Arturo O.

Calculus

11/26/17

Find the absolute minimum and absolute maximum values of y=x^3-12x on the interval [0,3]

I really need to learn how to do this problem. Thanks so much!

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Answers •2

Quadratic Equation

11/26/17

For what values of k will the line y=x+k be tangent to the circle x^2+y^2=25

This question is on pg 351 of the principles of mathematics 10 the section is 6.5 Interpreting Quadratic Equation Roots the answer is suppose to be 7.07 or -7.07 but I don't know the steps to get... more

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Answers •4

Torricelli, Fluid Dynamics

11/25/17

Torricelli's law.

Does the placement of the water tank affect the value of the height in the formula? For example, the water tank is 5 meters high and it was placed 10 meters above the ground. The leak on the water... more

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Answers •2

Other

11/25/17

if E=100/x2 v/m then calculate potential difference between x1=10 cm and x2=20cm

ifE=100/x2 v/m then calculate potential difference between x1=10 cm and x2=20cm

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Answers •1

Proportional Problems

11/25/17

What was the original price if the sale was 30% of and the item was $11.20.

We are doing ratios, ratio rates, proportions, and those types of things.

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Answers •2

Calculus

11/25/17

find a and b so that f(x)=ax^2+bx has a relative minimum at the point (-1,7)

I really need to learn how to do this problem. Thanks so much!

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Answers •2

Pythagorean Theorem

11/25/17

Use the Pythagorean theorem (several times) to find the exact (do not approximate) length of segment AB in the adjacent figure.

A _1_____1__ \ | / | \ | / | \ | / | 1 \| /____ | B 1

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Answers •3

Algebra

11/25/17

Find Frank’s approximate speed in still water.

Frank rows 10 km upstream and 10 km back in a total time of 3 hours. If the speed of the river is 5 km/h, then find Frank’s approximate speed in still water.

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Answers •1

How Many Pounds Of Gravel Are There?

11/25/17

In a mixture of concrete, there are two lb of cement mix for each pound of gravel. If the mixture contains a total of 81 lb of these two ingredients,

how many pounds of gravel are there?

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Answers •2

Ap Phyaica

11/25/17

AP Physics Work-Energy

An automobile engine delivers 24000 watts of power to a car’s driving wheels. If the car maintains a constant speed of 30 m/s, what is the magnitude of the retarding force acting on the car? 800 N... more

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Answers •1

Unknown

11/25/17

I am thinking of a number. I multiply it by 9 and subtract 107. I get the same answer if I multiply by 3 and subtract 11. What is my number?

I find this question hard so can someone pls help me?

Follows • 3

Answers •1

Trignometry Im2 Road Games

11/25/17

To determine the angle of elevation of a road with a percentage grade of 7%, what function would be most helpful?

Many mountainous areas have had road signs like this sign that refer to the percentage grade for the road. An 8% grade, for example means that the altitude changes by 8 feet for each 100 feet of... more

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Answers •1

Physics Wavefunctions Wave Equation

11/25/17

Determining the electron’s de Broglie wavelength, momentum, kinetic energy and speed when k = 50nm-1

A free electron has wave function Ψ(x, t) = sin(kx − ωt) Determine the electron’s de Broglie wavelength, momentum, kinetic energy and speed when k = 50nm-1 Also, I know that the... more

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Answers •1

Help On Homework Im2 Road Grades

11/25/17

To determine the percentage grade that should be put on a road sign where the angle of elevation of the road is 9 degrees, what function would be most helpful?

Many mountainous areas have had road signs like this sign that refer to the percentage grade for the road. An 8% grade, for example means that the altitude changes by 8 feet for each 100 feet of... more

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Answers •1

Physics Forces And Motion

11/24/17

How would I find acceleration from distance and velocity?

My question is: a 99 kg water skier floating in a lake is pulled from rest to a speed of 11 m/s in a distance of 25 m. What is the net force exerted on the skier, assuming his acceleration is... more

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Answers •1

Other

11/24/17

i cant get the answer

Suppose that a cyclist began a 578 mi ride across a state at the western edge of the state, at the same time that a car traveling toward it leaves the eastern end of the state. If the bicycle and... more

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Answers •1

Physics Forces And Motion

11/24/17

Finding Distance Using Mass and Force

In a grocery store, you push a 17.5 kg shopping cart with a force of 12.0 N. If the cart starts at rest, how far does it move in 3.00 s? How would I solve this? It's for an online class I'm... more

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Answers •2

Calculus

11/24/17

Given f(x)=6^5-x^2 find f'(2)

I really need to learn how to do this problem. Thanks so much!

Follows • 3

Answers •3

Physics Optics Optics And Light

11/24/17

What is the angle θ of the prism?

Here is my diagram: https://i.stack.imgur.com/WYSnE.png A parallel beam of light is incident from air at an angle a on the side PQ of a right angled triangular prism of refractive index n=√2.... more

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Answers •1

Math Physics

11/23/17

Formula for weight resistance

I want to know if there is a formula for calculating how much weight an object can hold. For example if I have a wooden plank I want to know if it could hold a 20kg object. by knowing the mass of... more

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Answers •1

#riddle

11/23/17

if I have $14 on the phone and every minute cost $0.26 how many minutes do I have on the phone

if I have $14 on the phone and every minute cost $0.26 how many minutes do I have on the phone?

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Answers •2

Math Geometry Equation

11/23/17

What transformation is represented by the rule (x, y)→(x, y+3)

What transformation is represented by the rule (x, y)→(x, y+3) ?translation 3 units downtranslation 3 units lefttranslation 3 units righttranslation 3 units up

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Answers •1

Physics Algebra

11/23/17

Physics Question

My question is "An archer shoots an arrow horizontally at a target 15 m away. The arrow is aimed directly at the center of the target, but it hits 56 cm lower. What was the initial speed of the... more

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Answers •1

Physics Wavefunctions

11/23/17

Normalizing the angular wave function Φ(φ) = e imφ

How do you normalize the angular wave function Φ(φ) = e imφ? My kindest regards!

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Answers •1

Mythology

11/23/17

Is there a bunch of mythical creatures with nine eyes, nine stingers, twelve tails or more limbs that I can use to create a story?

Im on a search for legendary creatures with nine or more limbs to create a legendary story like naruto and ghost in the shell I need your help to make it possible

Follows • 3

Answers •2

Find the absolute minimum and absolute maximum values of y=x^3-12x on the interval [0,3]

For what values of k will the line y=x+k be tangent to the circle x^2+y^2=25

Torricelli's law.

if E=100/x2 v/m then calculate potential difference between x1=10 cm and x2=20cm

What was the original price if the sale was 30% of and the item was $11.20.

find a and b so that f(x)=ax^2+bx has a relative minimum at the point (-1,7)

Use the Pythagorean theorem (several times) to find the exact (do not approximate) length of segment AB in the adjacent figure.

Find Frank’s approximate speed in still water.

In a mixture of concrete, there are two lb of cement mix for each pound of gravel. If the mixture contains a total of 81 lb of these two ingredients,

AP Physics Work-Energy

I am thinking of a number. I multiply it by 9 and subtract 107. I get the same answer if I multiply by 3 and subtract 11. What is my number?

To determine the angle of elevation of a road with a percentage grade of 7%, what function would be most helpful?

Determining the electron’s de Broglie wavelength, momentum, kinetic energy and speed when k = 50nm-1

To determine the percentage grade that should be put on a road sign where the angle of elevation of the road is 9 degrees, what function would be most helpful?

How would I find acceleration from distance and velocity?

i cant get the answer

Finding Distance Using Mass and Force

Given f(x)=6^5-x^2 find f'(2)

What is the angle θ of the prism?

Formula for weight resistance

if I have $14 on the phone and every minute cost $0.26 how many minutes do I have on the phone

What transformation is represented by the rule (x, y)→(x, y+3)

Physics Question

Normalizing the angular wave function Φ(φ) = e imφ

Is there a bunch of mythical creatures with nine eyes, nine stingers, twelve tails or more limbs that I can use to create a story?

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