The distance between the forces is given by the Coulombs law through the use of the formula F=kq1q2/r2.0.1newtons = 8.99*109*3.2*10-6*7.7*10-7/r2 R= 555.78 Answer to question 3 • Potential difference between the two plates is equal to velocity which is equal to 6.0*106m/s • Force = mass *acceleration = 1.4*10-13*6.0*106 = -8254 nektons The speed of the particles are computed by the formula V=ED. This is equal to 8.5*10-6*0.15. This is equal to 84.1 Answer to question 4 Voltage = current *resistance. This implies that in this case while V is 5.0 and resistance is 1.0*103, current will be equal to 5/1.0*103, = 500 amps B the direction of the conventional current provides the electric charge movement from the positive side of the battery to its negative side as in indicated in the diagram below Answer to question 5 • This section focuses on the equivalent resistance of a circuit. The equivalent resistance will be equal to (5.0*102+1.00*103)2.
As a reverse DC voltage is applied across the diode, its capacitance varies. The higher the voltage, the less the capacitance. This is due to depletion layers of the diode junction, but we wont get into details here. This variable capacitor in conjunction with the stub, which is actually an inductor (coil) is the basis of our voltage controlled oscillator! As the voltage increases across D5, the frequency of oscillation increases.
Trigonometry Problem #1 The electricity supplied to your house is called alternating current (AC) because the current varies sinusoidally with time. The voltage which causes the current to flow also varies sinusoidally with time. Bothe the current and the voltage have a frequency of 60 cycles per second which corresponds to a period of 1/60 of a second, but current and voltage have different phase shifts. We will be determining equations for the voltages and the current as functions of time based upon the equationf(t)=Acos[B(x-C)]+D. Under the assumption that current and voltage are both sinusoidal functions of time (t, in seconds) and both have the same frequency of 60 cycles per second (period=1/60), let C be the current in Amperes (Amps) with a maximum current of 5 Amps at zero seconds (t=zero).
With Magnetic force no movement is necessary in contrast to electric force. C. The last part requires you to compare and contrast motors and Generators, C) In a generator the interaction of moving objects creates a magnetic field and that field generates the electric power. An electric motor uses energy created by a magnetic field. FRI. POST Thread
According to the First Law of Thermodynamics, energy cannot be created or destroyed. There-fore, energy is not really lost, but may be released in another form such as heat or light. In this form, the energy may be partly unusable. (p. 28) 25. a. Ca, b. C, c. H, d. Fe, e. N, f. 0, g. K, h. Na (p. 29) 26. a.
B, C and D Electrical Circuit – an electrical device that provides a path for electrical current to flow Frequency – The cycles per second of alternating current, measured in Hertz Amplitude – the maximum difference of an alternating electric current or potential from the average value Phrase – is a position of a point in time on a waveform cycle Bit time – the time it takes for one bit to be ejected from a network interface card at a standard speed Encoding Scheme – a system used by computers to represent data as characters Unshielded twisted-pair – The word unshielded refers to the fact that UTP cables have no added shielding materials to prevent EMI problems Core- The light source on one end of the cable shines light into the core Cladding- surrounds the core, for the entire length of the cable, and reflects the light into the core Radio waves- work well for networking because as a waveform, radio waves can be changed (modulated) over time to send data. Wireless WAN- used often in mobile phone network/mobile network Wireless LAN- don’t not use cables and do use radio waves to send data Access Point – all user devices communicate only through the AP, most WLAN’s use this wireless
e. is one-half. 3. The gas phase reaction A + B C has a reaction rate which is experimentally observed to follow the relationship rate = k[A]2[B]. Which one of the following would affect the value of the specific rate constant, k? a. decreasing the temperature b. changing the concentration of A c. changing the concentration of B d. changing the concentration of C e. letting the reaction go on for a long time 4.
D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true. 8. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products.
12 C. 5 D. 30 _____ 16. A voltaic cell has E0cell = +1.00 V. The cell reaction A. is not spontaneous B. has K = 1 C. has (G0 = 0 D. has a negative (G0 _____ 17. Which energy conversion takes place in a galvanic cell? A. electrical to chemical B. chemical to
E1. Write an equation to show the equilibrium that exists between NaI(s) and Na+(aq) and I–(aq). AE1. NaI(s) ( Na+(aq) + I–(aq) E2. a Sketch a graph of the change in the radioactivity of the solution over time.