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The particle has an average lifetime of 30.0 ns when at rest. In order to travel 10.0 m, how fast must it move?
a plane diving with constant speed at an angle of 49.0deg with the vertical releases a projectile at an altitude of 510
The total translational kinetic energy of the molecules of a sample of gas at 421 k is 3.95x10^4j. Find the average translational kinetic energy of a single molecule
How far from a concave mirror of radius 0.25 m must an object be place for a real image to be formed 1 m from the mirror? What is the magnification of that image
Acircular hole of radius 8.470×10−1 cm mustbe cut into the front panel of a displayunit. The tolerance is1.0×10−3 cm, which means the actual hole cannot differ by more than this quantity fromthe desired radius.
The volume flow rate in an artery supplying the brain is 3.0 x 10-6 m3/s. If the radius of the artery is 5.4 mm, determine the average blood speed
A physicist uses a cylindrical metal can 0.300m high and 0.070m in diameter to store liquid helium at 4.22 K; at that temperature the heat of vaporization of helium is 2.09×104J/kg. How much helium is lost per hour
Find the action variable for a ball with speed v bouncing between two elastic walls a distance d apart. Find the angle variable
you need to move a 500 n box horizontally across the floor. you pull on the box with a rope which is also horizontal.
Just as you are about to step into a nice hot bath, a small earthquake rattles your bathroom. Immediately afterward, you notice that the water in the tub is oscillating. What is the wavelength of this standing wave
A radioactive isotope has an activity of 9.32×104 Bq initially. After 3.55 hours the activity is 6.71×104 Bq. What is the half-life of the isotope?
he resolving power of a microscope depends on the wavelength used. what minimum kinetic energy is required for the electrons
A horizontal force of magnitude 34.5 N pushes a block of mass 4.09 kg across a floor where the coefficient of kinetic friction is 0.609. During that displacement, the thermal energy of the block increases by 39.3 J. What is the increase in thermal ..
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