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An object which has a height of 12.5 cm is placed 45.0 cm in front of a concave spherical mirror which has a focal length of 15.0 cm. What is the radius of curvature of this mirror?
A wave on a Slinky has a frequency of 1.69 Hz. It takes 4.1 s to travel the length of the Slinky (0.29 m). What is the wavelength.
A current with sinusoidal time-dependence, whose peak value is 6.55 A and frequency is 879 cycles per second, Calculate the average power dissipated by the loop
A solid sphere of moment of inertia (2/5) MR^2 rolls without slipping down an incline plane of 30 degrees from a height of 8 meters. What is the velocity at the bottom
Two forces, F1=(-3.0i-4.45j)N and F2=(-2.75-5.50j)N, act on a particle of mass 1.50kg that is initially at rest at coordinates (-2.05m,3.75m). what are the components of the particles veloctiy at t=10 seconds
A 16 kg wood ball hangs from a 2 m-long wire. The maximum tension the wire can withstand without breaking is 435 N. A 1.2 kg projectile traveling horizontally hits and embeds itself in the wood ball. What is the largest speed the projectile can ha..
a retarding force is applied to a body moving in a straight line so that during an interval of its motion its speed v
a doppler speed meter operating at exactly 1.02 x 105 hz emits sound waves in the direction of anoncoming baseball. the
If the ropes supporting the rings are attached to ceiling directly above, what is the tension in each rope.
A copper wire of length L and cross sectional area A is connected to a 12.0 volt DC power supply. The current through the wire is measured at 36A. What is the current through both wires
An 2,705kg truck is stopped at a red light. A 1,903kg car that was moving 9.1m/s bumps into the truck and they stick together. Calculate their speed right after the collision
A 67kg man's arm, including the hand, can be modeled as a 70cm -long uniform cylinder with a mass of 3.5kg. by how much does he raise his center of gravity
returns the shot with the ball traveling horizontally at 40 m/s in the opposite direction. Illustrate what is the impulse delivered to the ball by the tennis racquet?
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