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A double convex lens has equal curvature radii of 35 cm. What is the refrative index of the lens
Assume blood flow using poiseuille's law. If cholesterol reduces the diameter of an artery by 20%, by what percentage will the blood flow rate be reduced
A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 30.0°C from 196°C, What was the net radiant power of the baking dish
two identical springs of spring constant 6770 N/m are attached to a block of mass 0.225 kg. What is the frequency of oscillation on the frictionless floor
climbers attempting to cross a stream place a 345 kg log against a vertical frictionless ice on the opposite side the log log is inclined at 27 degree, what is the maximum mass for a climber and pac
The first-order principal maximum produced by a grating is located at an angle of ? = 15.0 degrees. What is the angle for the third-order maximum
Light bulb 1 operates with a filament temperature of 2400 K, whereas light bulb 2 has a filament temperature of 1600 K. Find the ratio A1/A2 of the filament areas of the bulbs
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.11 m2 and whose thickness is 3 mm. what is the percentage lost by the window
A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of the hot junction is 110 °C, what is the temperature in degrees Celsius of the hot junction
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
for an arrangement sshown block 1 and block 2 are both the same mass. determine the downward acceleration of block1
What is the most probable kinetic energy for a molecule of a gas at temperature T = 300.K
A proton in Fermilab's Tevatron is accelerated through a potential difference 2.06 MV during each revolution around the ring of radius 1.00 km. how many revolutions must the proton make
Type your question hereTwo converging lenses are separated by 23.80 cm. Determine the final image distance relative to the lens on the right
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 0.72 eV. What is the width of the square well
Initially, the translational rms speed of a molecule of an ideal gas is 460 m/s. The pressure and volume of this gas are kept constant, find the final translational rms speed of the molecules
A cylindrical glass of water (H2O) has a radius of 4.38 cm and a height of 12.3 cm. The density of water is 1.00 g/cm3. How many moles of water molecules are contained in the glass
The box of a well-known breakfast cereal states that one ounce of the cereal contains 107 Calories (1 food Calorie = 4186 J). what is the weight of the heaviest barbell
The planet saturn has a mass of 5.69x10^26kg and a volume of 8.01x10^23m^3. Would Saturn sink or float in water Explain
The middle C string on a piano is under a tension of 911 N. The period and wavelength of a wave on this string are 3.82 ms, Find the linear density of the string
When a 290 g piece of iron at 182°C is placed in a 100 g aluminum calorimeter cup containing 250 g of glycerin at 12°C, What is the specific heat of glycerin
A device used in radiation therapy for cancer contains 6.20×10-1 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
The isotope 88224Ra of radium has a decay constant of 1.19×10-6 per second. What is the half-life (in days) of this isotope
In 9.00 days the number of radioactive nuclei decreases to one-eight the number present initially
A proton has a speed of 0.85c. FIRST Calculate the rest energy of the proton, Calculate the kinetic energy of the proton