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As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 117 bpm, How fast are you moving with respect to the Moon
The elementary particle called a muon is unstable and decays after 2.20 ?s, as observed in its rest frame, What lifetime do you observe for the muon
If a transformer steps the voltage down from 8800 V (at the pole) to 120 V (at the building) and it is to deliver 1000 kW to the building at 80% efficiency, what is the ratio of primary turns to sec
The mass of the Sikorksky UH-60A helicopter is 9300kg. It takes off vertically at t=0. How fast is the helicopter rising 3 seconds after it takes off
A typical digital cell phone emits radio waves with a frequency of 1.9 GHz. how many photons are emitted each second
A ball with a mass of 0.620 kg is initially at rest. It is struck by a second ball having a mass of 0.370 kg, find the change in the total kinetic energy of the two balls
When a mass of 7.15 kg is attached to the spring, the spring stretches by 0.0105 m. Calculate the kinetic energy the mass possesses
Block 1, with mass m1 and speed 5.0 m/s, slides along an x axis on a frictionless floor and then undergoes a one-dimensional elastic collision with stationary block 2, How far into that region do th
A 0.540-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic motion with an amplitude of 11.2 cm. Calculate the maximum value of its speed
A slender rod with a length of 0.300m rotates with an angular speed of 8.80rad/s about an axis through one end and perpendicular to the rod. What is the induced emf in the rod
On a frictionless, horizontal air table, puck A (with mass 0.150 kg ) is moving toward puck B (with mass 0.400 kg ), What was the speed of puck A before the collision
A 8.40 kg object oscillates at the end of a vertical spring that has a spring constant of 2.45 multiply.gif 104 N/m. Calculate the frequency of the dampened oscillation
A satellite in geosynchronous orbit above the moon will go around once in 27.3 days. what is the orbital radius of the satellite
The first nuclear excited state of C12 is 4.439 MeV above the ground state. What is the threshold energy for this scattering reaction
Three 1kg masses are at the vertices of an equilateral triangle of sides 10 cm. determine the location of the center of mass (x,y)
Two 40.0 µF capacitors in parallel are connected across a sinusoidal ac generator operating at 60.0 Hz. how much current passes through each capacitor
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.3 m, What is the speed of the ball in orbit
As a space craft approaches a planet, the rocket engines on it are fired to slow it down so it will go into orbit around the planet. how long must the engines be fired
An 1590 kg car stopped at a traffic light is struck from the rear by a 873 kg car and the two become entangled. what is the speed of the entangled mass after the collision
An ultralight plane and pilot have a total mass of 168 kg, what is the net force acting on the plane and pilot
Under certain conditions, the human body can withstand an acceleration of 10 g's. What is the net force (in Newtons) acting on a person
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. determine the maximum allowed braking force
Two narrow slits are illuminated by a laser with a wavelength of 593 nm. Calculate the distance between the two slits
As a baseball is being caught, its speed goes from 25 to 0 m/s in 0.007 seconds. What is the force acting on the ball
You have a fish tank of 20.00 cm radius filled with water (n =1.33). Your pet goldfish is swimming 10.0 cm from the closest part of the tank form you. Calculate and describe the image your fish sees