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Questions (959)
True or False?
In a Chi-Square distribution, when the degrees of freedom increase, the test statistic also increases (assuming
0 answers
541 views
Why is it called a building when its already built?
0 answers
204 views
Does time have a beginning or an end?
1 answer
196 views
0.2(3b-15c)
1 answer
254 views
Let d(n) equal the number of positive divisors of the integer n.
Find d(d(p^{p-1})) where p is any prime number.
1 answer
631 views
A football player kicks a ball with a speed of 22.7 m/s at an angle of 47° above the horizontal
from a distance of 36 m from the
0 answers
395 views
A diver runs along a horizontal cliff top of a large lake. She makes contact with the water 1.40 s after leaving the cliff and
2 answers
437 views
A lane mower is purhed with aforce of 50n if the angle between the handle of the mower and the ground is 30
a calculate the
2 answers
1,043 views
Four forces of magnitude 10n 5n 4n and 6n act on an object in the directions north west east and south respectively find the
2 answers
3,808 views
4x3-21x-192
1 answer
222 views
A meter stick is balanced at the 50.cm mark. You tie a 25.N weight at the 30.cm mark. Where should a 30.N weight be placed so
3 answers
2,004 views
An open right circular cylinder tank of given volume stands with vertical axis. The material of its bottom costs twice as much
1 answer
309 views
An open right circular cylinder tank of given volume stands with vertical axis. The material of its bottom costs twice as much
1 answer
317 views
Two college students have started their own business building computers from kits. Working alone, one student can build a
1 answer
410 views
2,104
1 answer
236 views
____ Is the mental process of making sense of sensory information.
Abstraction Sensation Perception Consciousness My answer is
2 answers
2,067 views
Which answer choice correctly states and describes the relationship between volume and particle motion within the states of
1 answer
1,161 views
Which level of stress is typically most productive?
3 answers
1,077 views
Given the equilibrium concentrations in the table, what is the equilibrium constant for the synthesis of ammonia at this
2 answers
1,713 views
Which of the following statements are true about a strong base and a weak base at a pH of 11?
A) HCl will not bring the pH of
3 answers
2,003 views
What change do you expect if the value of the reaction quotient is greater than the value of the equilibrium constant?
A- Rate of
3 answers
2,177 views
Which of the following is true about a thermonuclear reaction:
A- The rxn will always have 3 intermediate steps B- The reaction
1 answer
485 views
A decomposition reaction is found to be first order with respect to the reactant. What is the relationship between the rate and
1 answer
1,891 views
A decomposition reaction if found to be first order with respect to the reactant. What is the relationship between the rate and
1 answer
776 views
Examine the unbalanced electrolytic reaction and its two half-reactions.
Cd2+(aq) + Br2(g) → Cd(s) + Br–(aq) E0 = –1.49 V
1 answer
651 views
Which of these are possible uses of electrolysis?
A: recharging batteries B: obtaining pure metals from ores C: plating a steel
2 answers
1,075 views
If the rate law of a chemical reaction is k[NH4+]2[NO2–], what is the order of the reaction?
1. The order of the reaction
1 answer
703 views
Given a=1, b=3, and f(x)=x^2, apply the mean value theorem.
My question is, what would f'(c) in this problem? How do I find it?
1 answer
373 views
The exclusion principle states that:
A) if the position of a particle is well known, its momentum will not be well known. B) two
1 answer
608 views
How do I find the molar mass of C18H14N2Na2O8S2 (Alura Red)?
4 answers
499 views
Br2(aq) + 2 KI(aq) ==> 2 KBr(aq) + I2(s)
What is oxidized and what is reduced in this reaction?
3 answers
4,562 views
The aluminium sulphate hydrate contains 8.10 percent Al by mass. Calculate x, that is, the number of water molecules associated
2 answers
2,183 views
The gumball machine contains orange, yellow, and purple gumballs. The probability of getting an orange gumball is 3/4. The
1 answer
786 views
A sailboat travels 13 miles at 27 degrees east of north. Then travels 18 miles at 35 degrees south of east. What is the result
3 answers
447 views
Vector A has magnitude of 40m at angel 225,if we want to add A to B so as to produce a resultant along the positive x-axis that
5 answers
1,878 views
One of the questions on a survey of 1,000 adults asked if today's children will be better off than their parents (Rasmussen
1 answer
2,524 views
The bearing of R from P and Q are 330 degree and 240 degree, respectively and Q is north of P if |PQ|=50km, calculate |QR| and
3 answers
567 views
The area of a trapezium is 14.7cm if the parallel side are 5.3 and 3.1cm long find the height
1 answer
552 views
A fertilizer covers 3/4 square foots in 1/2 hour what the unit rate
11 answers
5,191 views
What strategy did the allies agree upon in order to win World War II
7 answers
2,085 views
Why did Britain and France adopt a policy of appeasement when meeting with Hitler at the Munich conference
9 answers
2,125 views
How are continental glaciers hours different from Valley Glaciers
1 answer
538 views
Find a positive angle less than 2piπ that is coterminal with the given angle.
StartFraction 11 pi Over 3 EndFraction 11π/3
1 answer
1,874 views
Find the value of x in the right triangle
x◣x+1 7
1 answer
537 views
Find the value of x in the right triangle if the sides given are x, x+1 and 7.
|\ x | \ |__\
1 answer
432 views
Is there right or wrong in art?
1 answer
362 views
Why are we dividing by a percentage yield and what are the results?
1 answer
349 views
Differentiate the following function.
f(t) = 6/7t^6 − 7^t4 + 4t
3 answers
443 views
An object is attached to a hanging unstretched, ideal and massless spring and slowly lowered to its equilibrium position, a
2 answers
4,729 views
Mark borrowed $200 at 12% compound interest
for two years. If he makes no payments. How much interest will he owe at the end of
1 answer
1,613 views
1. List two or more messages you received from your parents about who you are and what you were about. Discuss how the messages
4 answers
896 views
A pencil holder shaped like a triangular prism is
shown in the picture. The height of the pencil holder is 12 cm, and the volume
5 answers
4,988 views
I think I have my answer but I still need help
Daniellewillusetheinstructionsintheboxbelow to make a cleaning solution. Add 13
3 answers
592 views
Sarah is filling ice cream cones with shaving cream to hand out to trick or treaters. The cones have a largest radius of 3
3 answers
578 views
Sound travels about 340 m / s. The function d (t) = 340t gives the distance d (t), in meters, that sound travels in t seconds.
3 answers
2,423 views
The diagonals of a kite are 21 and 24 and the shorter diagonal bisects the longer. If the kite has exactly one right angle, what
3 answers
760 views
Is the equivalence point always supposed to be equal to 7. I just did a lab and when plotting my data I calculated my
1 answer
500 views
A box is pushed by a 750 N force that acts at a 30 degree angle with a friction less surface.The force pushes a box that has a
1 answer
8,425 views
Suppose that you are a bicycle producer. In three to four sentences, explain why you are willing to supply the most bicycles at
1 answer
1,595 views
Amy bought a diamond ring for $6,000. If the value of the ring increases at a constant rate of 5.8% per year, how much will the
1 answer
2,081 views
I posted a follow up question to your answer to my recent question about a sum of a series.Hope you can check it.
Thank you!
0 answers
535 views
How do we find the sum of n terms of the series,
1+(4/7)+(7/49)+(10/343)+..... I know that it can be written as a combination of
7 answers
1,900 views
A and B are two events.
P(A/B)=5/11 P(A~B)=9/10 (~ indicates either A or B) P(B)=x How do we find P(A^B')? (^ indicates both A
1 answer
335 views
Your vertical spring accelerometer has a 200 g mass hanging from it. You climb aboard the roller coaster and watch the
0 answers
581 views
Radon 86222Rn is a radioactive gas with a half-life of 3.82 d. If there are initially 400 decays/s in a sample, how many radon
1 answer
697 views
Can someone help me complete the perfect square with this trinomial, I don't understand how to do it. Thanks
1/(x^8) -1/(x^4) +1
1 answer
476 views
In a single-slit diffraction pattern, the distance between the first and second minima is 4.2cm on a screen 3.8m from the slit.
0 answers
1,002 views
Find the probability that with one spin, the spinner will not stop on A. Write the answer as a reduced fraction.
letters - E A D
1 answer
1,071 views
A building 200 feet tall casts an 80 ft long shadow. If a person looks down from the top of the building which of the following
2 answers
7,404 views
You want to jump from an 8.2 m high building to a 10 m high building. The gap between the buildings is 2.4 m, and you can run
2 answers
496 views
What intermolecular forces are responsible for neoprene's stretchiness?
0 answers
606 views
Why must the compass opening be greater than 1/2 of the segment when construction a perpedicular bisector
2 answers
972 views
Herring Wholesale Company has a defined benefit pension plan. On January 1, 2016, the following pension related data were
1 answer
1,554 views
For what values of the constants a and b is (1,3) a point of inflection of the curve y=ax^3+bx^2?
1 answer
2,119 views
I have a patio which is 3m wide. The roof of this consists of sheets of plastic which are 900mm wide. I have used as few sheets
0 answers
523 views
If it is 9am now, what time will it be in 2003 hours from now? Mental way please.
4 answers
572 views
If log with base b (2)=0.39 and log with base b (3)=0.61 evaluate the following. log with base b (8). Simplify your answer. How
1 answer
744 views
Within a square land, Asmo cut out a rectangular land with width of 10
meters (as shown below), the remaining land’s area is
1 answer
688 views
A 5ft tall person is walking toward a light 20ft off the ground at 8 ft/sec. What is the rate of change of the length of the
1 answer
1,830 views
The Infinity Club consists of 5 boys and 6 girls. How many working groups of 5 people can be formed with:
a)no restrictions (my
0 answers
739 views
How many ways the letters in BIOENGINEERING be arranged if B must not be next to the O.
Thanks in advance (is this correct
0 answers
432 views
There are 5 rock songs, 6 country songs, and 3 hip-hop songs. How many different albums can be formed using the songs if the
2 answers
540 views
A ball is raised to a height of 30.0m above the ground. What would its velocity be when it has fallen to a height of 15.0m above
2 answers
1,330 views
The equation is Z^2-8+12/Z^2+Z-6
I got this far (Z-6)(Z-2)/(Z+2)(Z-3) It needs to be simplified further, as far as my
4 answers
431 views
When 1.5 grams of salt are added to 12.0 grams of water and the salt dissolves, what is the mass of the system?
1 answer
488 views
For the reaction 2N2O(g) ⇌ O2(g) + 2N2(g), what happens to the equilibrium position if the volume decreases?
A. does nothing B.
1 answer
3,659 views
To save expenses, you would like to buy the shortest mirror that will allow you see your entire body, should the mirror be
A)
0 answers
768 views
C the power of two+18c-175=0
Help please?
1 answer
365 views
The A above middle C has a frequency of 440 Hz. If you play this note on a piano and the piano string oscillates with an
0 answers
444 views
Spontaneous reactions ________.
always release free energy*** always result in increase disorder of the system always take place
1 answer
687 views
Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g)
1 answer
844 views
Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g)
1 answer
589 views
At what stage of a reaction do atoms have the highest energy
Product stage Reactant stage Transition state stage*** The stage of
1 answer
2,141 views
When 2.0 g of solid NaOH (∆Hsoln = -445.1kJ/mol) dissolves in 10L of water, how much heat is released?
445.1 kJ 44.51 kJ 22.26
2 answers
931 views
Calculate the energy required to produce 5.00 mol of Cl2O7 on the bases of the following balanced equation. 2Cl2(g) +7O2(g)
1 answer
1,088 views
What does the symbol ∆H stand for?
one Calorie given off by a reaction the heat capacity of a substance*** the heat of a
1 answer
1,970 views
Which of the following is the correct unit for specific heat?
degree C*** Cal cal/g cal/(g*deg C)
1 answer
1,160 views
The heat capacity of an object depends in part on its
enthalpy mass potential energy*** shape
0 answers
897 views
When your body breaks down sugar completely, how much heat is released compared to burning the same amount of sugar in a flame?
1 answer
1,847 views
What would likely happen if you were to touch a metallic beaker in which an endothermic reaction were occurring?
The beaker would
1 answer
2,162 views
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