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The electron in a hydrogen atom having energy of-.544 eV is in a sub-shell having 18 states. i) Determine the principal quantum number, n for the atom?
Let consider the point A which is 30 cm from the end of the string and point B that is 60 cm from the end of the string. Amplitude of both points is 1cm. Determine: i) Wave speed ii) Frequency
A spacecraft moving away from the Earth emits a 4377 Hz signal. A scientist on Earth evaluates the signal to be 4373 Hz. Determine the speed of the spacecraft relative to the Earth?
What collector area (in square meters) is essential to increase of the temperature 240 L of water in the tank from 22°C to 35°C in 2.8 h if the intensity of incident sunlight is 600 W/m2? Th
A fish is swimming in water within a thin spherical glass bowl of uniform thickness. Supposing the radius of curvature of the bowl is around 25.0 cm, place the image of the fish when the fish is pos
Describe by using illustrations, why seemingly simultaneous events might take place at different times and various places, based on your frame of reference.
A meter stick is supported on the fulcrum at the 29 cm mark. An object of 0.90 kg is suspended from the zero end of the meter stick, and the stick is balanced horizontally. Determine the mass of the
Determine this temperature. Suppose that the specific heat of liquid and gaseous aluminum is around1170 J/kgC.
A person skateboarding departs the top of the hill and consists of a weight of 784N and is traveling at 3m/s. After a 94 m drop her speed is 23m/s. Compute the work done by non conservative force of
i) Find out the temperature (in C) of the copper-steel interface. ii) Determine how much heat is conducted via 1.00 m2 of the joint sheets per second?
A man on the top of a building throws a ball at 18m/s at a 35 degree angle off a 165' building. Determine how fast the ball is moving if it strikes the ground.
A string closed at each end is plucked and the given two standing waves (2nd harmonic and 3rd harmonic) are made. The primary frequency (n = 1) is 60 Hz. Determine the wavelength of the second harmo
A lead sinker having mass 225 grams and density of 11.3 g/cm3 is joined to the bottom of a wooden block of mass 25 grams and density 0.5 g/cm3. Compute the apparent weight if both are submerged in wa
Determine the hydroxide-ion concentration of a solution if its hydronium-ion concentration is around 1 x 10^-5 mole per liter? Determine the pH of the solution.
Assume that the water strikes the ground 4.25 m from the hole in the tank. When the hole is 2.45 m above the ground, determine how far above the hole is the water level?
A photon consists of an energy E and wavelength\lambda before scattering from a free electron. After scattering via a 140°, the photon's wavelength has raised by 11.0%. Determine the initial wav
The two positive point charges are a fixed distance apart. The sum of their charges is Q_T. What charge should each encompass in order to (i) maximize the electric force among them and (ii) minimize
The Garfield Thomas water tunnel at Pennsylvania State University consists of a circular cross section which constricts from the diameter of 4.5 m to the test section that is 1.2 m in diameter. When
X-rays having wavelength 49.7 pm are incident on the target. (i) Determine the wavelengths of the x-rays scattered at 45.0°.
In winter a lake consists of a 0.25 m thick ice layer over 1.50 m of water. A light beam from over hits a spot on the ice, making a 32 circ angle with the normal. Determine how far horizontally from
Throughout an aerobatic maneuver flown in a jet powered aircraft a 60 kg pilot pulls out of a vertical dive in a circular arc having a radius of 350m. At the bottom of circle the planes speed is aro
The magnitude of the field differs with time according to B = 1.41t3, where t is measured in seconds and B in teslas. Determine the induced current in the coil at t = 1.75 s?
Explain what info you would need to calculate which one of these three acids would need the most NaOH to reach a phenolphthalein endpoint.
The distance from the center of circle to the center of the sphere is around 1.7 m, the mass of sphere is around 6 kg and the radius of the sphere is around 0.70 m. Determine the rotational kinetic
Flint glass consists of a refractive index of around 1.645 for blue light and 1.629 for red light. A bi-convex lens made up of flint glass consists of two convex surfaces of radius of curvature of 1