Numerade

Questions asked

BEST MATCH

Consider an electric wire of circular cross section with radius R and electrical conductivity k, ohm$^{-1}$ cm$^{-1}$. Through this wire there is an electric current with current density I amp/cm$^2$. The rate of heat production per unit volume from electrical dissipation is given by the expression Se=I$^2$/K$_e$. Find the equation for temperature rise from wire axis using shell energy balance.

View Answer

BEST MATCH

\int_0^((1)/(9)) (108x)/(\sqrt(1-9x^(2)))dx

View Answer

BEST MATCH

true or false The three main regions of the spine are the lumbar, thoracic, and cervical regions

View Answer

BEST MATCH

Determine a 95% Confidence Interval estimate for the population variance if sample variance is is and n=25.

View Answer

BEST MATCH

Question 7. Let \{X_n\} be i.i.d. (independent and identically distributed), with $X_n \sim$ Uniform$[0, 1]$. Let $Y_n = \frac{1}{n} \sum_{i=1}^n X_i$. Find a number $m$ such that $Y_n$ converges in probability to $m$.

View Answer

BEST MATCH

Problem 32.36 Constants Periodic Table Part A The speed of light in a certain substance is 95% of its value in water. What is the index of refraction of that substance? Express your answer using two significant figures. n =

View Answer

BEST MATCH

Part 1 For the following parametrization $y(t) = e^{it}, t \in [0,2\pi]$ calculate the following integral $\int_y (2z + 1)dz$ Part 2 For the following parametrization $y(t) = 1 + it, t \in [0,1]$ calculate the following integral $\int_y (2z + 1)dz$ Part 3 We know that F(z) = z^2 + z F'(z) = 2z + 1 y(t) = 1 + it, t \in [0,1] a = y(0) = 1 + i*0 = 1 b = y(1) = 1 + i*1 = 1 + i Find F(b) - F(a)

View Answer

BEST MATCH

3. You should be able to tell whether the following statements are true, false or uncertain and also be able to justify your answer. (i) Trade deficits usually reflect high investment. (ii) Budget deficits cause trade deficits. (iii) The only way a country can eliminate a trade surplus is via a real appreciation. (iv) If the trade deficit is zero, the domestic demand for goods and the demand for domestic goods are equal.

View Answer

BEST MATCH

thermodynamics heat exchangers are devices where two moving fluid streams exchange heat without mixing these devices can be conveniently analysed as steady flow device heat exchanges are widely used in various industries and they come in various describe the possible heat exchanger design in which it can be analysed as non steady flow devise

View Answer

BEST MATCH

For this experiment, you will add a capacitor in parallel with the load resistor and view its effect on the output waveform. TX1 01 To Oufiet 120v Visec1 Vsec2 02 RL 15 10 C1 10uf Assemble the circuit shown above. Again, be sure the diodes are connected with the proper polarity. Use dual-channel mode to display one of the transformer's secondary voltages (VSECI or VSEC2) and the output waveform concurrently on the oscilloscope. Sketch the waveforms approximately to scale using C = 10µF. Vseci (1) = Vsec2(t) Vout(t), C=10µF X-Axis = 2 msec/div Y-Axis = 10 V/div X-Axis = 2 msec/div Y-Axis = 10 V/div Question 3.2: Does the output resemble a DC waveform? In terms of energy storage, why does this occur?

View Answer

daniel a.