Me and I
Popular questions and responses by Me and I
Physics
Am I correct? Two carts have a compressed spring between them and are initially at rest. One of the carts has total mass, including its contents, of 5.0 kg, and the other has total mass of 3.0 kg. If the 3.0 kg cart is moving at 3.0 m/s after the spring is
asked on February 3, 2014 
Algebra II
Help me with this question please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7
asked on April 15, 2014 
Physics
How much heat is required to completely boil away 0.200 kg of water (Hv = 2.26 × 10^3 kJ/kg)? (Points : 1) 4.52 × 102 kJ 2.26 × 103 kJ 4.52 × 103 kJ 1.13 × 104 kJ
asked on March 20, 2014 
Physics
Okay last question I need help with Monochromatic light of 605 nm falls on a single slit, which is located 85 cm from a screen. The first dark band appears at 5.4 mm from the center. How wide is the slit? 0.001 mm 0.050 mm 0.095 mm 1.50 mm
asked on June 13, 2014 
Algebra ll
Help please, I don't understand how to do this... Give an example of an arithmetic sequence that is found in the real world. Find the common difference and write a recursive and iterative rule for the sequence. Use one of the rules to find another term of
asked on March 19, 2014 
Physics
What is the equivalent resistance of a parallel circuit with a 5.0 kΩ resistor, a 2.5 kΩ resistor, and 10.0 kΩ resistor? A. 0.10 kΩ b. 0.83 kΩ c. 10 kΩ d. 1.4 kΩ e. 18 kΩ
asked on June 3, 2014 
Physics
Help me please I'm stuck on this question 2.In a thunderstorm at 20.0°C, Karen sees a bolt of lightning and hears the thunderclap 3.00 s later. How far from Karen did the lightning strike? Show your work.
asked on April 14, 2014 
Physics
Which of the following is an appropriate measure of electric power on a toaster label? A. 110 V B. 2.0 A C. 220 W D. 55 Ω
asked on June 3, 2014 
Physics
Help me with this please When a 20 V battery is hooked up to a 10 Ω resistor in a circuit, how much current flows through the circuit? 0.5 A 2 A 20 A 200 A
asked on May 27, 2014 
Physics
How would i solve this? A 10.0 kg ball falling at 10.0 m/!@#$%^&s a pile of feathers and comes to a complete stop in 10 s. What force does the pile of feathers exert to stop the ball? 10 N 20 N 100 N 200 N
asked on June 13, 2014 
Physics
Am i correct? If a 10.0 kW device pulls 20.0 A of current, what voltage exists across it? A. 5.0 *10^0 V B. 5.0 *10^1 V C. 5.0 *10^2 V D. 5.0 *10^3 V
asked on June 3, 2014 
Physics
One 10.0 Ω resistor is wired in series with 10.0 Ω resistors in parallel. A 45.0 V battery supplies power to the circuit. What is the total current through the circuit? A. 3.0 A B. 1.5 A C. 0.75 A D. 0.33 A
asked on June 3, 2014 
Physics
A singer moves a note up one octave. How has the sound changed? The amplitude has decreased The wavelength has increased The speed has increased The frequency has increased
asked on June 13, 2014 
Algebra ll
Consider the function f(x) = x4 – 3x3 – 7x2 + 15x + 18. Use synthetic division to divide f(x) by x – 3. Use the answer to explain whether or not x – 3 is a factor of f(x).Factor f(x) completely.
asked on June 13, 2014 
Physics
am i correct? An electric oven has a resistance of 10.0Ω and a voltage of 220 V. How much current does it draw? A. 2.2 A B. 22 A
asked on June 3, 2014 
Physics
Help please A 200.0 g copper block absorbs 2.34 × 10^3 J of heat to raise its temperature by 30.0 K. What is the specific heat of copper?
asked on March 21, 2014 
Physics, am i right?
A 10.0 Ω resistor is in parallel with a 20.0 Ω resistor and supplied by a 9.0 V battery. What is the current passing through the 20.0 Ω resistor? (Points : 1) 0.45 A 0.90 A 1.35 A
asked on May 27, 2014 
Physics
Last question i'm stuck on please help me through this. Five waves pass a dock in 2.0 s. If the waves are traveling at 10.0 m/s, then what is the wavelength of the waves?
asked on April 14, 2014 
Physics
A forklift exerts an upward force of 2.00*10^3 N on a box as it moves the box 5.00 m higher. How much work does the forklift do? 500 J 1.00*10^3 J 1.00*10^4 J
asked on June 13, 2014 
Physics
A 15.0 kΩ resistor is hooked up to a 45.0 V battery in a circuit with a switch. a.) What is the current flowing through the resistor? b.) What is the power dissipated by the resistor?
asked on June 3, 2014 
Algebra ll
Consider the system below. {4x2y=12} {3xy=3} Solve the system by using a matrix equation.
asked on June 13, 2014 
Algebra II
Am i correct? A plane intersects only one nappe of a doublenapped cone. It is neither perpendicular to the cone's axis nor parallel to its generating line. Which conic section is formed? point circle ellipse
asked on June 10, 2014 
Physics
A 10.0 Ω resistor is hooked up in series with an 8.0 Ω resistor followed by a 27.0 Ω resistor. The circuit is powered by a 9.0 V battery Calculate the equivalent resistance. Calculate the voltage drop across each resistor in the circuit.
asked on June 2, 2014 
Algebra ll
Help me please The table shows the distance and costs of flights for a given airline with the same starting destination and different ending destinations. Distance (miles) 1281 2796 790 150 3211 7810 812 210 7742 3578 1346 3214 Cost (dollars) 473 683 508
asked on May 13, 2014 
Algebra II
Help me with this, please... A ball is dropped vertically from a height of 80 meters. After each bounce, the ball reaches a maximum height equal to 60 percent of maximum height of the previous bounce. a. Write the first three terms of the sequence. Explain
asked on April 10, 2014 
Physics
Help me with this question, please How will the total voltage of a string of light bulbs in series change as you add more bulbs to the string? A. The total voltage will decrease B. The total voltage will stay the same C. The total voltage will increase d.
asked on June 3, 2014 
Algebra II
Please help me out with this The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly
asked on April 23, 2014 
Physics
Am i Correct? 2.0 cm*.044T*/.10 s= 0.88 V Each side of a square loop of wire measures 2.0 cm. A magnetic field of 0.044 T perpendicular to the loop changes to zero in 0.10 s. What average emf is induced in the coil during this change? A. 1.8 V B. 0.088 V
asked on June 10, 2014 
Physics
Am i correct? Which of the following is a reasonable power rating on an electric oven? 220 V 8.0 A
asked on May 23, 2014 
Physics
Help me understand this please You have a 2.00 kg block of lead. Lead melts at 327.5°C. CPb = 130.0 , and Hf for lead is 2.04 × 10^4 J/kg. Say you start at room temperature (25.0°C). How much heat must you transfer to melt all the lead?
asked on March 25, 2014 
Physics
I'm not really sure on this one... Am i correct? A maglev train requires which of the following? A. track and the train must have the different magnetic poles B. track and the train must have the same magnetic poles
asked on June 10, 2014 
Physics
Help please A wire carries a current of 5.2 A from east to west through a 6.0 m section of wire in the earth's magnetic field of 1 × 10^5 T at a location where the magnetic field points south. What is the magnitude of the magnetic force acting on the
asked on June 9, 2014 
Physics
Am I correct? Which statement explains why a bicycle is stable when a rider pedals quickly? (Points : 1) The angular momentum vector resists directional change.
asked on February 3, 2014 
Physics
I don't understand this question... What is the change in entropy for a system that has 250 J of heat added to it at 25°C? (Points : 1) 10 J/K 0.84 J/K 0.84 J/K 10 J/K
asked on March 20, 2014 
Physics
Guide me through this plz. A single 1,300 kg cargo train car is rolling along a train track at 2.0 m/s when 400 kg of coal is dropped vertically into it. What is its velocity right afterward? Assume a closed system. (Points : 1) 1.5 m/s 2.0 m/s 6.5 m/s
asked on February 3, 2014 
Physics
An object is 30.0 cm to the left of a convex lens with a focal length of +8.0 cm. Calculate the distance from the lens. Would it be upright or inverted?
asked on June 13, 2014 
Physics
Help please How do the dark lines of an atom's absorption spectrum relate to the bright lines of its emission spectrum? A. The bright lines are at the same energies as the dark lines. B. The dark lines are at higher energies than the bright lines. C. The
asked on June 10, 2014 
Physics
Help me with this please A 10.0 Ω resistor is in parallel with a 20.0 Ω resistor and supplied by a 9.00 V battery. What is the total current passing through the circuit? A. 0.38 A B. 0.75 A C. 1.35 A D. 6.00 A
asked on June 3, 2014 
Algebra ll
Help me with this please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10
asked on April 24, 2014 
Algebra ll
Bernardo divided one polynomial by another, as shown below. (9x29x10)/(3x+2) What is the quotient? A. 3x1 + 8/3x+2 B. 3x1 + 12/3x+2 C. 3x+5 D. 3x5
asked on June 13, 2014 
Algebra II
help please There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of the checker is recorded. Find the probability of selecting a red checker exactly 7 times in 10 selections.
asked on April 23, 2014 
Physics
am i correct? A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point? 2.0 s 5.6 s 11.2 s 21 s
asked on May 23, 2014 
Physics
Please help me go through this F = q1q2/r^2, i know this is the equation, but i don't know how to get the answer, please help. What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0
asked on May 15, 2014 
Algebra ll
How would i do this? Use the binomial theorem to expand (2x – 5y)^3
asked on April 24, 2014 
Physics
Help needed Which of the following is equivalent to one ampere? 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s
asked on May 23, 2014 
Physics
with this one i'm confused i'm not sure if it's b or d The current in a solenoid is changed from 1.1 A to 4.4 A. By what factor does the magnitude of the magnetic field inside the solenoid increase? 2 4 0.5 0.25 1.1/4.4= 0.25 0r 4.4/1.1= 4
asked on June 9, 2014 
Physics
Help me with this please A 6.0 m section of wire carries a current of 5.2 A from east to west in the earth's magnetic field of 1.0 × 10^5 T at a location where the magnetic field points south. In which direction does the magnetic force act on the wire?
asked on June 4, 2014 
American History
What was the role of the northwest ordinance and what was its effect on the banning of slavery?
asked on May 11, 2014 
Physics
I need help with my lab, it's telling me to measure the mass of cup 1, but i don't understand how to measure it... I have a digital scale does that measure mass? or is there a certain equation to measure it?
asked on March 17, 2014 
Algebra ll
Help please The center of a circle is at (5 , 1) and it has a radius of 9. What is the equation of the circle? A.(x5)^2+(y+1)^2= 81 B.(x5)^2+(y+1)^2= 3 C.(x+5)^2+(y1)^2= 81 D.(x+5)^2+(y1)^2= 3
asked on June 6, 2014 
Physics
How would i solve this? (30)(Cm)Δ+(335.5)(4.18)Δ(21)=0
asked on March 18, 2014 
Physics
Am i correct? My work 0.10/0.20= .5 = 1/2 or is it the other way around? .20/.10? Suppose a magnetic field of 0.20 T is applied to the area within a circular loop of wire. The strength of the field is then changed to 0.10 T. By what factor is the magnetic
asked on June 10, 2014 
Algebra ll
what is AB? A= 3 , 5 B = 4 2 , 8 7 this is a matrix, but it wont let me put in the brackets
asked on June 1, 2014 
Physics
(30)(Cm)Δ+(335.5)(4.18)Δ(21)=0 I need to find the specific heat of the masses, but i don't know how to, i'm currently doing a lab and these are the mass and temp. numbers that i plugged in...
asked on March 17, 2014 
Algebra II
Can anyone please teach me how to divide polynomials using long division? It's quite confusing. Like give me a problem to solve and guide me through it.
asked on February 7, 2014 
Algebra II
It has a graph but i cant paste it on here, could you guide me through plz Which is a root of f(x) = 0 with a multiplicity of 2? 4 3 3 4
asked on February 7, 2014 
Physics
I'm confused with this one, here's what i got 45.0 v/ 40.0Ω = 1.125 A is the answer b? A 10.0 Ω resistor is in parallel with a 30.0 Ω resistor and supplied by a 45.0 V battery. What is the total current drawn from the battery? 0.003 A 1.10 A 6.00 A 338
asked on May 27, 2014 
Algebra II
am i correct? 1(2x)^3 + 3(2x)^2*(5y)^1 + 3(2x)^1*(5y)^2 + 1(5y)^3 answer (2x5y)^3
asked on April 23, 2014

Algebra ll
I appreciate the help thank you, Damon
posted on June 13, 2014 
Algebra ll
thank you, Steve :)
posted on June 13, 2014 
Physics
i'm thinking it's c?
posted on June 13, 2014 
Physics
oh okay, thanks Damon :)
posted on June 13, 2014 
Physics
thank you
posted on June 13, 2014 
Algebra ll
nvm, i think i figured this one out :)
posted on June 13, 2014 
Physics
nvm i got this one
posted on June 10, 2014 
Physics
okay great, thx
posted on June 10, 2014 
Physics
okay :)
posted on June 10, 2014 
Algebra II
thank you, Steve :)
posted on June 10, 2014 
Physics
nvm i got this one, i think 5.2*6.0*.0001 .000312= 3.1*10^4 N so is this A?
posted on June 9, 2014 
Algebra ll
thank you, Damon :)
posted on June 6, 2014 
Algebra ll
so this is c?
posted on June 6, 2014 
Physics
thx, you helped me out a lot :)
posted on June 4, 2014 
Physics
thank you, Damon :)
posted on June 3, 2014 
Physics
i mean its, C :) 10,000/ 20 A = 500
posted on June 3, 2014 
Physics
10x10^3 W 10,000/ 2A = 5000 which would be D right?
posted on June 3, 2014 
Physics
thx, MathMate and Damon :)
posted on June 3, 2014 
Physics
ohh oops, i did 15/45, thank you, Damon
posted on June 3, 2014 
Physics
thx, i did not know that, so the answer is D :)
posted on June 3, 2014 
Physics
thank you :)
posted on June 3, 2014 
Physics
20/3= 6.666 9/6.666 c?
posted on June 3, 2014 
Physics
thanks :)
posted on June 3, 2014 
math
4= x  4 +4 +4 8= x
posted on June 3, 2014 
Physics
okay, thx for the help :)
posted on June 3, 2014 
Algebra ll
nvm i got this one
posted on June 1, 2014 
Algebra ll
and b = 4 7
posted on June 1, 2014 
Algebra ll
a= 3, 5 2, 8
posted on June 1, 2014 
Physics, am i right?
thank you, i actually understood how to do this from your last post on my other question.
posted on May 27, 2014 
Physics
okay, thx, i take online school and it's much harder for me
posted on May 27, 2014 
Physics
ok, thanks :)
posted on May 27, 2014 
Physics
wouldn't it be b?
posted on May 27, 2014 
Physics
nvm got this one
posted on May 23, 2014 
Physics
okay great, thank you :)
posted on May 23, 2014 
Physics
thank you
posted on May 23, 2014 
Physics
ty so much :)
posted on May 15, 2014 
Physics
(9x 10^9)/(.05m)^2, is this what i should be calculating?
posted on May 15, 2014 
Algebra ll
oh nvm srry posted wrong one i already found out how to do this one
posted on April 24, 2014 
Algebra II
so the answer is 0.0017?
posted on April 23, 2014 
Algebra II
Ok,thank you guys! :)
posted on April 23, 2014 
Algebra II
ok thank you so much for showing me how to solve this!!! :)
posted on April 23, 2014 
Physics
ok, thank you for explaining
posted on April 14, 2014