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Positive point-charges of +36.0 mC (Micro C) are fixed at two of the vertices of an equilateral triangle with sides of 3.30 m, located in vacuum. Determine the magnitude of the E-field at the third
If the wavelength of a maximum intensity decreases from 1840nm to 1560nm as the bulb's voltage is increased, by how many celcius does the filament temperature increase
You are part of a searchand- rescue mission that has been called out to look for a lost explorer. What minimum speed must the rocket have just before impact in order to save the explorer%u2019s life
Determine the force acting on an electron moving at 2.5 x 10^5 meters per second when it enters a magnetic field perpendicular to its direction of motion
What is the hydronium-ion concentration of a solution formed by combining 700. mL of 0.19 M HCl with 300. mL of 0.52 M NaOH at 25ºC
Calculate the percent ionization of hypobromous acid (HBrO) in solutions of each of the following concentrations (Ka = 2.5e-09.) (a) 0.135 M % (b) 0.583 M % (c) 0.601 M %
If the mass is suspended by a spring M = 200g, What is the value of the spring constant of the spring
From your balanced equation what is the theorectical yield of calium carbonate. Na2CO3(aq) + CaCl2.2H2O(aq) => CaCO3(s) + 2 NaCl(aq) + 2 H2O(l)
An arrow is shot from the top of a castle wall. It hits the ground 543 m away from the base of the wall with a velocity of 79.0 m/s at an angle of 29.7 degrees below the horiztonal
A 11.0 cm -diameter compressed-air tank is 70.0 cm tall. The pressure at 30.0 degrees C is 130 atm. How many moles of air are in the tank
Rank cyclohexanol,tetrahydropyran-3-ol,tetrahydropyran-2-ol,and 2-cyclohexen-1-ol based on their SN1 reactivity. They all form secondary carbocations, correct? How does the oxygen affect their SN1 r
A satellite moves in a circular orbit around Earth at a speed of 5918 m/s? Determine the period of the satellite's orbit
A sample consisting offive molecules has a total energy 5£. Each molecule is able to occupy states of energy j£,with j= 0,1,2,···,oo. (a) Calculate the weight of the
A transformer has 5.00 E4 turns in its primary coil and 7.00 E3 turns in its secondary coil. find the rms current in the primary coil
2.90 mol of gas is at a temperature of -180 C and fills a 3.90 L container. What is the gas pressure
calculate the temperature of the solution after the CaCl2 dissolves. (Assume no heat is lost to the container or the surroundings and the specific heat of the solution is the same as that of water.)
A circular coil of wire with 70.0 Loops and a radius of 0.250 m is placed in a magnetic field of 10.0 T and oriented so that the coil is perpendicular to the field. Find the maximum power developed
You put a diode in a microelectronic circuit to protect the system in case an untrained person installs the battery backward. what would be the magnitude of the current in the diode
What is the strongest Bronsted-Lowry acid in the chemical reaction shown below. 2 HNO3 (aq) + Ba(OH)2 (aq) ---> Ba(NO3)2 (aq) + 2 H2O (l) a) HNO3 b) Ba(OH)2 c) Ba(NO3)2 d) H2O
The track is 10.00 cm wide, 5.00 m long, and 2.78 m high, and is solid. The runway is cut such that it forms a parabola by the equation y = (x - 5)2 / 9
The generator at a power plant produces AC at 24000 V. A transformer steps this up to 345,000 V for transmission over power lines. how many turns must there be in the output coil
The resistance of each brake light on an automobile is 6.6 ohms. compute the current flow in each bulb
A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, Find the amount by which the length of the stack decreases
A wheel with a tire mounted on it rotates at the constant rate of 2.87 times a second. find the tack's tangential speed
A electric model train travels at 34.7 cm/s around a circular track of radius 1.61 m. Find the train's period of revolution