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Light from an argon laser strikes a diffraction grating that has 5310 grooves per centimeter. The central and first order principal maxima are separated by 0.488 m on a wall 1.72 m from the grating. Determine the wavelength of the laser light.
A radioactive isotope has an activity of 8.09 mCi. After 3.05 hours the activity is 6.31 mCi. What is the half-life of the isotope?
A hoop and a disk, both of 0.46- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.2 m high and 7.0 m long. What is the speed of the hoop
A hockey puck moving at 33m/s slams through a wall of snow 38cm thick. It emerges moving at 19m/s. find the thickness of a snow wall
As measured in Earth rest frame, a spaceship traveling at 0.964c takes 10.0 years to travel between planets. How long does the trip appear to take for someone on the spaceship
As a result of the friction of tides, the earth rotates more slowly as time progresses. What is the torque(N*m) acting on the earth
Find out separation between the two sources
In the deep space between galaxies, the density of atoms is as low as 1X10^6 atoms/m^3, and the temperature is a frigid 270 K. If this volume is a cube, what is the length of its sides in kilometers
The time-varying current in an LC circuit where C = 11.9 µF is given by i(t) = (1.25 A) sin (1310t), where t is in seconds. What is the total energy of the circuit
What force must be applied to 5kg object to move it downward with acceleration 1 m/s^2. What is the direction of the applied force.
A luminous object is 4.00m for a wall. You are to use a concave mirror to project an image of the object on the wall with the image 2.25 times the size of the object, how far should the mirror be from the wall
The length of the mercury column is 4.0cm in pure melting ice and 28.0 cm in the steam. Compute the temperature for a length of 22.0.
A large metal ring has a radius of 0.30 m and a mass (uniformly distributed) of 2.5 kg. The ring hangs from a nail as shown. What is the rotational inertia of this object
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