Questions and answers by

Chan

Questions (73)

Find the Taylor formula up to n=3 for f(x)=sin(x) at X0=pi/3:sin(x)=a0+a1(x-pi/3)+a2(x-pi/3)^2+a3(x-pi/3)^3+R3 Use this formula
1. 1 answer
2. 526 views
A uniform metal ball (mass m) is tied to the end of a string (massless, length L). The other end of thestring is fixed. The ball
1. 0 answers
2. 967 views
There were 336 people at a concert. if 2/3 were children, how many chairs were needed for adults?
1. 1 answer
2. 456 views
I need help with questions regarding information about the Galapagos Island volcano. 1. where is the volcano located2. how long
1. 1 answer
2. 653 views
What is the molarity of a solution containing 10.g of NaOH in 700.mL of NaOH solution?Express your answer to two significant
1. 1 answer
2. 443 views
Determine the volume, in milliliters, required to prepare each of the following diluted solutions.40.0mL of a 2.75M KNO3
1. 2 answers
2. 1,420 views
Calculate the molarity (M) of the following solutions:4.00moles of glucose in 3.00L of glucose solution 5.50g of KOH in 4.00L of
1. 2 answers
2. 2,133 views
For Fourier Series of f(x)=sin|x| which is an even function, bn should be 0. However, I solved that b1=1 while the rest of the
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2. 414 views
How many moles of glucose , C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available.C6H12O6(s) +
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2. 2,370 views
Calculate the number of moles of Al2O3 that are produced when 0.6 mol of Fe is produced in the following reaction. 2Al(s) +
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2. 1,346 views
How many moles of aluminum are needed to react completely with 1.2 mol of FeO?2Al(s) + 3FeO(s)-- 3Fe(s) + Al2O3(s)
1. 1 answer
2. 1,165 views
How many moles of aluminum are needed to react completely with 1.2 mol of FeO?2Al(s) + 3FeO(s)-- 3Fe(s) + Al2O3(s)
1. 1 answer
2. 1,256 views
Write a linear equation relating x and yx 0 3 6 10 y 2 8 14 22
1. 1 answer
2. 772 views
Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are
1. 1 answer
2. 537 views
A simple pendulum has a period T on the surface of planet Earth. When taken to the surface of planet X, the same pendulum has a
1. 1 answer
2. 1,370 views
Find the radius of convergence and interval of convergence for‡”(from n=1 to �‡ ) (-1)^n-1 multiplied by
1. 1 answer
2. 515 views
x(x-3)+4= 3x^2 - 2(x+8)3
1. 0 answers
2. 248 views
(2x^3)-23
1. 0 answers
2. 253 views
much force is Mike applying to the 1000 kg car to make it accelerate at a rate of .05 m/s2?I need help understanding this.. I'm
1. 1 answer
2. 433 views
How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....
1. 1 answer
2. 3,016 views
Hi! could anyone help me to solve this problem please.Three point charges are located at the corners of an equilateral triangle
1. 1 answer
2. 1,164 views
Hi! could anyone help me to solve this problem please. Thank you.Question:An electron has a speed of 0.68 c. (a) Find the speed
1. 1 answer
2. 587 views
Hi! could anyone please help me with this problem. Thank you so much.Q: The critical angle for total internal reflection for ice
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2. 494 views
Please, anyone help me please.Q: An object is placed 17.8 cm from a first converging lens of focal length 13 cm. A second
1. 2 answers
2. 1,523 views
Hi! could any help me please, thank you.1.An object is placed 17.8 cm from a first converging lens of focal length 13 cm. A
1. 0 answers
2. 821 views
Hi! Need help please, thank you.Question:In a model AC generator, a 498 turn rectangular coil 14.0 cm by 21 cm rotates at 124
1. 0 answers
2. 584 views
Hi! could anyone help me with this question please, I really don't know how to do this at all. Thank you so much.Question:A 330
1. 1 answer
2. 798 views
Hi! could anyone help me please, I have no idea how to this at all. I try to it but, the did not get the right answer. Thank for
1. 2 answers
2. 602 views
Hi!could anyone help me please, Thank.Gas in a container is at a pressure of 1.3 atm and a volume of 1.0 m3. (a) What is the
1. 0 answers
2. 493 views
Hi, could anyone help me please, Thank.Gas in a container is at a pressure of 1.3 atm and a volume of 1.0 m3. (a) What is the
1. 4 answers
2. 685 views
Hi! Help me please, thank you so much.What mass of water at 28.0 °C must be allowed to come to thermal equilibrium with a
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2. 589 views
Hi! help me please, Thank you.A spherical steel ball bearing has a diameter of 2.540 cm at 23°C. (a) What is the diameter when
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2. 743 views
HI!can anyone help me please, just on part b.Thank you so much.A spherical steel ball bearing has a diameter of 2.540 cm at
1. 1 answer
2. 617 views
Hi! I really need help on Part B only.(a) Calculate the absolute pressure at the bottom of a freshwater lake at a depth of 28.7
1. 2 answers
2. 1,074 views
Hi! need help please thank you so much.Question:(a) Calculate the absolute pressure at the bottom of a freshwater lake at a
1. 1 answer
2. 855 views
hi,need help please.thank.A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and
1. 1 answer
2. 680 views
Need Help please.Consider the following mass distribution where the x and y coordinates are given in meters: 5.0 kg at (0.0,
1. 1 answer
2. 4,182 views
hi,need help please.thank.A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and
1. 1 answer
2. 972 views
hi,need help please.thank.A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and
1. 1 answer
2. 843 views
Help me please.Thank you so muchA uniform plank of length 2.00 m and mass 25.0 kg is supported by three ropes, as indicated by
1. 1 answer
2. 619 views
Hi,could anyone help me with this questin please. Thank you so much.some folks on your planet waant to travel to the moon.But
1. 1 answer
2. 695 views
Hi! could you help this problem please try so many time but, the answer is not correct.Question:The tires on a new compact car
1. 2 answers
2. 601 views
Hi! could you help this problem please try so many time but, the answer is not correct.Question:The tires on a new compact car
1. 1 answer
2. 652 views
Hi!Need help please.Question:A car initially traveling at 24.0 m/s undergoes a constant negative acceleration of magnitude 2.10
1. 1 answer
2. 755 views
Hi!could anyone help me please, I don't get it. Thank you so much for your help.Question:(a) What is the tangential acceleration
1. 1 answer
2. 593 views
Hi!could anyone help me with this problem please because I been trying so many time and did not get it. Greatly appreciate it.
1. 1 answer
2. 660 views
Hi! could you help me to start this problem becuase I had try so many time and did not get it right at all please. Thank you so
1. 1 answer
2. 740 views
please help me.A 5.00 g object moving to the right at +20.0 cm/s makes an elastic head-on collision with a 10.0 g object that is
1. 1 answer
2. 1,099 views
Hi! I try already but, the answer is wrong could you help me to fix it out.A sledge loaded with bricks has a total mass of 17.8
1. 1 answer
2. 748 views
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in the figure below. The
1. 1 answer
2. 1,336 views
please help, I really appriciate you help alot.Question:A 0.34 kg particle has a speed of 2.0 m/s at point A and kinetic energy
1. 1 answer
2. 513 views
Please help me I have no idea how to do this problem at all.Question:A sledge loaded with bricks has a total mass of 17.8 kg and
1. 1 answer
2. 605 views
A block of mass 12.0 kg slides from rest down a frictionless 34.0° incline and is stopped by a strong spring with k = 2.5 104
1. 0 answers
2. 628 views
Hooke's law describes a certain light spring of unstretched length 30.0 cm. When one end is attached to the top of a door frame,
1. 2 answers
2. 947 views
A 0.34 kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B.(a) What is its kinetic energy at A?
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2. 566 views
Hi! please helpA sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by a rope inclined at
1. 1 answer
2. 947 views
Find the acceleration reached by each of the two objects shown in figure below if the coefficient of kinetic friction between
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2. 1,093 views
The coefficient of static friction between the m = 3.20 kg crate and the 35.0° incline of the figure below is 0.340. What
1. 1 answer
2. 870 views
An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley
1. 1 answer
2. 758 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N and F2 = 365 N.
1. 1 answer
2. 672 views
An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley
1. 1 answer
2. 1,285 views
A 660 N cat burglar is supported by cables in the figure below. Assume the angle è of the inclined cable is 36.0°.Find
1. 1 answer
2. 1,550 views
Hi!Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N(10degree) and F2
1. 0 answers
2. 791 views
Hi!Question:Two packing crates of masses m1 = 10.0 kg and m2 = 6.50 kg are connected by a light string that passes over a
1. 4 answers
2. 921 views
Hi!An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a
1. 1 answer
2. 761 views
A projectivle is launched with an initial speed of 40m/s at an angle of 35 degree above the horizontal. The projectitile lands
1. 1 answer
2. 1,213 views
Hi!Question:The helicopter view in the fiure below shows two people pulling on a stubborn mule. Asume that F1 is 110N, and F2 si
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2. 643 views
Hi!Question: A river flows due east at 1.70m/s.A boat crosses the river from the south shore to the north shore by maintaining a
1. 1 answer
2. 806 views
Hi! Question:A ball is tossed from an upper-story window of a building.The ball is given an initial velocity of 7.80m/s at an
1. 1 answer
2. 1,570 views
Hi, could you help me pleaseQuestion: A tortoise can run with a speed of 0.12 m/s and a hare can run 20 times as fast. in a
1. 3 answers
2. 1,389 views
A ball is thrown vertically upward with a speed of +12.0m/s.A. how long the ball take to hit the ground after it reaches it
1. 3 answers
2. 995 views
For what positive numbers will the square of a number exceed twice the number?
1. 2 answers
2. 1,066 views
How do I find the domain of:y=squareroot of x^3-3x^2 ?
1. 1 answer
2. 467 views