Dheeraj Sharma

University of Maryland - College Park
Teaching Assistant

Biography

i am having a teaching experience of more than 15 years and i have worked on various online education platforms. many of my students have reached their dreams.finally i should thank numerade for providing such a great platform which helps students in making their future and educators to explore their knowledge.

Education

BS Mathematics
University of Maryland - College Park

Educator Statistics

Numerade tutor for 5 years
2343 Students Helped

Topics Covered

Understanding Moment Impulse and Collisions for Better Physics
Mastering the Rotation of Rigid Bodies: Tips & Techniques
Explore the Fascinating Dynamics of Rotational Motion
Discovering the Fundamentals: Newton's Laws of Motion Explained
Mastering Newton's Laws: Tips for Applying Them Effectively
Find Your Dream Job: Discover the Best Work Opportunities
Unlock the Power of Kinetic Energy: Boost Your Efficiency Today
Unlocking the Power of Potential Energy: Discover the Benefits
Understanding Temperature and Heat: A Comprehensive Guide
Understanding the First Law of Thermodynamics: Key Concepts
Understanding the Second Law of Thermodynamics: Key Principles
Understanding Equilibrium and Elasticity: A Comprehensive Guide
Discover the Power of Gravitation: Exploring the Science Behind It
Introduction and Vectors
Motion in 2d or 3d
Mastering Motion: Achieving Efficiency Along a Straight Line
Save Energy and Money with Effective Conservation Techniques
Explore the Fascinating World of Periodic Motion - Learn More Today!
Exploring the Fascinating World of Mechanical Waves
Discover the Science of Sound and Hearing: Your Guide to Better Listening
Exploring the Fascinating World of Quantum Physics
Unlocking the Secrets of Thermal Properties: Understanding Matter
Kinetic Theory Of Gases
Introduction to Vector Calculus

dheeraj's Textbook Answer Videos

01:20
Objective Physics for NEET

The centre of mass of a body
(a) lies always at the geometrical centre
(b) lies always inside the body
(c) lies always outside the body
(d) may lie within or outside the body

Chapter 6: Centre of Mass and Collision
Dheeraj Sharma
01:37
Objective Physics for NEET

If the origin of co-ordinate system lies at the centre of mass, the sum of the moments of the masses of the system about the centre of mass
(a) may be greater than zero
(b) may be less than zero
(c) may be equal to zero
(d) is always zero

Chapter 6: Centre of Mass and Collision
Dheeraj Sharma
01:06
Objective Physics for NEET

The centre of mass of a system of particles does not depend on
(a) masses of the particles
(b) internal forces acting on the particles
(c) position of the particles
(d) relative distances between the particles

Chapter 6: Centre of Mass and Collision
Dheeraj Sharma
02:10
Objective Physics for NEET

The position of centre of mass of a system consisting of two particles of masses $m_{1}$ and $m_{2}$ separated by a distance $L$ apart, from $m_{1}$ will be
(a) $\frac{m_{1} L}{m_{1}+m_{2}}$
(b) $\frac{m_{2} L}{m_{1}+m_{2}}$
(c) $\frac{m_{2}}{m_{1}} L$
(d) $\frac{L}{2}$

Chapter 6: Centre of Mass and Collision
Dheeraj Sharma
02:41
Objective Physics for NEET

A system consists of mass $M$ and $m(\ll \angle M)$. The centre of mass of the system is
(a) at the middle
(b) nearer to $M$
(c) nearer to $\bar{m}$
(d) at the position of larger mass

Chapter 6: Centre of Mass and Collision
Dheeraj Sharma
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dheeraj's Quick Ask Videos

08:13
Physics 101 Mechanics

A 3.00-mm-long, 280-N uniform rod at the zoo is held in a horizontal position by two ropes at its ends (see Figure 1). The left rope makes an angle of 150° with the rod, and the right rope makes an angle θ with the horizontal. An 80-N howler monkey (Alouatta seniculus) hangs motionless 0.50 mm from the right end of the rod as he carefully studies you.

Calculate the tension in the right rope.
Express your answer using two significant figures.

Calculate the angle θ.
Express your answer using two significant figures.

Dheeraj Sharma
07:05
Physics 101 Mechanics

A 62.0 kg block sits on a frictionless tabletop. A 23.0 kg cube sits on top of the block. The cube is being pulled to the right by a horizontal force with a 150 N magnitude (Figure 6-39). The coefficient of static friction between the block and the cube is 0.400 and the coefficient of kinetic friction is 0.250. Assume all the quantities have 3 significant digits.
(a) Is the static friction between the two blocks strong enough to cause them to stick together when the horizontal force acts?
blank1 - Word Answer
(yes/no)
(b) What is the acceleration of the cube?
blank2 - Numeric Answer
m/s^2 to the right.
(c) What is the acceleration of the block?
blank3 - Numeric Answer
m/s^2 to the right.

Dheeraj Sharma
03:12
Intro Stats / AP Statistics

A radar unit is used to measure speeds of cars on a motorway.
The speeds are normally distributed with a mean of 90 km/hr and a
standard deviation of 10 km/hr. What is the probability that a car
picked at random is travelling at more than 100 km/hr?

Dheeraj Sharma
02:54
Physics 101 Mechanics

A bicycle tire whose volume is 4.1 x 10-4 m3 has a temperature
of 297 K and an absolute pressure of 4.27 x 105 Pa. A cyclist
brings the pressure up to 7.33 x 105 Pa without changing the
temperature or volume. How many moles of air must be pumped into
the tire?

Dheeraj Sharma
03:09
Physics 101 Mechanics

A baseball pitching machine works by rotating a light and stiff rigid rod about a horizontal axis until the ball is moving toward the target. Suppose a 144g baseball is held 87cm from the axis of rotation and released at the major league pitching speed of 81mph.
What is the ball's centripetal acceleration just before it is released? m/s^2.
Express your answer using two significant figures.
What is the magnitude of the net force that is acting on the ball just before it is released? N.
Express your answer using two significant figures.

Dheeraj Sharma
05:56
Physics 101 Mechanics

Initially, a swift-moving hawk is moving due west (in the -x direction) with a speed of 55 m/s; 5.0 s later it is moving due north (in the +y direction) with a speed of 30 m/s.

(a) What is the direction of Δv during this 5.0 s interval?
(b) What is the direction of av during this 5.0 s interval?

Dheeraj Sharma
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