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A passenger on a boat moving at 1.50 m/s on a still lake walks up a flight of stairs at a speed of 0.50 m/s. The stairs are angled at 45 degrees pointing in the direction of motion. what is the velocity of the passenger relative to the water?
A star lying 35pc from the Sun has proper motion of 0.2"/yr. calculate the magnitude of its three-dimensional velocity relative to the Sun
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg, What is the total kinetic energy of the two blocks after the collision
for a piece of material the steady-state flow across its thickness is 0.345x10-3 kgm2 h on the low pressure surface
A 20.0-kg sled is being pulled across a horizontal surface at a constant velocity. Determine the coefficient of kinetic friction
A motorcycle and rider have a total mass equal to 300kg. Therider applies the brakes, causing the motorcycle to accerelate at arate of -5m/s2. What is the net force on the motorcycle
Click on the Energy vs. Position button to see a plot of the kinetic, potential, thermal, and total energies as a function of the skater's position. Try Bar Graph to see the same information as a bar graph. For this tutorial, you should have the C..
W hat are underwater angles of refraction
a football player kicks a ball at angle of θ = 45degree above the horizotal. The initial speed of the ball in22m/sec. find the time of the flight between kick off and landing
the punter on a football team tries to kick a football so that it stays in the air for a long hang time. if the ball is
In an experiment designed to measure the speed of light, a laser is aimed at a mirror that is 47.0 kmdue north. A detector is placed 120 m due east of the laser. The mirror is to be aligned so that light from the laser refelects intothe detector.
at what separation is the electrostatic force between a 10.4 point charge and a 28.2 point charge equal in magnitude to
An insulated Thermos contains 138cm3 of hot coffee at 95 °C. You put a 12g ice cube at its melting point to cool the coffee. By how numerous degrees has your coffee cooled once the ice has melted and equilibrium is reached.
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