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An iceboat is gliding on a frozen lake with no propulsive force being applied. Ignore any damping forces such as friction or air resistance. From the Bridge a person jumps straight down and lands in the boat, which continues to coast straight ahead.
a) Does the horizontal momentum of the boat Change?
b) Does the speed of the boat increase, decrease or remain the same? Explain your answers.
Two pipes of the same length are both made to vibrate at their lowest resonant frequency. What is the length of the pipes?
Find out an acceleration of mass and tension in the string
A coffee filter of mass 1.4 grams dropped from a height of 2 m reaches the ground with a velocity of 0.6 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter.
assuming the average person has a mass of 68kg? Do not avoid the weight of the logs. Assume the specific gravity of wood is 0.6.
The wind exerts a force of 325N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find out the magnitude and direction of the net force on sailboat.
A roller coaster is towed up an incline at a steady speed of 0.51m/s by a chain parallel to the surface of the incline. The slope is 2.85 % that means that the elevation increases by 2.85 m for every 100m of horizontal distance.
The label on a candy bar says 480 Calories. Assuming a typical efficiency for energy use by the body, if a 62 person were to use the energy in this candy bar to climb stairs, how high could she go?
An airplane flies due south at 155km/h relative to the air. There is a wind blowing at 89 km/h to the east proportionate to the ground. What are the plane's speed and direction relative to the ground.
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system
Forces of 11.0 N norths, 19.5 N east, and 15.90 N south are simultaneously applied to a 3.70 kg mass as it rests on an air table. What is the magnitude of its acceleration.
An electron is accelerated by a 4.5 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5 cm.
A cylindrical space station of radius R and length L has a density that varies with distance from its center, Calculate the total mass M of the entire space station
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