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The Cosmoclock 21 Ferris wheel in Yokohama City, Japan, has a diameter of 100 m. Find the speed of the passengers when the Ferris wheel is rotating at this rate (in m/s)
One component of a magnetic field has a magnitude of 0.070 T and points along the +x axis, Find the magnitude of the net magnetic force that acts on the particle
When a 2.90 kg object is hung vertically on a certain light spring described by hooke's law, if the 2.90-kg object is removed, how far will the spring stretch if a 1.45 kg block is hung on it
The potential energy of two small particles in water is approximately: Write down a formula for the force between them
After two days, only one-quarter of a radioactive sample remains. What is the half life of the nuclei
As you stand motionless on the sidewalk, you hear an ambulance siren broadcasting a shrill 610hz sound while it is approaching, What speed is the ambulance
Walking by a pond, you find a rope attached to a tree limb 6.0 m off the ground. You decide to use the rope to swing out over the pond. What is the maximum safe initial angle between the rope and the
two hockey players strike a puck of mass of .164kg, one from westward force of 1.10 x 10^3 Newtons, what is the degrees north of west
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. what is the mass of the other isotope
a 25-N block slides down a plane inclined at 21.2 degrees to the horizontal with constant velocity. find the total force resisting the motion of the block
the mean fee path of air molecules at 0 C and 1 ATM is about 2*10^-5 cm. what is the effective molecular diameter of an air molecule
a rock is thrown from edge of a cliff to 23.5 meters below, initial velocity 12.5 m/s directed at 44.5 degrees above horizontal. how long does it take for the rock to reach the ground
You are a delivery person for the Fresh Aqua Spring Water Company. Your truck carries 3 pallets. How many full cases of water can you carry on the cart
A 50.0kg crate is being pulle along a horizontal smooth surface. What is the magnitude of the normal force acting on the crate
A 2180kg satellite used in a cellular telephone network is in a circular orbit at a height of 750km above the surface of the earth. What is the gravitational force on the satellit
Suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly eleven months, as measured by a clock on board the spacecraft, how fast must you travel
A particle known as a pion lives for a short time before breaking apart into other particles. According to this hypothetical person, how far does the laboratory move before the pion breaks apart
A nuclear power reactor generates 2.80 109 W of power. In one year, what is the change in the mass of the nuclear fuel
Suppose one gallon of gasoline produces 1.1 108 J of energy, and this energy is sufficient to operate a car for 16 miles. how many miles would the car go on a single tablet
A parallel-plate capacitor in air has a plate separation of 1.42 cm and a plate area of 25.0 cm2. What is the change in energy of the capacitor
A college student who was late for his physics class drove through a red traffic light, How fast did he need to drive for a Doppler shift this large
The electric potential in a region is V=-Vo(r/R), Find expressions for the magnitude and direction of the electric field in this region
A slingshot fires a pebble from the top of a building at a speed of 14.0 m/s. The building is 28.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground
An eagle (mA = 4.3 kg) moving with speed vA = 7.8 m/s is on a collision course with a second eagle (mB = 5.6 kg) moving at vB = 10.2 m/s in a direction perpendicular to the first
A 52.6-kg skateboarder starts out with a speed of 2.16 m/s. He does 89.2 J of work on himself by pushing with his feet against the ground. Calculate the change (PEf - PE0) in the gravitational potent