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The Earth has a mass of 5.98 1024 kg. The average mass of the atoms that make up the Earth is about 40 u. Based on this average mass, how many atoms are in the Earth? ________ atoms
question1youre ceo of a courier company and you decide to select an electric car for your fleet of vehicles. a
A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of 0.260 m2. What is the current induced in the coil
Three charges (q1 = 7.6 ?C, q2 = -4.7 ?C, and q3 = 1.1?C) are located at the vertices of an equilateral triangle with side d = 6.1 cm. q1 is on the bottom left, q2 is on the bottom right, and q3 is at the top.
A violin string 12.5 cm long and fixed at both ends oscillates in its n = 5 mode. The speed of waves on the string is 268 m/s, and the speed of sound in air is 348 m/s. What are (a) the frequency and (b) the wavelength of the emitted sound wave?
A 5.4 ball hangs from a steel wire 1.80 in diameter and 6.00 long. What would be the speed of the wave in the steal wire
Ball 1, with mass of 100g and traveling at 10 m/s, collides head-onwith ball 2, which has a mass of 300g and is initially at rest. What is the final velocity of each ball
The volume of an ideal gas is increased from 1 m3 to 2 m3 while maintaining a constant pressure of 1000 Pa (1 Pa = 1 N/m2). How much work is done by the gas in this expansion
A car starts from rest and accelerates at a constant rate of 3.00 m/s^2 until it is moving at 18.0 m/s. The car then decreases its acceleration to 0.500 m/s^2 and continues moving for an additional 250 m. Find the total time taken.
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
One possible means of achieving space flight is to place a perfectly reflecting aluminized sheet into Earth 's orbit and to use the light from the Sun to push this solar sail. What force is exerted on the sail
Calculate the net impulse delivered to a 138-kg quarterback initally running at 4.5 m/s if he's hit by a defending player and slowed to a speed of 1.1 m/s
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. Determine the induced emf within a circle of tissue of radius 1.9 mm
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