonymous
523 views
Astronomers know that the best time to observe stars is when there is a New Moon. The New Moon allows the astronomers to observe
4 answers
asked by
huhuuh
591 views
under the same conditions of temperature and pressure, three different samples of the same uniform substance will have the same
4 answers
asked by
Anonymous
1,004 views
is Pluto a planet, if not explain why
1 answer
asked by
Star
380 views
what is a spiral galaxy?
2 answers
asked by
Star
543 views
An aeroplane flies horizontally at 80m/s in still air. If the aviator wishes to fly due south and the wind is blowing from the
2 answers
asked by
Alfred
630 views
Design an experiment to verify that new substances are formed and heat is
released or absorbed during a chemical reaction. i dont
2 answers
asked by
madison :):
1,161 views
What does ballast mean
1 answer
asked by
Hamzyyyy
354 views
Hi. Can I get some help plz?
What is the mass of water that results from combining 2.0 g of hydrogen with 16.0g of oxygen? A.
4 answers
asked by
Infires.
633 views
How does a cation differ from an anion?
1 answer
asked by
Anonymous
377 views
1) When an alkali metal is involved in a chemical reaction with a nonmetal, what charge will its atoms most likely form?
1- 2+ 1+
10 answers
asked by
help me please
7,908 views
plz check
Radioactive decay occurs when atoms - lose mass - join with atoms of another element*** - break down to form atoms of
7 answers
asked by
Anonymous
1,439 views
1. If you turn on the burner on a gas stove under a pan of cold water, energy moves from the burner to the pan of water. What is
7 answers
asked by
casey
1,876 views
how did you get the answer 67 to the question the neergy of the photon, to the nearest tenth place, is x10-50J?
2 answers
asked by
Candice
573 views
when that air under the envelope is heated , the balloon lifts . which of the following statement is true
A. hot air balloons use
59 answers
asked by
Madison
14,082 views
Find the amount of heat require to change ice at - 20c to steam at 120c. The mass of the ice is 5 kg
2 answers
asked by
manasa
1,114 views
Grouping of similar things together is called?
6 answers
asked by
khushi
2,610 views
aquaculture is the practice of farming sea organisms as a renewable food source?
true or false i think it’s false plz help
9 answers
asked by
heyyyo
2,287 views
selectively cutting down trees in an area of land can be best described as?
a:cutting down certain trees while leaving other
3 answers
asked by
heyyyo
710 views
how would you determine the relative density of kerosene using a relative density bottle
1 answer
asked by
samuel
595 views
Suppose some natural disaster occurs in the species of cement is forced to read locate from its original island where it dined
6 answers
asked by
Annie
597 views
Read the statements.
In eukaryotic organisms, genes usually consist of two alleles. The two alleles are often on different parts
4 answers
asked by
farmed
1,615 views
If anyone knows the answer to lesson 4:gravitanal potential energy 10 answers test plz tell me im desperate
4 answers
asked by
help
384 views
A family is traveling south to florida for a 5 day disney vacation. They are traveling 105 km per hour during the trip. Is this
3 answers
asked by
annonomys
836 views
Action-reaction forces do not cancel each other out because _____.
they are not equal they act in opposite directions they act on
2 answers
asked by
VIVI
630 views
if you have a 100 and get a zero how will that affect you grade?
4 answers
asked by
help meh
1,039 views
Why do we use small amount of indicator in the volumetric analysis
1 answer
asked by
francisca
374 views
One defining idea about empathy is that some aspect of it occurs automatically; people effortlessly mimic others' movements and
2 answers
asked by
alaina
490 views
the best way to represent a large ,complex system , such as the water cycle , would be a
2 answers
asked by
njgnejd
673 views
Why does a bucket filled with sand and water evaporate faster than a bucket filled with purely water?
6 answers
asked by
sarah
522 views
the term used to describe how light is reflected from a mineral's surface is.
A) glow B) luster*** C) density D) streak Im sorry
4 answers
asked by
uwu
1,056 views
which of the following statements describes areas of research for uses of bacteria in biotechnology?
bacteria are being studied
3 answers
asked by
anon
617 views
Pages
1
2
3
4
5
6
7
8