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A canister containing 115 kg of an ideal gas has a volume of 6.5 m3. what is the rms speed of the molecules
One 20-year-old twin brother takes a space trip with a speed of 0.80c for 30 years according to a clock on the spaceship, determine the age of the Earth-based twin brother
Elements in the sixth representative group tend to (lose one, lose two, gain one, gain two) when they participate in the ionic bonding
The first and second electron shells of an element are filled and there are five electrons in the third electron shell
An aluminum plate has a length of 0.12 m and a width of 0.10 m at 25 °C. what is the change in the area of the plate as a result of the increase in temperature
During the time a compact disc(CD) accelerates from rest to a constant rotational speed of 1260rev/min, what is the angular acceleration of the CD
A ball moving at 5ms collides head on elastically with a ball at rest. what are the velocities of the two balls after the collision
A paperweight, when weighed in air, has a weight of W = 7.3 N. When completely immersed in water, Find the volume of the paperweight
A 0.30 m 0.30 m 0.10 m block is suspended from a wire and is completely under water. What buoyant force acts on the block
How is single slit diffraction pattern and intensity affected by the width of the slit, the distance of the slit from the screen, Which of these parameters affects the pattern most
The size of an oil container measures 30m in length x 30m in width and a height of 10 m. Estimate the density of the crude oil inside the container
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. What is the volume of the object
A cylindrical container filled with water having a cross section 0.04 m^2 is placed on a scale, What is the rise in water surface after the ball is put in the water compared to before
A cannonball (20kg) is shot from a cannon(200kg) with a velocity of 20m/s. what is the backwards velocity of the cannon
Your temperature is 98.4 degrees fahrenheit. what is the wavelength corresponding to the largest intensity
The K-shell ionization energy of iron is 8500 eV, What is the wavelength of Kalpha X-rays emmited by iron
A projectile is shot horizontally at 65.3 m/s from the roof of a building 24.4 m tall. Determine the distance from the base of the building that the projectile lands
Two lenses having focal lengths of f1=15 cm and f2=9 cm are separated by a distance of 50cm. If the lenses are moved into contact, what is their combined focal length
An object is 5 cm from an equi-convex lens of focal length f=15 cm, What is the position of the image
Fit a linear regression model as in Q5, and plot your estimates for β0 and β1 as N increases, together with a line indicating their true values.
Design an audio amplifier using a JFET and a 20-volt power supply. The amplifier is to have a gain of 50
A ball (mass 100g) is recorded to have a speed of 2m/s after falling 5m under gravity. What is the work done by air resistance
A record (mass 100g and radius 12cm) is rotating at a rate of 33rpm. What is the new rotational rate if angular momentum is conserved
The closest star to our solar system is Alpha Centauri, which is 4.30 light years away. How much time would elapse on a clock on the Earth