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a) If your de Broglie wavelength were 0.45 m, how fast would you be moving if your mass is 77.0 kg?
b) If you span 0.25 m from front to back, approximately how long would it take you to walk through the doorway?
A 124 kilogram balloon carrying a 22 kilogram basket is descending with a constant downward velocity of 18.8 m/s. Determine how high was the balloon when the rock was thrown out
An equilateral triangle has sides of lengthL. Charges of +Q,-2Q,and +3Q are placed at the vertices. Find the electric field midway between the two positive charges
How much friction must be exerted between the skates and ice.
X-rays with a wavelength of 7.02 x 10^-12 m strike a stationary electron and the reflected photon is scattered 75 degrees relative to the incident photon
An engine moves a boat throughthe water at a constant speed of 15 m/s. What power does the engine develop
A laser beam in air is incident on a liquid at an angle of 38.0 with respect to the normal. What is the critical angle for total internal reflection for this fluid
In an ice show, a 60.0 kg skater leaps into the air and is caught by an initially stationary 75.0 kg skater. What is their final velocity assuming negligible friction
A particular radioactive sample undergoes 3.60x10^6 decays/s. What is the activity of the sample in the following in curies
An Atwoods machine is made with masses M1=100g, M2= 120g, and pulley mass of 100g. What is the percent error in acceleration
an airboat with mass 4.36 x 102 kg including the passenger has an engine that produces a net horizontal force of 8.20
A 782 kg car is pushed at a constant positive velocity in a flat parking lot whose coefficient of friction is 0.18. If the car is pushed for 23 meters, what work is done by the forces acting on the object
A car initially traveling at 24.7 m/sunder goes a constant negative acceleration of magnitude 1.50 m/s 2 after its brakes are applied. How many revolutions does all tire make before the car comes to a stop, assuming the car does not skid and the t..
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