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Some nucleus of 74X189 (atomic mass = 188.96191 u) undergoes - decay to become 75X189 (atomic mass = 188.95922 u). What is the energy (in MeV) released in this process?
q1. what is the theoretical maximum amount of ice that the freezer might make per hour starting with water at 20 ?c?q2.
An electron is observed traveling at a speed of 25.7·106 m/s, How far will the electron travel before coming to a stop
n a series RLC circuit, the resistance is 26 O, the capacitance is 68 µF and the inductance is 40 mH. Find the power dissipated in the resistor
A 2.54 kg particle moving along the x-axis experiences the force shown, where Fmax=6.85 N, Fmin=-6.85 N, d1=1.27 m, d2=2.54 m, d3=3.81 m, and d4=5.08 m. At x=0.00 m the particle's velocity is 3.93 m/s. What is its velocity at x=2.54 m?
q1. a 59-g ice cube at 0degc is heated until 52 g has become water at 100degc and 7.0 g has become steam at 100degc.
q1. a race car has the mass of 702 kg. it starts from rest and travels 45.0 m in 3.0 s. the car is uniformly
A truck rests on a bridge span whose length between support is 120 feet. Find the upward force exerted by each support pier on the bridge
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm.Then the ball is pulled down another 4.0 cm and released. a) What is the spring constant? b) What is the period of the oscillation?
How much higher would the ball have gone in a vacuum. The time constant of an RC circuit is 4.8 s. How much time t is needed for the capacitor (uncharged initially) to gain one-half of its full equilibrium charge.
What is the minimal mass of helium (density 0.18) needed to lift a balloon carrying two people in a basket, if the total mass of people, basket, and balloon (but not gas) is 320.
A microwave oven operates with sinusoidal microwaves at a frequency of 2400 MHz. The height of the oven cavity is 25 cm, What is the amplitude of the electric field
The sound level measured in a room by a person watching a movie on a home theater system varies from 65 dB during a quiet part to 95 dB during a loud part
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