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An object is placed 55 centimeter from a concave mirror of focal length 96 centimeter. The object is 6.7 centimeter tall. Determine how tall is the image? Determine is the image real or virtual?
A pulley system lifts a 1345-N weight a distance of 0.975 m. Paul pulls the rope a distance of 3.90 m, exerting a force of 375 N. How efficient is the system? What is the mechanical advantage?
an athlete executing a long jump leaves the ground at a 32.5 degree angle and travels 7.67 meters.what was the take off
A wide rectangular channel discharges 1.6 m3/sec per unit width. The slope is 0.001 and the manning's coefficient is 0.015. At a certain point the water depth is 0.75m. How far downstream will it be 0.73m. Use V.T.
You have a ballistic pendulum. At the end of the event, the angle of the pendulum is ? with the length of the pendulum being L. Find the muzzle velocity of the projectile
q1. a person is pulled to the right on a sled total mass of 54.3 kg across the surface of a frozen pond with a force of
A neutral sodium atom has an ionization potential of X=5.1eV. Sodium has mass number A=23. What is the minimum speed of a free electron that can ionize a sodium atom in the ground state?
A 15.0kg block is attached to a very light horizontal spring of force constant 550N/m, Find the maximum distance that the block will compress the spring after the collision
An ultrasound unit is being used to measure a patient's heartbeat by combining the emitted 2.0 MHz signal with the sound waves reflected from the moving tissue of one point on the heart. What is the maximum speed of the heart tissue
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated by the radius of the atom. If the radius of the hydrogen atom is 5.29*10-11 m and the electrostatic force is responsible for the circular ..
A parallel combination of a 1.09-?F capacitor and a 2.81-?F one is connected in series to a 4.33-?F capacitor. This three-capacitor combination is connected to a 15.3-V battery
question on forming the nuclide from the protons neutrons and electrons the mass loss per nucleon for the is 0.00759
A container of hot water at 80 degrees cools to 79 degrees in 15 seconds while it is placed in a room that is t 20 degrees. Use newton's law of cooling to estimate the time it will take for the container to cool from 50 degrees to 49 degrees.
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