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52 cm3 of gasoline are mixed with 40 cm3 of water. What is the average density of the mixture
A coil consists of 212 turns of wire. Each turn is a square of side d = 18 cm, compute the magnitude of the induced emf in the coil
A 42.5 mA current is carried by a uniformly wound air-core solenoid with 425 turns, a 19.5 mm diameter, and 13.0 cm length. Compute the inductance of the solenoid
The weight of the purified caffeine is often much lower than the weight of the crude caffeine. Explain the reason why.
Unpolarized light with intensity I0 is incident on two polarizing filters. The axis of the first filter makes an angle of ? = 60 ? with the vertical, What is the intensity of the light after it has
he rate P at which a star radiates energy in the form of electromagnetic waves can be calculated using the equation, Calculate a numerical value for the intensity of sunlight
What is E for the transition of an electron from n = 7 to n = 4 in a Bohr hydrogen atom. What is the frequency, of the spectral line produced
A loop of diameter d = 10 cm, carrying a current I = 0.2 A is placed inside a magnetic field = 0.3 T. Calculate the magnitude of the torque on the loop
A 10 g bullet traveling at 430m/s strikes a 11kg , 1.1-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
A resistor with resistance 14M? is connected in series with a capacitor with capacitance 1.0?F and a battery with emf 13.5.0V. what is the time constant
A toy of mass 0.155 kg is undergoing simple harmonic motion (SHM) on the end of a horizontal spring with force constant 305 N/m. What is the maximum speed attained by the object during its motion?
Two blocks, m1=1.0kg and m2=2.0kg are connected by a light string over a pulley. what is the acceleration of the system
A 20 g ball of clay traveling east at 8.0 m/s collides and sticks togethor with a 20 g ball of clay traveling north at 8.5 m/s. What is the speed of the resulting ball of clay
A 300 g oscillator has a speed of 95.4 cm/s when itsdisplacement is 3.0 cm, What is the oscillator's maximum speed
A factory worker pushes a 30.2kg crate a distance of 5.0m along a level floor at constant velocity by pushing downward at an angle of 30? below the horizontal. What is the total work done on the cra
What keeps the sun shining brightly year after year instead of it just burning up all its energy and dying abd How long has the sun been in existence - How would you suggest that the scientific method
A 5p-mm-focal-length lens has f-stops ranging from f/1.4 to f/22. What is the corresponding range of lens diaphragm diameters
A straight rod consists of a 1.2-cm-long piece of aluminum attached to a 2.0-cm-long piece of steel. By how much will the length of this rod change
Use the appropriate relationships from the chapter of electrons in Atoms to determine the wavelength of the line in the emission spectrum of He+ produced by an electron transition from n=5 to n=2
In lab, your instructor generates a standing wave using a thin string of length L = 2.10m fixed at both ends. What is the maximum transverse speed vy of the bead
A ball of mass 2.4 kg hangs at the end of a string 1.4 m in length from the ceiling of a room. What is the gravitational potential energy of the ball relative to the floor
The minimum energy required to cause the photo electric effect in potassium metal is 3.69*10^-19 J. will photoelectrons be produced when light shines on the surface of potassium?if 400 nm radiation
Laser beam with wavelength 632.8 nm is aimed perpendicularly at opaque screen with two identical slits on it, What are the double slit characteristics (slit width, slit separation)
Another approach to the Lorentz Transformations. Relativists often use a quantity calledrapidity to describe the frame transformations. determine the function f(R)
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion