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A person cooks a meal in a 30-cm-diameter pot that is covered with a well-fitting lid and lets the food cool to the room temperature of 20°C. The total mass of the food and the pot is 8 kg. Now the person tries to open the pan by lifting the lid up. Assuming no air has leaked into the pan during cooling, determine if the lid will open or the pan will move up together with the lid.
A 3.0 kg particle with velocity v = (5.0 m/s) i - (6.0 m/s)j is at x = 3.0 m, y = 8.0 m. It is pulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle
Two identical rods each of length L and charge Q are perpendicular to each other and separated by a distance D, Find the force between them
The speed of light in a certain piece of clear plastic is 1.87 108 m/s. A ray of light strikes the plastic at an angle of 17°. At what angle is the ray refracted
A 30.0- goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50×10?2 and period 1.50. What is the maximum speed of the goldfinch
A0.430kg pendulum bob passes through the lowest part of its path at a speed of3.80m/s. What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long
A motorist pulls into a gas station and uses a pressure gauge to check one of the tires on her car. What is the absolute pressure of the air in the tire
A 12 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 16 kg package on the ground, What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground
An astronaut lands on a distant planet and wants to measure the planet's gravitational acceleration. What is the acceleration due to gravity on this planet
The angular momentum of a flywheel having a rotational inertia of 0.242 kg·m2 about its central axis decreases from 9.30 to 0.230 kg·m2/s in 4.40 s. What is the magnitude of the average torque acting on the flywheel about its central axis during th..
A 2.3 106-kg spaceship moves away from Earth with a speed of 0.37c. find the magnitude of the ship's classical momentum
A fictional spaceship accelerates at a constant rate of 0.108 m/s^2. How long would it take to reach the moon, 3.48 x 10^8 m away
Physics - Classical Mechanics : explained, A student could either pull or push, at an angle of 300 from the horizontal, a 50-kg crate on a horizontal surface, where the coefficient of kinetic friction between the crate and surface is 0.20. The cra..
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