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While following the directions on a treasure map, a pirate walks 25.2 m north, then turns and walks 4.4 m east.
What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure?
Answer in units of m.
In a certain chemical process, a lab technician supplies 231J of heat to a system. What is the increase in the internal energy of the system
The air around a spinning 142g baseball (below) of radius 3.55cm experiences a faster speed on the left than the right side, determine the pressure difference between the right and left sides of the ball
find the components of the hiker's total displacement for the trip. Find the magnitude and direction of the displacement from base camp.
A circular disk has surface charge density 8.0nC/cm^2. What will the surface charge density be if the radius of the disk is doubled? Express your answer to two significant figures and include the appropriate units.
A 0.20-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.13 to 0.21 m (relative to it sunstrained length), the speed of the sphere decreases from 5.3 to4.6 m/s. What is the spring constant of the spring?
Imagine you are pushing a 15 kg cart full of 25 kg of water up a 10 degree ramp. If the coeff. of friction is .02, what is the total force needed to push it up the ramp
Assume that a gold nucleus has a radius of 6.23 fm and analpha particle has a radius of 1.80 fm. What energy must an incident alpha particle have in order to "touch" the gold nucleus
A convex lens with f1= 20.3cm is mounted 39.5cm to the left of a concave lens. When an object is placed 29.4cm to the left of the convex lens, What is the focal length f2 of the concave lens
At an amusement park, a swimmer uses a water slide to enter the main pool. obtain what is her speed at the bottom of the slide
In redesigning a parallel-plate capacitor with circular plates, you triple both the diameter of the plates and their separation. what is the capacitance of the redesigned capacitor
What is the coefficient of kinetic friction between the table and floor.
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.49 m. Where should the third charge be located?
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