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The nucleus of an atom has a radius of about 6.8×10-15 m. The electron is normally at a distance of about 1.3×10-11 m from the nucleus. Assuming the atom is a sphere with a radius of 1.3×10-11 m,
1. find the volume of the atom.
2. Find the volume of the nucleus.
3. Find the percentage of the volume of the atom that is occupied by the nucleus
What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 second? Explain your answer and state why this question is an exercise in careful reading as well as in physics.
The plane is inclined at an angle of 24.9 degrees with the horizontal. Using the accerlation due gravity from your reference table. Illustrate what is the magnitude of object's acceleration?
What is the magnitude of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?
A projectile is fired at time t = 0.0 s, from point 0 at edge of a cliff, with initial velocity components of vix=30m/s and viy = 100m/s. The projectile rises, and then falls into the sea at point P. The time of flight of the projectile is 20s.
A sailor strikes the side of his ship just below the surface of the sea. He hears echo of the wave reflected from the ocean floor directly below 9 s later. How deep is the ocean at this point.
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
Determine the magnitude of the emf induced in the loop after exactly time 6 has passed since the circumference of the loop started to reduce.
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 4.1-kg block
A wave has angular frequency 140 rad/s and wavelength 1.60 m. Calculate the angular wave number
A trolley that moves along a horizontal beam is acted upon by two forces as shown. (a) Knowing that a 5 25°, determine by trigonometry the magnitude of the force P so that the resultant force exerted on the trolley is vertical. (b) What is the cor..
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
An anchor shoots an arrow with a velocity of 45 m/s at the angle of 50 degrees with the horizontal.An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up into the air at th right time and speed ..
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