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The average distance between the proton and the electron in a hydrogen atom is 5.29 x 10-11 m. With the particles separated by this distance, the 'Bohr radius,' what is the electric potential energy of the configuration?
The electric field in a velocity selector is generated by two parallel plates separated by 5.00 cm with a potential difference of 90.0 V. at what speed will particles pass through undeflected
Light of wavelength 550 nm falls on a 0.50 mm wide slit and forms a diffraction pattern on a screen 1.7 m away. Find the width of the central maximum
A solid ball rolls along the floor with a constant linear speed v. Obtain the fraction of its total kinetic energy that is in the form of rotational kinetic energy about the center of the ball
Estimate the thickness of the Earth's atmosphere. From your chemistry class, you know that the most common speed of a nitrogen molecule is 640 m/s. What is the altitude
After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. explain the entering speed of the bullet.
Particles of charge Q1 = +69 µC, Q2 = +51 µC, and Q3 = -80 µC are placed in a line, Calculate the net force on each charge due to the other two
Find the magnitude of the momentum of the 1.60-kg ball just before it collides with the 3.50-kg ball. Find the speed of the two balls (now stuck together) at the instant immediately after the collision.
Liquid ammonia flows through a 2.5 cm inside diameter tube which is 2.5 m long. The ammonia flow rate is 0.5 kg/sec. The ammonia enters at 10 oC and leaves at 38 oC and a constant heat flux is imposed on the tube wall.
The magnetic flux through a circuit is reduced from 35 Tm^2 to 5 Tm^2 in 0.1s. The current induced in the circuit is 3.6 mA. What is the resistance to the circuit
a 2.6-kg shere of radius 35cm is intially rolling on a flat surface with a speed of v.40 ms. it comes to rest in 80m.
during each cycle a refrigerator ejects 605 kj of energy to a high-temperature reservoir and takes in 545 kj of energy
a circular loop of wire 0.8 m in diameter is placed with its normal at an angle of 30deg to the direction of a uniform
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