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A tire is filled with air at15°C to a gauge pressure of 210kPa. If the tire reaches a temperature of 36°C, what fraction of the original air must be removed if the original pressure of 210 kPa is to be maintained?
Consider a violin string with a vibrating length of 30 cm. If the speed of a wave on this string is 250 m/s, what is the tension in the string? Hint: You will have to estimate the diameter of the string. Assume the density is the same as that of s..
An inductor that has an inductance of 15.0 H and resistance of 30.0 W is connected across a 100-V battery. Calculate the rate of increase of the current
A string is 59.0cm long and has a mass of 3.00 g.A wave travels at 4.95m/s along this string. what is the speed of a wavealong the second string
a 0.065 t magnetic field passes through a circular ring of radius of 4 cm at an angle of 25 dregrees with the normal. what is the magnitude of the magnetic flux through the ring
Consider 1 cubic meter of dry at the surface with a temperature of 300 K and a pressure of 1000 mb. Problem 19) How much energy must be added to this cubic meter of air in order to double its volume? What is the final temperature?
The so-called "hydrogen alpha (Ha) line" is a specific wavelength of red light caused by excited atomic hydrogen. What is the frequency ( in units of cycles per second, or 1/s) of Ha in vacuum
A 76 man weighs himself at the north pole and at the equator. How much higher is the scale reading in the north pole and by how much
A spring is compressed by 0.0541 m and is used to launch an object horizontally with a speed of 2.80 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
A jeweler examines a diamond with a magnifying glass. find the angular magnification when the diamond is held 5.39cm from the magnifying glass
A 15 g bullet is fired at a 2.1 kg wooden block which is hung at the end of 1.35 meter long string as a ballistic pendulum. the bullet strikes the block and embeds itself 10 cm into the block. the pendulum then swings up to an angle of 27.5 degree..
A planet of mass 8 × 10^24 kg is at location ‹ -4 × 10^11, 7 × 10^11, 0 › m. A star of mass 7 × 10^30 kg is at location ‹ 5 × 10^11, -5 × 10^11, 0 › m. What is the force exerted on the planet by star? (It will probably be helpful to draw the diagr..
A potential difference of 2.0 V is applied across a wire of cross sectional area 2.5 mm^2. What is the resistance of the wire
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