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After a tornado, a 0.50-g drinking straw was found embedded 4.5 cm in a tree. Subsequent measurements showed that the tree exerted a stopping force of 70 N on the straw.
What was the straw's speed?
A meter stick, sitting on a frictionless table top, is struck by a wad of clay with a force, F = 4.0 N at an angle. The meter stick will rotate in the plane of the table. Conclude the magnitude of the torque about the axis of rotation located at t..
Laser light with a wavelength lambda = 660nm illuminates a pair of slits at normal incidence.
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute.
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
A circular saw blade completes 1200 revolutions in 40 rm s while coasting to a stop after being turned off. Assuming steady deceleration, what are (a) angular deceleration and (b) initial angular speed.
A lightbulb has a resistance of 13? and consumes 9.4W of power; the rod is 1.33m long and moves to the left with a constant speed. what is the speed of the rod
The mass of the Moon is 7.35 × 10^22 kg, whereas that of Earth is 5.98 × 10^24 kg. The average distance from the center of the Moon to the center of Earth is 384,400 km.
Charges of 3.00 nC, -2.00 nC, -7.00 nC, and 1.00 nC are contained inside a rectangular box with length 1.00 m, What is the electric flux through the surface of the box
Differences in analysing a roller coaster system as particle and rigid body, such as the assumption(s) made when treating the roller coaster as particle, parameters involved in kinematic and kinetic analysis.
A warehouse worker pushes a crate along the floor, by a force of 5.0N that points downward at an angle of 45° below the horizontal. find the horizontal component of the push.
The x-position of a particle is given by the expression x(t)=(4.0 m)cos(4.0?t+ 5.0?) , where x is in meters and t is in seconds. What is the maximum velocity of the particle
In preparation for this problem, review Conceptual Example 7. A space traveler whose mass is 115 kg leaves earth. What are his mass in interplanetary space where there are no nearby planetary objects
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