Declan Nell

Other Schools
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Biography

I am a 22 year old enthusiastic and social Irish citizen who recently completed my four year degree in Trinity College Dublin in Theoretical physics achieving an average of approximately 80% (final grades are to be confirmed later this week). From this I have achieved a very strong background in both mathematics and physics. I have successfully secured funding for a PhD in Theoretical physics once again in Trinity and will be continuing on with academia for the next four years.

I enjoy teaching and have given grinds throughout the previous academic year. These were all on zoom due to covid. I have an energetic and very interactive teaching style as I believe the best way to learn is a hands on approach. I try to make the experience as fun and beneficial as possible. My grinds experience includes:
1) Grinds for the Leaving cert cycle in applied Math and Math
2) Occasional Physics and mechanics grinds for University students
3) Grinds in operations management.( This topic is out of my area of expertise however the student in question need help with basic math. )

In my free time, I enjoy watching sport, reading philosophy and socializing with my friends( pre covid).

Education

BA Theoretical Physics
Other Schools

Educator Statistics

Numerade tutor for 5 years
396 Students Helped

Topics Covered

Explore the Fascinating Dynamics of Rotational Motion
Discover the Power of Gravitation: Exploring the Science Behind It
Relativity
Discover the Fascinating World of Nuclear Physics
Explore the Fascinating World of Wave Optics - Unleash Its Potential
Exploring the Fascinating World of Quantum Physics
Discover the Fascinating World of Particle Physics Today
Exploring the Wonders of Atomic Physics: A Comprehensive Guide

Declan's Textbook Answer Videos

08:47
Physics

A street performer tosses a ball straight up into the air (event 1 ) and then catches it in his mouth (event 2 ). For each of the following observers, state whether the time they measure between these two events is the proper time or the dilated time: (a) the street performer; (b) a stationary observer on the other side of the street; $(c)$ a person sitting at home watching the performance on $T V ;$ (d) a person observing the performance from a moving car.

Chapter 29: Relativity
Declan Nell
09:58
Physics

IP The starships Picard and La Forge are traveling in the same direction toward the Andromeda galaxy. The $P$ icard moves with a speed of $0.90 \mathrm{c}$ relative to the $L a$ Forge. A person on the $L a$ Forge measures the length of the two ships and finds the same value. (a) If a person on the $P$ icard also measures the lengths of the two ships, which of the following is observed: (i) the Picard is longer; (ii) the $L a$ Forge is longer; or (iii) both ships have the same length? Explain. (b) Calculate the ratio of the proper length of the Picard to the proper length of the La Forge.

Chapter 29: Relativity
Declan Nell
12:36
Physics

IP Two rocket ships are racing toward Earth, as shown in Figure $29-31 .$ Ship $A$ is in the lead, approaching the Earth at $0.80 c$ and separating from ship $\mathrm{B}$ with a relative speed of $0.50 \mathrm{c}$. (a) As seen from Earth, what is the speed, $v,$ of ship B?
(b) If ship $A$ increases its speed by $0.10 \mathrm{c}$ relative to the Earth, does the relative speed between ship A and ship $B$ increase by $0.10 c,$ by more than $0.10 c,$ or by less than $0.10 c ?$ Explain. (c) Find the relative speed between ships $\mathrm{A}$ and $\mathrm{B}$ for the situation described in part (b).

Chapter 29: Relativity
Declan Nell
08:27
Physics

IP An inventor has proposed a device that will accelerate objects to speeds greater than $c .$ He proposes to place the object to be accelerated on a conveyor belt whose speed is $0.80 \mathrm{c}$. Next, the entire system is to be placed on a second conveyor belt that also has a speed of $0.80 \mathrm{c}$, thus producing a final speed of $1.6 \mathrm{c}$. (a) Construction details aside, should you invest in this scheme? (b) What is the actual speed of the object relative to the ground?

Chapter 29: Relativity
Declan Nell
03:14
Physics

CE Predict/Explain An uncharged capacitor is charged by moving some electrons from one plate of the capacitor to the other plate. (a) Is the mass of the charged capacitor greater than, less than, or the same as the mass of the uncharged capacitor? (b) Choose the best explanation from among the following: I. The charged capacitor has more mass because it is storing energy within it, just like a compressed spring. II. The charged capacitor has less mass because some of its mass now appears as the energy of the electric field between its plates.
III. The capacitor has the same mass whether it is charged or not because charging it only involves moving electrons from one plate to the other without changing the total number of electrons.

Chapter 29: Relativity
Declan Nell
1 2 3 4 5 ... 63

Declan's Quick Ask Videos

05:21
Physics 103

When light of wavelength 5 µm falls on a surface, it ejects photoelectrons with maximum velocity
of 6 × 105 ms-1. Calculate,
i. work function in eV, [2]
ii. the threshold frequency.

Declan Nell
07:16
Physics 101 Mechanics

Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +4.5 m/s. Particle 2 has a mass m2 and a velocity v2 = -6.5 m/s. The velocity of the center of mass of these two particles is zero. In other words, the center of mass of the particles remains stationary, even though each particle is moving. Find the ratio m1/m2 of the masses of the particles.

Declan Nell
07:26
Precalculus

See question below

Declan Nell
13:03
Calculus 3

Declan Nell
15:45
Algebra

How do i solve this question?

Declan Nell
14:09
Calculus 2 / BC

All questions

Declan Nell
1 2 3 4