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Melissa
Questions (688)
Light with a wavelength of 500 nm (5. 10-7 m) is incident upon a double slit with a separation of 0.28 mm (2.80 10-4 m). A
0 answers
635 views
Light with a wavelength of 500 nm (5. 10-7 m) is incident upon a double slit with a separation of 0.44 mm (4.40 10-4 m). A
0 answers
809 views
1)How can you indicate that the bacteria have taken up the plasmid?
2)What is the purpose of the LB/amp(-) plate? Should there be
0 answers
545 views
1)How can you indicate that the bacteria have taken up the plasmid?
2)What is the purpose of the LB/amp(-) plate? Should there be
1 answer
562 views
A test charge of +3.00 10-6 C experiences a downward electrostatic force of 11 N when placed at a certain point in space. What
1 answer
2,193 views
Two identical thin wires are oriented along the x and y axes.
With current on x plane going North. Current on y plane going
0 answers
725 views
Use implicit differentiation to find the slope of the tangent line to the curve y/( x + 4 y) = x^4 – 4
at the point (1,-3/13)
0 answers
799 views
Use implicit differentiation to find the slope of the tangent line to the curve y/( x + 4 y) = x^4 – 4
at the point (1,-3/13)
7 answers
656 views
if the original concentration of phage was markedly increased from the concentration that you received, how could you ensure
1 answer
696 views
A linear model can be used to describe the relationship between fuel economy(mpg) and horsepower (hp) for certain automobile
1 answer
973 views
A Model M3SWE mandolin has a list price of $1299.90, with a chain discount of 5/3/2. (A) What would be the trade discount
0 answers
551 views
Amy Powell invested $8500 twice a year in an ordinary annuity at New York Securities for a period of 5 years at an annual
0 answers
558 views
y'(x)=sqrt2y(x)+7, y(4)=1
Solve the seperable diff eq
0 answers
416 views
Determine which sampling method was used in each scenario.
on a particular day 5 flights are selected at random and all of the
0 answers
440 views
Determine which sampling method was used in each scenario.
on a particular day 5 flights are selected at random and all of the
0 answers
435 views
How were the Mongols able to conquer so much territory so rapidly?
1 answer
446 views
A television program director has 14 shows available for Monday night and 5 shows must be chosen. How many different possible
1 answer
1,036 views
The Midtown Middle School cheerleaders earned $175 at a car wash. If this amount is 25% of the cost of a new set of uniforms,
2 answers
610 views
I am supposed to add NH4 and C2H3O2 together and write the new ion. Would it be NH7C2O2? do I add the hydrogens together and
3 answers
1,954 views
How does deviance and crime function both for and against society? Be sure to include social control in your answer group.
1 answer
497 views
An airplane is traveling in the direction 20degrees west of north at 700 km/hr. Find the component form of velocity of the
2 answers
2,690 views
Determine which of the flowing points lie on the line given by the equation 3x+6y=12
1 answer
389 views
Assuming the fluid has a density of 1.00 (g/cm^) at what height h should the bottle be placed so the liquid pressure is 38mm-Hg
1 answer
710 views
Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the
0 answers
652 views
A 7.9cm diameter horizontal pipe gradually narrows to 5.9cm . When water flows through this pipe at a certain rate, the gauge
0 answers
571 views
The half-life of Carbon-14 is 5730 years. What is the age of a fossil containing 1/16 the amount of Carbon-14 of living
1 answer
1,393 views
a child twirls a yo-yo about in a horizontal circle. The yo-yo has a mass of 0.20 kg and is attached to a string 0.8 m long.
0 answers
852 views
A 160kg horizontal beam is supported at each end. A 330kg piano rests a quarter of the way from one end.
What is the vertical
2 answers
4,197 views
A centrifuge rotor rotating at 11500 is shut off and is eventually brought uniformly to rest by a frictional torque of 1.52 .
a.I
2 answers
583 views
Combine and show all work please
3/2y+2/y-1-2/y
1 answer
291 views
simplify
a-1/a ___________ 2+3/2+1/a^2
0 answers
283 views
Use the tangent line approximation to approximate the value of ln(1.004)
0 answers
386 views
In this lab experiment you will make 100.0 mL of a 0.100 M solution of Co(NO3)2. However you must calculate the number of moles
2 answers
566 views
State a trigonometric ratio that is equivalent to each of the following trigonometric ratios
Sin 3pie/10 Cos 6pie/7
1 answer
2,491 views
A hydraulic lift is used to jack a 780 kg car 15 cm off the floor. The diameter of the output piston is 15 cm, and the input
1 answer
1,151 views
Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 1.6000kg when weighed in air.
0 answers
653 views
Analyze and record, in the form of T Accounts, Mr. James' transactions:
Jan 1: Amount invested in the business $10,000 Jan 7:
0 answers
608 views
convert 458166 atoms of H20 to moles
1 answer
357 views
George pays a flat amount for the first 200 minutes plus so much for each additional minute on his cellular phone each month.
1 answer
562 views
Jared can paddle his canoe 1 mile upstream in 1 hour, but it takes only a half hour to paddle back the same distance. Find the
1 answer
462 views
Find all solutions of the equation (sec(x))^2−2=0
The answer is A+Bk where k is any integer and 0<A<pi/2 Find: A= pi/4? B=??
1 answer
730 views
Find all solutions of the equation (sec(x))^2−2=0
The answer is A+Bk where k is any integer and 0<A<pi/2 Find: A= pi/4? B=??
1 answer
588 views
Show how to make one addend a ten. Complete the new addition sentence.
38 + 25=? ---- + ---- =
4 answers
598 views
2st squared -s squared.
S=4 t=8
1 answer
609 views
If the endpoints of the diameter of a circle are (3, 1) and (6, 5), find the length of the diameter.
2 answers
2,798 views
The function f(x) = ax^3-x^2+bx-24 has three factors. Two of these factors are x-2 and x+4. Determine the values of a and b, and
1 answer
916 views
An open topped box can be created by cutting congruent squares from each of the 4 corners of a piece of cardboard that has
0 answers
750 views
An open box is made from a rectangular piece of cardboard, with dimensions of 24 cm by 30 cm, by cutting congruent squares from
0 answers
647 views
What processes cause changes in settlement patterns?
2 answers
1,126 views
What social factors determine population trends and demographics of a region?
1 answer
466 views
What human and physical features influence the size and distribution of settlements?
3 answers
949 views
What economic factors determine population trends and demographics of a region?
3 answers
414 views
What processes cause changes in settlement patterns?
3 answers
908 views
How do push and full factors and physical geography affect immigration?
3 answers
433 views
The volume of a rectangular box is (x^3+6x^2+11x+6) cm^3. The box is (x+3) cm long and (x+2) cm wide . How high is the box
1 answer
1,044 views
Consider the function f(x)=x^3+4x^2+kx-4. The remainder from f(x)/(x+2) is twice the remainder from f(x) / (x-2). Determine the
2 answers
4,339 views
The function f(x)=ax^3-x^3+bx-24 has three factors. Two of these factors are x-2 and x+4. Determine the values of a and b , and
2 answers
2,208 views
Factor each expression
(X+5)^3-(2x+1)^3
0 answers
355 views
Factor each expression
(X+5)^3-(2x+1)^3
1 answer
351 views
In the question "Why the haitian revolution probably truer to itself than it's French or American counterparts?" Is it referring
0 answers
493 views
Each dividend was divided by another polynomial, resulting in the given quotient and remainder. Find the divisor
Divided:5x^3+x^2
1 answer
2,525 views
Evaluate f(x) = x^2+3-4
For f(1/4)
0 answers
320 views
Just a fast question. Im writing about Gothic stained glass windows, and was wondering if in the decorations on the windows was
3 answers
622 views
Please help me with this algebra question?!?!?!?
Find the discriminant of the equation in terms of p and q. Suppose q<p<0. Tell
0 answers
513 views
determine where f(x)={x^2-5x+6/x-3, if x<3
{1/x-2, if x>3 is discontinuous.
1 answer
375 views
The distance between successive crests in a series of water waves is 5.0m; the crests travel 8.6m in 5.0s . Calculate the
2 answers
3,387 views
Aset P has a beta of 0.9. The risk-free rate of return is 8%, while the return on the S&P 500 is 14%. Asset P's required rate of
1 answer
1,622 views
Some children go tobogganing on an icy hill. The start from the rest at the top of the hill. The toboggan and children have a
1 answer
2,907 views
Your English teacher can swim with a constant speed of 0.67m/s. While facing south , he attempts to swim straight across the St.
1 answer
610 views
An object falls from the top of the school, which is 6.06m high. Assume air resistance can be ignored and the acceleration is
2 answers
1,158 views
A formula one car is moving at mach 0.16 when the temperature of the air is 20.0c. What is the speed of the car in kilometers
1 answer
418 views
A plane traveling at 260m/s has a speed of Match 0.80. What is the speed of sound in the air
1 answer
397 views
Assuming that the speed of sound at a certain altitude is 330m/s calculate the speed of an airplane that is traveling at match
1 answer
394 views
The source of a wave generates 25 crests and 25 troughs in 5.0s, and the distance between two successive crests in that wave is
2 answers
1,207 views
The distance between the second and sixth crests in a wave is 75cm and one crest travels a distance of 25 cm in 3.0s . Find the
3 answers
2,367 views
The second resonant length of an open air column is 48cm. Determine the first and third resonant lengths
2 answers
1,223 views
What's the shortest air column , closed at one end, that will resonate at a frequency of 440.0Hz when the speed of sound is 352
3 answers
3,063 views
The first resonant length of a closed air column occurs when the length is 30.0cm . What will the second and third resonant
3 answers
2,536 views
The third resonant length of a closed air column is 75cm . What is the first and second length
2 answers
1,645 views
A car sounds its horn (502 Hz) as it approachs a pedestrian by the side of the road. The pedestrian has perfect pitch and
1 answer
1,326 views
Assuming that the speed of sound at a certain altitude is 330m/s calculate the speed of an airplane that is travelling at
(A)
1 answer
592 views
What is the relationship between air temperature and the speed of sound?
0 answers
110 views
Calculate the speed of sound wave in air if its frequencies and wavelengths are
256Hz and 1.32m
1 answer
413 views
Calculate the mass of silver bromide produced from 22.5 g of silver nitrate in the following rxn: 2AgNO3(aq) +
1 answer
1,820 views
A bell is rung at a sound intensity of 70dB . A trumpet is blown at an intensity that is greater by a factor of 10^3. What is
1 answer
999 views
A vibrating 400.0Hz tuning fork is placed in fresh water. What is the frequencyin herbs and the wavelength in meters
(A) within
1 answer
699 views
A fan at a baseball game is 100.0m from the home plate. If the speed of sound is 350 m/s , how long after the batter actually
2 answers
1,321 views
A 200m dash along a straight track was timed at 21.1 s by a timer located at the finish line who used the flash from the
2 answers
3,424 views
How much time is required for sound to travel 1.4 km through air if the temperature is 30.0 c
1 answer
2,539 views
The motor for an elevator can produce 2200 W of power. The elevator has a mass of 1100 kg complete with contents . At what
3 answers
3,210 views
How much work can a 22 kW car engine do in 60 seconds if
It is 30% efficient It is 100% efficient
1 answer
2,599 views
A boy fires a 60 g pebble with his slingshot. The pebble leaves the slingshot at 35m/s
How high above the slingshot will the
2 answers
3,102 views
In law we watched a movie called 12 angry men , and there is a question I am stuck on, any help would be great!
How does the film
1 answer
460 views
1: In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community ( HIV AIDS ).
5 answers
753 views
Poverty, pollution, hiv aids, nutrition, floods. Name two institutions or community organizations that are involved in
1 answer
557 views
A chair lift takes skiers to the top of a mountain that is 320 m high. The average mass of skiers complete with equipment is 85
1 answer
1,271 views
An archer locks a 0.20kg arrow on a bowstring. Then the archer exerts an average force of 110N to draw the string back 0.60 m .
1 answer
2,249 views
two ropes are tied to a large boulder. one rope is pulled with a force of 400N due east. The other rope is pulled with a force
1 answer
858 views
A 6.0g pellet of lead at 32 degrees c gains 36.8 J of heat. What will be its final temperature
1 answer
1,030 views
A 50.0kg cyclist on a 10.0kg bicycle speeds up from 5.0m/s to 10.0m/s , the total kinetic energy before acceleratingis 750, and
8 answers
4,250 views
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