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65.0- Hz generator with an rms voltage of 135 V is connected in series to a 3.35-kOnμ resistor and a 1.50- μF capacitor. Find the phase angle between the current and the voltage.
Density measurements can be used to analyze mixtures. For example, the density of solid sand (without air spaces) is about 2.84g/mL.
A 105 -μF capacitor is connected to an ac generator with an rms voltage of 20.0 V and a frequency of 100.0 Hz. What is the rms current in this circuit?
A Boeing 747 jet airliner carrying 568 people burns about 5.0 gallons of jet fuel per mile. What is the rate of fuel consumption in units of miles per gallon per person?
A ball is launched into the air at an angle of 60* above the horizontal with a speed of 21.0 m/s. A) what are the x and y components of the velocity of the ball 3.20 s after it leaves the cannon? B)
What is the vapor pressure of a solution made by dissolving 28.5 grams of c3h8O3 in 125 grams of water at30 °C. the vapor pressure of pure water at that temparture is 31.8 mmHg.
A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The angular frequency of the electromagnetic oscillations in the circuit is:
The distance between 2 telephone poles is 50.0 m. When a 1.00 kg bird lands on the telephone wire, midway between the poles, the wire sags 0.200 m. (a) Draw a free-body diagram of the bird. (b) How
Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n =5 to n = 4.
The blocks are allowed to move on a fixed block wedge of angle 46 degress. The coefficient of kinectic friction is 0.21 for both block. What is the acelleration of the two blocks?
A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude of
Although the acid-dissociation constant for phenol(C6H5OH) is 1.3 x 10-10. The base-dissociation constant for the phenolate ion(C6H5O-) is not.
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 14 g nail when it is struck by a 550 g hammer moving with an initia
A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck?
Two nanowires are separated by 1.2 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4
Why is the turbidity of thehot solution used as an indicator for the ratio of ethanol to waterin the recrystallization of dibromobenzene?
Calculate the difference between the observed frequency, f0, at the car and the original frequency, fs.
What is the pan's distance from the ceiling when the spring reaches its maximum length?
A student did experiements to establish the relativity ofmetallic Zn, Cu, and Pb. The following observations were made: a)both Zn and Pb metals reacted with 6M HCl, but Cu metal did not.
How many grams of s of C10H8 must be added to 25 grams of CCl4 (p0=504 mm Hg) to produce a solution with a vapor pressure of 483 mm Hg?
What is the radial acceleration if the equator were sitting in a city with latitude 34 degrees? Does this rotation make us heavier or lighter? If a person weighs 100 pounds with no rotation, what wo
A certain electromagnetic radiation has a wavelength of 5.50X 102nm. Calculate the energy of this radiation and determine the region of electromagnetic spectrum that this radiation is from.
An iron skillet weighing 1.48 kg is heatedon a stove to 172°C. Suppose the skillet is cooled to room temperature, 21°C. How much heat energy (in joules) must be removed to effect this coolin
They have a potential difference of 0.25 V. Find the numerical value of the electric field. What are the charge density and total charge on each plate? Draw the equipotential surfaces at 0.10 V and
Why doesn't this compound cause seawater to become acidic? if all this compound was to vanish from the atmosphere, would humans benefit? why or whynot?