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A space of 100 cm3 and one of 300 cm3 seperated by a capillary tube, in which a tap is arranged, connected. In the first space is T = 7 ° C and p = 800 mbar. In the second space,T = 87 ° C and P = 1200 mbar. Opens the valve and delivers the first room at 47 ° C, the second at -33 ° C. How big is the pressure in the related areas?
Diffracted light from a circular aperture is viewed on a distant viewing screen, Find the radius of the aperture if the wavelength of light is 680 nm
Light of 546 nm wavelength is incident on a cesium surface that has a work function of 1.91 eV. find the threshold wavelength
A charge of -2.85 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.105 m. The charges on the circle are -3.8 µC at the position due north and +4.55 µC at the position du..
What is the tension T2 in the left-hand cable slanted at an angle of θ2 with respect to the wall? Illustrate what is the angle θ2 which the left-hand cable makes with respect to the ceiling?
A woman walks 300m in the direction 30° east of north, then 300 m directly east.
Find out the minimum sound intensity
A hot air balloon decends toward the ground with a velocity of (1.6 m/s). A champagne bottle is opened to celebrate takeoff, expelling the cork horizontally with a velocity of (4.0 m/s) relative to the balloon.
In an X-ray tube electrons strike a tungsten target (W or "wolfram") after being accelerated through a potential difference V0. Estimate the minimum value of V0 required to observe the Kalpha peak.
Use the value of the Sun's luminosity (3.90×10^26 watts, or 3.90×10^26 joules per second) to calculate what mass of hydrogen the Sun will convert into helium during its entire main-sequence lifetime of 1.2×10^10 years.
An object weighing 338 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 302 N. Immersed in oil; object weighs 313 N. Calculate the density of the object.
A heat engine absorbs 21000 J from a hot reservoir at 257 degrees C and expels 15000 J to a cold reservoir at 37 degrees C in each cycle. Find the theoretical efficiency and the actual efficiency
An electron is accelerated to speed of 1.5*10^8 m/s. at that speed, compare the relativistic results to classical results for , find the electron rest energy according to the relativistic laws
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