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lee
Questions and answers by
lee
, page 3
Questions (248)
18*5 1/16=
1 answer
259 views
Consider the reaction 2 NO2 (g) ⇌ 2 NO (g) + O2 (g). If the initial partial pressure of NO2 (g) is 3.0 bar, and x is the
3 answers
551 views
A car,mass of 1500kg,accelerates at 2m/s from rest. Find 0-60mph time, use 1 mile=1613m
1 answer
408 views
How do i work out the mass of a flywheel. I am given the density as 7500kg/m3, a 500mm diameter and a 10cm thickness.
Please help
3 answers
481 views
a softball is thrown at a speed of 40 miles per hour in a course that makes an angle of 60 degrees with the positive x axis.
2 answers
706 views
A rectangular dog pen that has the greatest possible area within a budget of 50$.A pen needs at least one gate for a dog.
2 answers
538 views
A car can travel 436 miles on 17 gallons of gas. How far can it go on 22 gallons of gas?
3 answers
532 views
Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.
3 answers
957 views
Jessica left the mall and drove toward the desert at an average speed of 40 mph. Shreya left one hour later and drove in the
2 answers
562 views
Saturn rotation and revolution compared to earth
1 answer
351 views
ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen monoxide, given that ΔH°f of NO2(g) is 33.90 kJ/mol.
3 answers
1,034 views
A bag contains six blue and 4
red balls ,3 balls are drawn at random replacement what is expected no.of red balls that can be
1 answer
358 views
Which of the following best illustrates a positive feedback loop?
3 answers
857 views
In triangle XYZ,A is the midpoint of YZ. The bisector of the exterior angle at X of XYZ cuts YZ produced at B. The line through
1 answer
361 views
What was the main goal of Greek colonization in the archaic period
3 answers
702 views
A locomotive of mass 20000kg is traveling at a speed of 54km/hr on a straight track.if a breaking force of 250N per turn is
1 answer
460 views
A study found that athletes who rested after exhausting exercise had half life of lactic acid removal about 23 minutes. How long
1 answer
398 views
Which of the following is consistent with the plate tectonic theory?
Which of the following is consistent with the plate tectonic
3 answers
1,634 views
The table below shows the scores of a group of students on a 10-point quiz.
Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4
6 answers
8,755 views
N2 (g) + 3H2 (g) → 2NH3(g) ΔH = -92.2 kJ
How much heat (in kJ) is released if 13.3 g of hydrogen is consumed to make ammonia?
3 answers
3,002 views
Marcella and Ruben bought some party supplies. Marcella bought 3 packages of
balloons and 4 packages of favors for $14.63. Ruben
2 answers
499 views
A ball is thrown into the air with an upward
velocity of 40 ft/s. Its height h in feet after t seconds is given by the function h
4 answers
2,497 views
A theater has 22 seats in the first row, 25 seats in the second row,
28 seats in the third row, and so on. How many seats are in
2 answers
1,050 views
A walker's speed, v, is proportional to the ratio of his leg length, L, and the period of the repeating motion of his legs, T,
3 answers
609 views
Predict the rate of change in the concentration of N2O over this time interval. In other words, what is Δ[N2O]/Δt?
2 answers
1,230 views
Calculate the change in entropy that occurs in the system when 1.49 mol of acetone (C3H6O) condenses from a gas to a liquid at
4 answers
3,543 views
2Ca(s)+O2(g) → 2CaO(s)
ΔH∘rxn= -1269.8 kJ ΔS∘rxn= -364.6 J/K Calculate the free energy change for the reaction at 22 ∘C
2 answers
1,061 views
two straight parallel conductors carry current 200mA and 1A in opposite direction wires are 20 cm apart the distance of neutral
2 answers
531 views
if one honeybee makes 2/5 teaspoon of honey during its lifetime .how many 6/10 honeybee are needed to make teaspoon of honey
3 answers
261 views
Because Moon’s rotation and revolution times are so close, the Moon appears to us on Earth to ____________________ the same
4 answers
425 views
Was early twentieth-century Canada life and identity shaped more by external or internal forces?
1 answer
281 views
I need help with creating both pseudocode and a flowchart to design
a mobile app. The app will write the device's latitude and
2 answers
615 views
Write the inequality for the following: four times a number increased by 2 is less than -24
1 answer
238 views
What symentry is a line going through the middle of a shape?
1 answer
165 views
A cylindrical jug that carries 5 ℓ of water when it is filled to the brim, has a height of 20 𝑐𝑚. Determine the diameter
2 answers
555 views
When 𝐼 = 10, 𝑎 = 2 and 𝑛 = 5, calculate the value of 𝑑 in the formula below:
𝐼 = 𝑎 + (𝑛 − 1) 𝑑
1 answer
169 views
Solve for 𝑝 in the following equation: 2(𝑝 − 7) + 3𝑝 = 2𝑝 − 8
1 answer
289 views
What makes this excerpt part of the exposition of the story?
It describes the setting of the story. It introduces the main
1 answer
171 views
the point p is on the graph f(x)=x^2+2x+5 determine the distance from the point (-3,-2) to the point P as a function of x
1 answer
91 views
2st^2-s^2 for s=4 and t=8
2 answers
38 views
Write the fraction as a sum or difference
18x+51/17
2 answers
33 views
-2/3+(-3/5) sum
2 answers
19 views
- 2/3+(- 3/5)
2 answers
26 views
Use the distributive property to simplify the expression
1/2(1/2 y - 3/4)
2 answers
31 views
Use the distributive property to simplify the expression
1/2(1/2y - 3/4)
2 answers
32 views
Find all the zeros of the equation.
\[-x^{3}-3 x^{2}=6 x+4\]
1 answer
20 views
Find all the zeros of the equation.
-x^3-3x^2=6x+4
1 answer
26 views
Which of the following best explains the changes in cultural exchange that developed during the twentieth century? (1 point)
O
7 answers
76 views
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