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Natasha
Questions and answers by visitors named
Natasha
Questions (256)
When a 58g tennis ball is served, it accelerates from rest to a speed of 45m/s. The impact with the racket gives the ball a
7 answers
12,466 views
How many grams of nitric acid (HNO3) must be dissolved in 740 mL of water to make a solution with a pOH = 8.3?
6 answers
1,717 views
Biologists studying the healing of skin wounds measured the rate at which new cells closed a razor cut made in the skin of an
3 answers
1,712 views
A net force of 25N is applied for 5.7s to a 12-kg box initially at rest. Waht is the speed of the box at the end of the 5.7s
6 answers
8,914 views
How do I convert these decimals?
You need to give us some decimals to convert. When you do, show us what you think should be done
2 answers
592 views
What is Arsenic pollution?
I assume you are talking about higher than normal amounts of arsenic in air/water/etc. Arsenic need
1 answer
556 views
Which one of the following groups has the best chance of bringing a class
action lawsuit? A. Everyone who developed a severe
1 answer
1,038 views
Which of the following groups has the
best chance of bringing a class action lawsuit? 1. Everyone who developed a severe sunburn
1 answer
422 views
An action in________ law would be the
most appropriate way to stop a construction company from razing a 150-year-old house that
2 answers
994 views
I posted 2 questions under Law.
Margie answered them. Can you please look at the questions and tell me if I am right? Thank you!
1 answer
932 views
Identify the period and amplitude of each function.
y=3cosÈ y=-2cos2t y=2cos1/2t
1 answer
340 views
We did this in a lab and nothing happened, but I'm pretty sure something was supposed to happen, so my question is:
What happens
1 answer
479 views
Rationalize the denominator of each expression. Assume that all variables are positive.
I understand how to divide them, but
1 answer
858 views
Appropriate materials and equipment for
outdoor play should contain which? 1. a lot of immovable parts 2. some loose parts 3.
3 answers
1,498 views
In a collection of nickels, dimes, and quarters worth &6.90, the ratio of the number of nickels to dimes is 3:8. The ratio of
3 answers
1,358 views
7 + 2 (-8x + y ) - (-11x + 2y)
1 answer
409 views
Calculate the maximum concentrations of Pb+ that can exist in 3.0 x 10(-2)M Na2SO4 without forming a precipitate.
1 answer
341 views
In a laboratory activity, a student team measures the heat released by burning heptane. Using the following data, calculate the
4 answers
1,465 views
For each piecewise function, find the specified function values.
g(x)={x+4, for x<1 {8-x, for x>1 g(-4),g(0),g(1), and g(3)
4 answers
1,841 views
P (-1, 2)
Q (k, -4) m= -1/2 determine k so that the line through the given points will have slope m. how do you do this?
3 answers
372 views
You are interested in examining the metabolism of a new drug that has been developed in your company. Briefly describe how you
1 answer
1,028 views
an object of mass m1= 311 g on an inclined surface. The angle of the inclined surface is θ = 40o with the horizontal. The
3 answers
970 views
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below.
2 answers
653 views
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below.
2 answers
648 views
A standard man does reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the mass of
2 answers
554 views
A standard man wants to do reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the
1 answer
468 views
What is an essential characteristic of an object in equilibrium?
3 answers
767 views
Almost everyone at the Bright Corporation reads a daily newspaper on a regular basis. In fact, altogether te company employs
4 answers
384 views
How has management changed due to the increased role of globalization? Would a good leader in one country automatically be a
1 answer
484 views
How has management changed due to the increased role of globalization? Would a good leader in one country automatically be a
1 answer
461 views
derivative of y= x^2 sin x
1 answer
351 views
What is the lowest energy alternative resonance structure for this compound:
-HC-N+///N / H3C Where /// is a triple bond
3 answers
591 views
What is the lowest energy alternative resonance structure for this compound:
CH3-CH-N<triple bond>N There is a negative charge on
1 answer
393 views
What is the lowest energy alternative resonance structure for this compound:
CH3-CH-N<triple bond>N There is a negative charge on
1 answer
407 views
Sorry for re-posting this question but I feel as if it hasn't been read or something. Otherwise does no one really know the
3 answers
371 views
a smokestack is 205 m high. from 2 points C and D on the same side of the smoke stacks base b, the angles of elevation to the
2 answers
510 views
What is the lowest energy alternative resonance structure for this compound:
CH3-CH-N<triple bond>N There is a negative charge on
2 answers
531 views
what is the lewis structure for this:
CH3OH2+ I tried drawing one but I got my formal charges wrong, and it didn't add up
3 answers
1,126 views
Draw the structure of:
(E)-1,2-dibromo-3-isopropyl-2-hexene My approach: I know how to answer this question in terms of basic
4 answers
2,127 views
What would be the acid base reaction of:
c2h30- and phenol(benzenol) C6H5OH be? Ok so this would result in the production of
3 answers
677 views
I am reading through material for a recrystallization experiment, and I had a few things I wasn't sure about;
- Why once
3 answers
536 views
The solubility of Acetanilide in hot and cold water is:
Temperature.........Solubility in 100ml H20 100C....................5.5g
4 answers
1,868 views
I am about to do an extraction experiment, and needed help with a question to improve my understanding. Any help appreciated.
1.
2 answers
595 views
(-3)-[3(-4)+7=
1 answer
199 views
2. Assume that the population proportion of adults having a college degree is 0.35. A random sample of 200 adults is to be
4 answers
1,003 views
I need help on these questions. My answers have the < by them
1. In a typical neuron, sheaths of fatty tissue called _______
7 answers
3,516 views
How can the World-System theory be applied to the events in Timor Leste since August 1999?
1 answer
359 views
In Arthur Miller's "Death of a Salesman" What were the job rights, or Willy Loman?
9 answers
397 views
Sodium Vapor lamps emit a characteristic yellow light . What can we deduce about sodium atoms, based on this observation?
Please
2 answers
605 views
Sodium Vapor lamps emit a characteristic yellow light . What can we deduce about sodium atoms, based on this observation?
2 answers
615 views
how do a write a paragraph on how i plan to obtain my goal as a Doctor?
1 answer
323 views
How many milligrams are there in 1.57 kg?
1 answer
309 views
You are given 350 mL a stock solution of 1.66E-02 M benzoic acid, MW = 122.125 g/mol.
Answer the following questions. A. What is
3 answers
559 views
You are given 350 mL a stock solution of 1.66E-02 M benzoic acid, MW = 122.125 g/mol.
Answer the following questions. A. What is
2 answers
805 views
Which of the following would NOT be a factor for a solute to dissolve in water?
A. A solute separates into ions which are
2 answers
986 views
Which of the following would NOT be a factor for a solute to dissolve in water?
A. A solute separates into ions which are
2 answers
550 views
Search the web for project planning tools and describe at least 2. download a demo to two, and build a project so you can see
1 answer
381 views
What is the meaning of angle of depression and angle of elevation?
3 answers
763 views
why diversity is or is not an important element of our Canadian culture in your opinion?
7 answers
492 views
Is this correct?
Even though it is almost summer, we still have overcast skies and light rain. The neighbors’ new dog is,
7 answers
553 views
Paloma did not make it to work for her car, broke down on the freeway. Is this better?
The hardware store down the street, which
2 answers
992 views
The accelerator pedal in the car is pressed, resulting in a faster consumption of fuel in the engine.
Now according to previous
1 answer
400 views
How is pushing down the accelerator pedal resulting in a faster consumption of fuel in the engine concentration?
1 answer
341 views
How is pushing down the accelerator pedal resulting in a faster consumption of fuel in the engine concentration?
1 answer
916 views
trains A and B are traveling in the same direction on paraleel tracks. Train A is traveling at 80 miles per hour and train B is
2 answers
972 views
a. Calculate the delta H, delta G, and equilibrium constant for the reaction of methane with Cl2 to give CH3Cl and HCl. Use the
1 answer
687 views
When you write a definition of something, I was taught in school that you should not use the word you are defining in the
2 answers
762 views
How did african slavery contributed to the economic growth of the british economy
1 answer
458 views
Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The
1 answer
738 views
using math expressions, define the following: Ka,pKa, pKb, Kb and pKw
2 answers
524 views
An 18-year-old runner can complete a 10.0 km course with an average speed of 4.58 m/s. A 50-year-old runner can cover the same
4 answers
1,516 views
A jetliner, traveling northward, is landing with a speed of 67 m/s. Once the jet touches down, it has 765 m of runway in which
2 answers
663 views
The magnitudes of the four displacement vectors shown in the drawing are A = 13.0 m, B = 11.0 m, C = 12.0 m, and D = 27.0 m.
2 answers
871 views
Two cars cover the same distance in a straight line. Car A covers the distance at a constant velocity. Car B starts from rest
4 answers
5,734 views
(a) Just for fun, a person jumps from rest from the top of a cliff overlooking a lake. In falling through a distance H, she
5 answers
2,900 views
In a historical movie, two knights on horseback start from rest 88.0m apart and ride directly toward each other to do battle.
3 answers
1,031 views
A dynamite blast at a quarry launches a chunk of rock straight upward, and 2.0s later it is rising at a speed of 15m/s. Assuming
3 answers
5,386 views
What equation gives the velocity as a function of time for an object with constant acceleration?
1 answer
329 views
What equation gives the position as a function of time for an object with constant acceleration?
4 answers
2,655 views
Can you think of any ways to measure instantaneous speed directly?
2 answers
515 views
An 18-year-old runner can complete a 10.0-km course with an average speed of 4.39 m/s. A 50-year-old runner can cover the same
2 answers
648 views
Derive an expression for the vertical position of a projectile in terms of its horizontal position. This sometimes called
2 answers
471 views
What are the acids in the house?
1 answer
255 views
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head,
3 answers
1,356 views
An airplane with a speed of 76.8 m/s is climbing upward at an angle of 48° with respect to the horizontal. When the plane's
1 answer
478 views
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x
1 answer
465 views
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head,
2 answers
579 views
A 343-kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. Thirty seconds later, it is sailing 37.5° north of east
2 answers
570 views
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the
1 answer
698 views
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the
4 answers
598 views
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x
2 answers
553 views
A 343-kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. Thirty seconds later, it is sailing 37.5° north of east
2 answers
536 views
At an instant when a soccer ball is in contact with the foot of a player kicking it, the horizontal or x component of the ball's
5 answers
9,938 views
A 20kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80N and is
5 answers
4,171 views
The large blade of a helicopter is rotating in a horizontal circle. The length of the blade is 6.7m, measured from its tip to
4 answers
1,940 views
The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the
2 answers
898 views
The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless,
3 answers
2,122 views
A 260-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0°
1 answer
399 views
A 260-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0°
1 answer
418 views
In the figure below, an object, after being released from its circular path, travels the distance OA in the same time it would
2 answers
595 views
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