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Q. An atomic nucleus of mass 288 u moving at 405 m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360 m/s, what speed does the alpha particle have when it is emitted?
Q. Determine the force acting on a moving electron when it enters a magnetic field which is perpendicular to its direction of motion. The charge on the electron is 1.6 x 10^ -19 coulombs and its velocity is 2.5 x 10^6 meters/sec. The magnetic field strength, B, is 0.035 Tesla.
What is pressure in the cylinder
How close to the edge of the 28.0 kg table, that is 2.2m with legs 1.2m apart, can a 62.0 kg person sit without tipping it over.
A steel wire of length 1.97 with circular cross section must stretch no more than 0.260 when a tensile (stretching) force of 400 is applied to each end of the wire. What is the minimum diameter necessary.
Find the energy, in joules, of one quantum of energy for an atomic oscillator in a block of aluminium.
The parallel metal plate of a capacitor is separated by a distance of 0.5cm and is connected to a 90v battery. Discover an electric field between them and the surface charge density .
The angular momentum of Earth is constant
How many 104W lightbulbs can you use in a 113 V circuit without tripping a 17 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each lightbulb is 113V.)
The dipole moment of a water molecule in liquid water is 6.2×10-30 C•m, and the effective diameter of the water molecule is 2.8×10-10 m. In an earlier homework problem the effective dipole charge separation for water was calculated as 1.9×10-11 m.
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
For the Atwood's machine, suppose the masses have an initial speed of v = 0.22 m/s and that m2 is moving upward. How high does m2 rise above its initial position before momentarily coming to rest, given that m1 = 3.5 kg and m2 = 3.1 kg.
Sketch on Eratosthenes' method, if two observers are due north and south of each other and are separated by 700 km, what is the circumference of their spherical world if they see same star on their meridian at altitudes of 26 degrees and 47 degrees r..
A cart carrying a vertical missile launcher moves horizontally at the constant velocity of 30.1 to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.33 relative to the cart.
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