Mahnoor Khan

Boston University
Teacher

Biography

I did all of my degrees with really good marks and I received many scholarships for my exceptional performance through out my educational life. I have been teaching mathematics for about three years now. In addition to that I have 3 years experience of tutoring. I have good communication and time management skills.

Education

BS Mathematics
Boston University

Educator Statistics

Numerade tutor for 5 years
355 Students Helped

Topics Covered

Breaking Limits: Unlock Your Potential with Our Expert Solutions
Exploring the World of Derivatives: A Comprehensive Guide
Differential Equations Made Simple: Expert Tips & Resources
Mastering Second Order Differential Equations: Tips and Techniques
Unlock the Power of Kinetic Energy: Boost Your Efficiency Today
Unlocking the Power of Potential Energy: Discover the Benefits
Introduction to Combinatorics & Probability: Understanding the Basics
Unlocking Insights with Descriptive Statistics: A Comprehensive Guide
Unlocking the Power of Experimentation: A Guide to Success
Maximizing Accuracy with Effective Sampling and Data Analysis
Linear Regression & Correlation: Analyzing Data Relationships
Exploring Probability Topics: From Basics to Advanced Strategies

Mahnoor's Textbook Answer Videos

09:57
Elementary Differential Equations and Boundary Value Problem

(a) Draw a direction field for the given differential equation. How do solutions appear to behave as $t$ becomes large? Does the behavior depend on the choice of the initial value a? Let $a_{0}$ be the value of $a$ for which the transition from one type of behavior to another occurs. Estimate the value of $a_{0}$.
(b) Solve the initial value problem and find the critical value $a_{0}$ cractly.
(c) Describe the behavior of the solution corresponding to the initial value $a_{0}$.
$$
y^{\prime}-\frac{1}{2} y=2 \cos t, \quad y(0)=a
$$

Chapter 2: First Order Differential Equations
Section 1: Linear Equations with Variable Coefficients
Mahnoor Khan
09:13
Elementary Differential Equations and Boundary Value Problem

The population of mosquitoes in a certain area increases at a rate proportional to the current population and, in the absence of other factors, the population doubles each week. There are 200,000 dollar mosquitoes in the area initially, and predators (birds, etc, ) eat 20,000 dollar mosquitoes/day. Determine the population of mosquitoes in the area at any time.

Chapter 2: First Order Differential Equations
Section 3: Modeling with First Order Equations
Mahnoor Khan
02:45
Elementary Differential Equations and Boundary Value Problem

determine the longest interval in which the given initial value problem is certain to have a unique twice differentiable solution. Do not attempt to find the solution.
$$
t y^{\prime \prime}+3 y=t, \quad y(1)=1, \quad y^{\prime}(1)=2
$$

Chapter 3: Second Order Linear Equations
Section 2: Fundamental Solutions of Linear Homogeneous Equations
Mahnoor Khan
02:06
Elementary Differential Equations and Boundary Value Problem

determine the longest interval in which the given initial value problem is certain to have a unique twice differentiable solution. Do not attempt to find the solution.
$$
(t-1) y^{\prime \prime}-3 t y^{\prime}+4 y=\sin t, \quad y(-2)=2, \quad y^{\prime}(-2)=1
$$

Chapter 3: Second Order Linear Equations
Section 2: Fundamental Solutions of Linear Homogeneous Equations
Mahnoor Khan
02:46
Elementary Differential Equations and Boundary Value Problem

determine the longest interval in which the given initial value problem is certain to have a unique twice differentiable solution. Do not attempt to find the solution.
$$
t(t-4) y^{\prime \prime}+3 t y^{\prime}+4 y=2, \quad y(3)=0, \quad y^{\prime}(3)=-1
$$

Chapter 3: Second Order Linear Equations
Section 2: Fundamental Solutions of Linear Homogeneous Equations
Mahnoor Khan
1 2 3 4 5 ... 58

Mahnoor's Quick Ask Videos

07:14
Physics 101 Mechanics

You are a member of an alpine rescue team and must get a box of supplies, with mass 2.60 kg , up an incline of constant slope angle 30.0 ° so that it reaches a stranded skier who is a vertical distance 2.70 m above the bottom of the incline. There is some friction present; the kinetic coefficient of friction is 6.00×10−2. Since you can't walk up the incline, you give the box a push that gives it an initial velocity; then the box slides up the incline, slowing down under the forces of friction and gravity. Take acceleration due to gravity to be 9.81 m/s² .

Part A

Use the work-energy theorem to calculate the minimum speed v that you must give the box at the bottom of the incline so that it will reach the skier.

Express your answer numerically, in meters per second.

Mahnoor Khan
04:55
Physics 101 Mechanics

Which of the following statements correctly describes the behavior of magnets?
Like poles attract each other, and unlike poles repel each other.
Like poles repel each other, and unlike poles attract each other.
Both like and unlike poles can attract and repel each other depending on the surrounding materials.
none of the above
What do physicists call large groups of atoms whose net spins are aligned because of strong coupling between neighboring atoms?
Magnetic zones
Magnetic regions
Magnetic sectors
Magnetic domains
Which of the following statements about magnetic fields, B, is not true?
Magnetic fields are vector quantities.
Magnetic fields have both magnitude and direction.
Magnetic field strength increases as the distance from the magnetic source increases.
Magnetic fields are regions in which magnetic forces can be detected.
How is the direction of a magnetic field, B, defined at any location?
the direction toward which the south pole of a compass needle points
the direction toward which the north pole of a compass needle points
the direction that is parallel to the imaginary magnetic field lines
the direction that is perpendicular to Earth's magnetic field
Since more magnetic field lines cross the area that is near the pole of a magnet, what does this indicate about the magnetic field strength in that location?
It is stronger.
It is weaker.
It is entering the magnet.
It is leaving the magnet.

Mahnoor Khan
06:02
Physics 101 Mechanics

Many physical properties, such as force and mass, cannot be measured directly. Rather, some other physical property is measured and the desired physical property is computed from the results. For example, a bathroom scale does not actually measure mass or "weight," but rather the compression distance of a spring. The numerical values on the scale are calibrated from the compression distance using basic physics principles such as Newton's second law.

Coefficients of friction cannot be measured directly. In this problem, we are going to learn how we can indirectly measure the coefficient of kinetic friction between two surfaces by directly measuring the expansion of a spring.

Consider a 5.45 kg block that is dragged by a spring on a (relatively) frictionless horizontal surface at constant velocity. Suppose the block reaches a rough patch and the spring stretches by 9.25 cm . Compute the coefficient of kinetic friction ???? between the block and the rough patch if the spring has a force constant of 172.0 N/m .

Mahnoor Khan
07:02
Physics 101 Mechanics

Which statements are true concerning Newton's law of gravitation?

The gravitational force is an attractive force.

The gravitational force between the Earth and a person is constant, no matter how high the person is above the surface of the Earth.

The gravitational force on a satellite is greater at an altitude of 1000 km above the Earth than at an altitude of 500 km.

A large and a small object are gravitationally attracted to each other. The magnitude of the gravitational force on the larger object is less than on the smaller.

The gravitational force is related to the mass of each object.

Mahnoor Khan
04:51
Physics 101 Mechanics

The Ark of the Covenant is described as a chest of acacia
wood 2.5 cubits in length and 1.5 cubits in width and height.
Given that a cubit is equivalent to 17.7 in., find the volume of
the ark in cubic feet.

Mahnoor Khan
1