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In Paul Hewitt's book, he poses this question: "If the forces that act on a bullet and the recoiling gun from which it is fired are equal in magnitude, why do the bullet and gun have very different accelerations?" Think about Newton's Second Law (F = ma) and answer his question.
Thoughts and reactions to de Crevecoeur's "Letters from an American Farmer" on any element that speaks to you
A 2.2×10^4kg rocket has a rocket motor that generates 3.1×10^5N of thrust. What is the rocket's initial upward acceleration
Using the image method, obtain the images of charges 2q and -3q in the figure below. Find the force on the charge -3q.
A 0.1m long solenoid has a radius of 0.05m and 1.5x10^4 turns. The current in the solenoid changes at a rate of 6.0A/s. A conducting loop of radius 0.0200m is placed at the center of the solenoid by its axis the same as that of the original solenoid.
A person throws a ball from height of 0.950 meter with a vertical velocity of +6.00 m/s and misses it on the way down. Find what is its velocity when it hits the ground
A man pushes a 42 kg crate uphill along a plane inclined at 30 degree with respect to the horizontal. find the total work on the crate by dissipative forces
Consider a cloud that, when viewed from a point on the surface, occupies the portion of the sky defined by: pi/4
Released from rest at the same height, a thin spherical shell and solid sphere of the same mass m and radius R roll without slipping down an incline through the same vertical drop H. Each is moving horizontally as it leaves the ramp.
an auditorium measures 40.0m X20.0 m X 12.0 m. The density of air is 1.20 kg/m^3. find the weight of air in the room
A hydrogen atom initially in its ground state (n = 1)absorbs a photon and ends up in the state for which n = 3. What is the energy of the absorbed photon
Explain how you could determine the composition of this hot vaporized material from the light it emits.
For a critical three-dimensional state of stress where, sx = 45,000, sy = 25,000, sz = -50,000, txy = 4000, tyz = 2000, and tzx = -3500 psi, determine the principal stresses and draw the Mohr circle representation of the state of stress.
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