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A wooden rod of negligible mass and length 84.0 cm is pivoted about a horizontal axis through its center. A white rat with mass 0.470 kg clings to one end of the stick, and a mouse with mass 0.180 kg clings to the other end. The system is released from rest with the rod horizontal.
a) If the animals can manage to hold on, what are their speeds as the rod swings through a vertical position?
Take free fall acceleration to be 9.80 M/S
A 1.50-kg iron horseshoe initially at 670°C is dropped into a bucket containing 22.0 kg of water at 26.0°C. What is the final temperature of the water–horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water..
A particle moves through an angle of 45o on a circle whose radius is 85 cm. What is the arc length traveled by the particle
A particle having charge q = +2.50 µC andmass m = 0.0100 kg is connected to a string that isL = 1.20 m long and is tiedto the pivot point P. The particle, string, and pivotpoint all lie on a frictionless horizontal table.
A coaxial cable has a capacitance of 3.0 pF. The inner conductor has a radius of 1.0 mm, Find the length of the cable
A 2.4mm -diameter sphere is charged to -4.5nC . An electron fired directly at the sphere from far away comes to within 0.32mm of the surface of the target before being reflected. What was the electron's initial speed
Jane, looking for Tarzan, is running at top speed (5.2m/s ) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward
three protons are positioned at the corners of an equilateral triangle with sides 2mm in length. What is the leectric field at the enter of one of the edges of the triangle
a solid wood door 1.04 m wide is hung in a metal door way at 0.0degc with a clearance of 2.2 mm on the side. if the
The water cooling system in a car engine that carries hot water from the engine block to the radiator is an example of cooling by: Transfer ? Conduction ? Convection or Radiation?
An aluminum sphere has a radius of 46cm on the Earth. It is then taken to a distant planet where theatmospheric pressure P is much larger than on the Earth. If the sphere has a radius of 29 cm onthat planet, what is P?
A ladder of mass 30 kg and length 5m leans against a frictionless wall. The angle between the ladder and the wall is 37 degree. what is the force between the ladder and the wall
a pion has a rest energy of 135mev. it decays into two gamma rays bursts of electromagnetic radiation that travel at
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