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a) How long does it take for sunlight to reach Pluto?
b) How long does it take for light to reach you from a lightning stroke 9.5 km away?
c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back?
d) The distance to a star is about 7.10 1018 m. If this star were to burn out today, in how many years would we see it disappear?
e) How long does it take for a radio wave to travel once around the Earth in a great circle, close to the planet's surface?
A rod 89 cm long moves in a plane perpendicular to a magnetic field of 510. G. The velocity of the rod is perpendicular to its length. Find the speed of the rod
in the experiment you will study an oscillator called a torsion pendulum. in this case the restoring force is the
A 32.0 µF capacitor is connected to a 45.0 omegacap.gif resistor and a generator whose rms output is 30.0 V at 60.0 Hz. compute The phase angle for the circuit
A HeNe (Helium-Neon) laser has a beam power of 5.00 mW at a wavelength of 656 nm. Assume the beam is focused by a lens to a circular spot whose effective diameter is 15 wavelengths of the light.
A bullet of mass 5.0 g is fired horizontallyinto a 2.3 kg wooden block at rest on a horizontal surface. At what speed is the bullet fired
A charged particle (m=5.0g, q= -70µC) moves horizontally at a constant speed of 30 km/s in a region where the free fall gravitational acceleration is 9.8 m//s^2 downward, what is the magnitude of the magnetic field in this region
in a certain region of space the electric potential is vx y z axy - bx5 cy where a b and c are positive constants. a
A young male adult takes in about 4.46 x 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. find the number of oxygen molecules in a normal breath
Determine the amount of additional work that is required to putthe payload into circular orbit at this elevation
a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find (a) the max height of the projectile
A box with a membrane down the midddle has 20 N2 moelecules onone side and 50 o2 moelecules on the other side. Calculate the change in entropy once the membrane is broken
The speed of a transverse wave on a string is 435 m/s, while the wavelength is 0.160 m. The amplitude of the wave is 1.60 mm. How much time is required for a particle of the string to move through a total distance of 1.01 km?
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