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An airtight box has a removable lid of area 1.3 x 10-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.85 x 105 Pa. The inside of the box is completely evacuated. Find the magnitude of the force required to pull the lid off the box?
question a large cruise ship of mass 6.50 107 kg has a speed of 12.0 ms at some instant. what is the magnitude of the
It exhausts the propellant in a 20-s “burn.” If the rocket, initially at rest, moves at 150 m/s after the burn, illustrate what impulse is experienced by the rocket sled?
question a dipole consisting of charges plusmn e 220 nm apart is placed between two very large essentially infinite
A 12 kg runaway grocery cart runs into a spring with spring constant 240 N/m and compresses it by 60 cm. What was the speed of the cart just before it hit the spring?
A 350 g air track cart on a horizontal air track(no friction) is attached to a string that goes over a pulley with a moment of inertia of 6.00*10^6 kg.m^2 and radius of 1.35 cm. find the tension in the string between the pulley and the cart
A ball thrown straight up at an initial speed of 14.0m/s reaches a maximum height of 7.6m. What fraction of the ball's initial kinetic energy is dissipated by air resistance as the ball moves upward?
Pre-lab (to be completed and submitted via Sakai before class): A round object with a rotational inertia of I = BM(R^2), where B is a constant, M is its mass and R is its radius, rolls without slipping a distance "d" down a plane inclined at an angle..
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 200 N/m. Two small charged objects are attached to this spring, one at each end, determine the possible algebraic signs
Water is discharged from a large pump and travels at an average velocity of 48 ft/sec. What is the kinetic energy of each lbm of water leaving the pump
The distance between the first and fifth minima of a single-slitdiffraction pattern is 0.25 mm withthe screen 50 cm away from the slit,when light of wavelength 477 nm isused. Calculate the angle of the firstdiffraction minimum
Two particles, with charges of q1 = 60.0nC and q2 = ?60.0nC, are placed at the points with coordinates, Find the electric potential energy of the configuration of the three fixed charges
A speck of dust on a spinning DVD has a centripetal acceleration of 20 m/s^2. A) What is the acceleration of a different speck of dust that is twice as far from the center of the disk? B) What would be the acceleration of the first speck of dust if t..
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