Integrated Concepts (a) Estimate the years 1hat1he deuterium fuel in the oceans could supply the energy' needs of the world. Assume world energy consumption to be ten times that of the United States which is 8 × 10 19 J / y and the deuterium in the oceans could be converted to energy with an efficiency of 32%. You must estimate or look up the amount of water in the oceans and take the deuterium content to be 0.015% of natural hydrogen to find the mass of deuterium available. Note that approximate energy yield at deuterium is 3.37 × 10 14 J/kg . (b) Comment on how much time this is by any human measure. (It is not an unreasonable result, only an impressive one.)
Integrated Concepts (a) Estimate the years 1hat1he deuterium fuel in the oceans could supply the energy' needs of the world. Assume world energy consumption to be ten times that of the United States which is 8 × 10 19 J / y and the deuterium in the oceans could be converted to energy with an efficiency of 32%. You must estimate or look up the amount of water in the oceans and take the deuterium content to be 0.015% of natural hydrogen to find the mass of deuterium available. Note that approximate energy yield at deuterium is 3.37 × 10 14 J/kg . (b) Comment on how much time this is by any human measure. (It is not an unreasonable result, only an impressive one.)
(a) Estimate the years 1hat1he deuterium fuel in the oceans could supply the energy' needs of the world. Assume world energy consumption to be ten times that of the United States which is
8
×
10
19
J
/
y
and the deuterium in the oceans could be converted to energy with an efficiency of 32%. You must estimate or look up the amount of water in the oceans and take the deuterium content to be 0.015% of natural hydrogen to find the mass of deuterium available. Note that approximate energy yield at deuterium is
3.37
×
10
14
J/kg
.
(b) Comment on how much time this is by any human measure. (It is not an unreasonable result, only an impressive one.)
A planar double pendulum consists of two point masses \[m_1 = 1.00~\mathrm{kg}, \qquad m_2 = 1.00~\mathrm{kg}\]connected by massless, rigid rods of lengths \[L_1 = 1.00~\mathrm{m}, \qquad L_2 = 1.20~\mathrm{m}.\]The upper rod is hinged to a fixed pivot; gravity acts vertically downward with\[g = 9.81~\mathrm{m\,s^{-2}}.\]Define the generalized coordinates \(\theta_1,\theta_2\) as the angles each rod makes with thedownward vertical (positive anticlockwise, measured in radians unless stated otherwise).At \(t=0\) the system is released from rest with \[\theta_1(0)=120^{\circ}, \qquad\theta_2(0)=-10^{\circ}, \qquad\dot{\theta}_1(0)=\dot{\theta}_2(0)=0 .\]Using the exact nonlinear equations of motion (no small-angle or planar-pendulumapproximations) and assuming the rods never stretch or slip, determine the angle\(\theta_2\) at the instant\[t = 10.0~\mathrm{s}.\]Give the result in degrees, in the interval \((-180^{\circ},180^{\circ}]\).
What are the expected readings of the ammeter and voltmeter for the circuit in the figure below? (R = 5.60 Ω, ΔV = 6.30 V)
ammeter
I =
simple diagram to illustrate the setup for each law- coulombs law and biot savart law
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.