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Water at a pressure of 3.2 atm at street level flows into an office building at a speed of 0.5 m/s through a pipe 5.6 cm in diameter. Calculate the water pressure in such a pipe on the top floor
One of the harmonic frequencies of tube A with only one end open is 1080 Hz. The next-highest harmonic frequency is 1320 Hz. Find the length of the tube A
An 8 g of ice cube at %u2013 120 C is put into a thermos flask containing 100 cm3 of tea at 850C. What is the drop in temperature for tea
Suppose 2.5 mol of an ideal gas is taken from a 6m3 to a volume of 3 m3 via an isothermal compression at 30 0C. Find work done during the compression
A 150 g Copper bowl contains 220 g of water, at an initial temperature T1. A 300 g Copper cylinder at 7000 C is dropped into the water, How much energy is transferred to the bowl
Iodine-131 has a half-life of 8 days while iodine-125 has a half life of 60 days and are both used therapeutically for different purposes. what percentage of the iodine-125 has decayed
In its own reference frame, a box has the shape of a cube 2.5mon a side. This box is loaded onto the flat floor of a spaceship, What is the volume of the box as we observe it
In an X ray scattering measurement the first order diffraction peak is observed at angle 1= 17.4 deg. What is the angle of the third order peak
Electrons are accelerated through a voltage difference of 145 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons
A small coil of 40 turns and a surface area 30 cm^2 has its plane perpendicular to a magnetic field B=0.5T. how much charge passes through the coil
If a electron after being accelerated by a potential difference of 100 V enters in a uniform magnetc field of 1T perpendicular. Calculate its radius of circular path described by it
A very small object carrying -3 x 10-6 C of charge is attracted to a large, How much Kinetic Engergy does the negatively charged object gain
The random noise level of a buzzing mosquito is 32dB and that heard in a typical classroom is 71dB. How many mosquitos are required to make a noise level equivalent to that heard ina typical classro
A proton is accelerated from rest to 0.75c. Find the relativistic momentum of the proton moving at 0.75c.
An electron orbiting a hydrogen atom has an initial energy of -0.544 eV. The atom emits a photon, then absorbs a photon, What was the wavelength of the emitted photon
A common flea that has a mass of 0.008 g can jump vertically as high as 19 cm. Estimate the wavelength for the flea immediately after takeoff
A beam of photons that have a wavelength equal to 6.8pm is scattered by electrons initially at rest. What is the change in wavelength of the photons
A ray of sunshine is passing from diamond into crown glass; the angle of incidence is 35.00 degrees. Determine the angle between the refracted blue and red rays
A bat flying in complete darkness emits high frequency sound of 100 kHz to locate objects. What is the frequency in which the bat is received
Light of wavelength 646nm from a distant source is incident on a slit .720mm wide, What is the distance between the two dark fringes on either side of the central bright fringe
A silver wire 2.6mm in diameter transfers a charge of 420C in 80minutes. Silver contains 5.8 free electrons per cubic meter. What is the current in the wire
A solid cylinder has an area of 10cm^2 and a height of 1.0m. The cylinder is composed of 2 different materials with mass densities of 2000 kg/m^3, what is the mass of the cylinder
A grade school student plans to build a 38-power telescope as a science fair project. What focal length is needed for her objective
An AC generator has a sinusoidal EMF with a maximum value of 25.0 V and a frequency of 60.0 Hz; what is the power output of the generator
An olive is at the bottom of a glass of alcohol (n = 1.36), 5.10 cm beneath the surface. what is the apparent depth d' of the olive