• ### Calculus help?

Sue has enough paint to paint an area 16 square inches. What are the dimensions of the largest open box (largest volume) that she can paint? Assume that the base of the box is square and there is no top.
Sue has enough paint to paint an area 16 square inches. What are the dimensions of the largest open box (largest volume) that she can paint? Assume that the base of the box is square and there is no top.
2 answers · Mathematics · 3 months ago
• ### Calculus help?

Maximize the lateral surface area of an inverted cone if V=27. Formulas: V=pi*r^2*h/3 Surface area=pi * r* sqrt of (r^2+h^2) I found that h=81/pi*r^2, but I don't know where to go after this.
Maximize the lateral surface area of an inverted cone if V=27. Formulas: V=pi*r^2*h/3 Surface area=pi * r* sqrt of (r^2+h^2) I found that h=81/pi*r^2, but I don't know where to go after this.
1 answer · Mathematics · 3 months ago
• ### Calculus help?

A sphere is expanding with time. The volume of the sphere is V=4pi*r^3/3, r(t)=t^2+2. What is the formula for the rate of change of the volume of the balloon, with respect to time?
A sphere is expanding with time. The volume of the sphere is V=4pi*r^3/3, r(t)=t^2+2. What is the formula for the rate of change of the volume of the balloon, with respect to time?
3 answers · Mathematics · 3 months ago
• ### Calculus help! Will reward best answer!?

A square with side x, is changing with time where x(t)=3t+1. What is the formula for the rate of change of the area of the square
A square with side x, is changing with time where x(t)=3t+1. What is the formula for the rate of change of the area of the square
3 answers · Mathematics · 3 months ago

Assume there is a cube with all sides equal to x. The change in x with respect to t is x(t)=2t. What is the formula for the rate of change of the volume of the cube?
Assume there is a cube with all sides equal to x. The change in x with respect to t is x(t)=2t. What is the formula for the rate of change of the volume of the cube?
3 answers · Mathematics · 3 months ago
• ### Calculus rate of change help!?

Assume there is a cube with all sides equal to x. The change in x with respect to t is x(t)=2t. What is the formula for the rate of change of the volume of the cube?
Assume there is a cube with all sides equal to x. The change in x with respect to t is x(t)=2t. What is the formula for the rate of change of the volume of the cube?
1 answer · Mathematics · 3 months ago

A. During which part of the business cycle will unemployment be highest and during which part will it be lowest? B. If the severity of business cycles were reduced, what would be the effect on each of the four types of unemployment and on the unemployment rate as a whole?
A. During which part of the business cycle will unemployment be highest and during which part will it be lowest? B. If the severity of business cycles were reduced, what would be the effect on each of the four types of unemployment and on the unemployment rate as a whole?
3 answers · Economics · 6 months ago
• ### Calculus help! Easy limit question.?

lim as x approaches infinity of 1/sin(1/x)
lim as x approaches infinity of 1/sin(1/x)
4 answers · Mathematics · 7 months ago
• ### Macroeconomics help?

Suppose Johnathan chooses to become a carpenter and becomes an expert cabinet-maker. Describe the Production Possibilities Frontier in the context of the cabinet-making company where he works. Then explain the Law of Opportunity Cost and how it applies to his activity as an expert carpenter who creates specialized kitchen cabinets.
Suppose Johnathan chooses to become a carpenter and becomes an expert cabinet-maker. Describe the Production Possibilities Frontier in the context of the cabinet-making company where he works. Then explain the Law of Opportunity Cost and how it applies to his activity as an expert carpenter who creates specialized kitchen cabinets.
Homework Help · 7 months ago
• ### Macroeconomics question! Will reward best answer ASAP!?

Caroline consider her future career path. She focuses on specialization and chooses between 2 careers: carpentry or construction. What should she think about(including opportunity costs) and create a chart that shows cost-benefit analysis. Also, decribe the production possibilities Frontier in the context of the cabinet making company where she... show more
Caroline consider her future career path. She focuses on specialization and chooses between 2 careers: carpentry or construction. What should she think about(including opportunity costs) and create a chart that shows cost-benefit analysis. Also, decribe the production possibilities Frontier in the context of the cabinet making company where she works. How does the Law of Opportunity cost apply to Caroline s activity as an expert carpenter who creates special kitchen cabinets.
1 answer · Economics · 7 months ago
• ### Economics Help!?

Scott and Martha work in a software company. Scott can make 10 schedules an hour, or he can perform 30 quality assurance checks an hour. On the other hand, Martha can make 8 schedules an hour or perform 28 quality assurance checks an hour. Who has the comparative advantage for making schedules, Scott or Martha? When you post your response, make sure... show more
Scott and Martha work in a software company. Scott can make 10 schedules an hour, or he can perform 30 quality assurance checks an hour. On the other hand, Martha can make 8 schedules an hour or perform 28 quality assurance checks an hour. Who has the comparative advantage for making schedules, Scott or Martha? When you post your response, make sure to answer these two questions: Who has the comparative advantage? What is each person's opportunity costs?
1 answer · Homework Help · 7 months ago

A magnetic field has a magnitude of B=.95T. It is directed perpendicular to a circular loop of wire that has a radius of .15m. The loop of wire rotated 90 degrees so that the magnetic field is parallel to the loop. What is the change in magnetic flux through the loop?
A magnetic field has a magnitude of B=.95T. It is directed perpendicular to a circular loop of wire that has a radius of .15m. The loop of wire rotated 90 degrees so that the magnetic field is parallel to the loop. What is the change in magnetic flux through the loop?
2 answers · Physics · 11 months ago

A transformer has 300,000 windings in its primary coil and uses 10,000V AC input. a) how many windings are needed to produce an output of 120 C AC? Is this a step up or down transformer? b) Why do transformers only work with AC currents and not DC currents?
A transformer has 300,000 windings in its primary coil and uses 10,000V AC input. a) how many windings are needed to produce an output of 120 C AC? Is this a step up or down transformer? b) Why do transformers only work with AC currents and not DC currents?
Physics · 11 months ago

A battery with 24V is wired parallel with 3 resistors. R1=10 ohms R2=12 ohms and R3=15 ohms. Find the equivalent resistance and total current. Find the current flow and voltage drop through each resistor.
A battery with 24V is wired parallel with 3 resistors. R1=10 ohms R2=12 ohms and R3=15 ohms. Find the equivalent resistance and total current. Find the current flow and voltage drop through each resistor.
1 answer · Physics · 11 months ago

What is the electric potential difference when an electron is moved 10cm in the electric field. The potential energy changes -20J.
What is the electric potential difference when an electron is moved 10cm in the electric field. The potential energy changes -20J.
1 answer · Physics · 11 months ago

The reading is attached. 1. The last sentence of this passage is A. summary of the main idea B. example that shows hypothesis C. Transition to new subject D. description of state of mind E. closing event 2. The authors uses the word "something" in the first sentence because: A. The author wants to engage the reader with ambiguity B.... show more
The reading is attached. 1. The last sentence of this passage is A. summary of the main idea B. example that shows hypothesis C. Transition to new subject D. description of state of mind E. closing event 2. The authors uses the word "something" in the first sentence because: A. The author wants to engage the reader with ambiguity B. The author is imprecise C. The author has an academic and obscure style D. The author doesn't know what "something" is E. The author is trying to argue that "something" can't be defined 3. The main oppositions are between A. Faith and doubt, good and evil B. beneficial and harmful, faith and doubt C. Love and hate, certain and uncertain D. Reflection and certainty, religion and secularism E. Certain and uncertain, beneficial and harmful 4. This passage contains everything EXCEPT A. evidence to prove hypothesis B. Objective tone C. progression of ideas logically D. First person perspective D. Argument about unusual topic The main topic is: A. religious disillusionment B. A path to find a beneficial way to live life C. Argument about nature of truth D. Argument about the nature of good E; treatise about wisdom
2 answers · Homework Help · 12 months ago
• ### Help with quick physics problem. Will chose best answer ASAP.?

A 1.55 kg block of silver at 20 degrees C. How much heat energy is needed to melt the block if the Hf is 111Kj/kg and if silver melts at 962 degrees C. Please show work. This is what I have done so far, but I don't think it's right. q=m*hf q=1.55kg*111Kj/kg I feel like I need to also do something else, but I don't know what.
A 1.55 kg block of silver at 20 degrees C. How much heat energy is needed to melt the block if the Hf is 111Kj/kg and if silver melts at 962 degrees C. Please show work. This is what I have done so far, but I don't think it's right. q=m*hf q=1.55kg*111Kj/kg I feel like I need to also do something else, but I don't know what.
3 answers · Physics · 12 months ago

A 1.55 kg block of silver is at 20 degrees C. Silver melts at 962 degrees C. If Hf=111KJ/kg), how much heat energy is needed to melt the silver?
A 1.55 kg block of silver is at 20 degrees C. Silver melts at 962 degrees C. If Hf=111KJ/kg), how much heat energy is needed to melt the silver?
1 answer · Physics · 12 months ago
• ### PHYSICS HELP!!!! Will award the best answer!?

A spring pop toy has spring constant that is 50 N/m. In order to pop the toy off surfaces, the spring has to be compressed by .055m. What is the elastic potential energy when the spring is compressed? What is the speed of the toy when it first pops if it is .010 kg. Please show work so I can further understand this topic.
A spring pop toy has spring constant that is 50 N/m. In order to pop the toy off surfaces, the spring has to be compressed by .055m. What is the elastic potential energy when the spring is compressed? What is the speed of the toy when it first pops if it is .010 kg. Please show work so I can further understand this topic.
1 answer · Physics · 1 year ago
• ### Physics collision help! Will award best answer!?

A .260 kg car that is moving at 1.70 m/s crashes with a .430 car. What is the total kinetic energy after the crash if it is considered elastic? What is the final velocity of both of the cars? What is the total kinetic energy after the crash if it is considered inelastic? I am trying to understand how to do this, so if you could show your work,it... show more
A .260 kg car that is moving at 1.70 m/s crashes with a .430 car. What is the total kinetic energy after the crash if it is considered elastic? What is the final velocity of both of the cars? What is the total kinetic energy after the crash if it is considered inelastic? I am trying to understand how to do this, so if you could show your work,it would be much appreciated! Thanks!
3 answers · Physics · 1 year ago