JR

John Reband

University of Illinois at Urbana-Champaign
Teaching Assistant

Biography

I have a BS in Aerospace Engineering and an MS in Electrical Engineering. My favorite subjects are calculus and physics. I have been tutoring since high school so I hope I can help you with your studying

Education

MS Electrical Engineering
University of Illinois at Urbana-Champaign

Educator Statistics

Numerade tutor for 4 years
22 Students Helped

Topics Covered

Integration
Mastering Integration Techniques for Optimal Results

John's Textbook Answer Videos

1

John's Quick Ask Videos

04:08
Physics 101 Mechanics

What is resonance?
Provide three examples where resonance is what we design
to accomplish.
Provide three examples where resonance is what we design to
avoid.
01:58
Physics 101 Mechanics

For an ice cube physics lab, letting the cube slide down the
aluminum foil ramp:
3. List all factors that would not allow a pure transformation
of gravitational potential energy to kinetic energy.
03:15
Physics 101 Mechanics

v = vo + at
x = xo + vot + (1/2)at^2
v^2 = vo^2 + 2a(x - xo)
Two cars which are separated by 2.03 km are moving in the same direction. The car in front is moving at a constant velocity of 45.06 km/hr, while the second car is moving at a constant velocity of 59.75 km/hr. Determine the distance (in km) covered by the second car at the moment it overtakes the first car?
01:44
Physics 101 Mechanics

A whistle you used to call your hunting dog has a frequency of 21 kHz, but your dog is ignoring it. You suspect the whistle may not be working, but you can't hear sounds above 20 kHz. To test it, you ask a friend to blow the whistle and hop on his moped. In which direction should he ride (toward or away from you) to know if the whistle is working? Explain in words.
01:49
Physics 101 Mechanics

Masses are distributed in the XY-plane as follows: 10 kg at (2.0, 6.0) m, 4.0 kg at (2.0, 0.0) m, and 6.0 kg at (0.0, 3.0) m. What is the y-coordinate of the center of gravity of this system of masses?
4.6 m
1.4 m
2.3 m
3.9 m
04:14
Physics 101 Mechanics

A circuit diagram consists of two batteries, ε₁ and ε₂ which are connected to four resistors is shown in Figure 3. The values of resistance are R₁ = 20 Ω, R₂ = 15 Ω and R₃ = R₄ = 10 Ω. Given ε₂ = 10 V and the potential difference, Vₐ - Vᵇ = 3.50 V, determine

i) the currents, I₁, I₂ and I₃ in the circuit, and
ii) the value of ε₁.
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