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(a) The distance to a star is approximately 4.50 x 1018 meter. If this star were to burn out today, in how many years would we see it disappear?
years
(b) Find how long does it take for sunlight to reach Mars?
minutes
(c) Find how long does it take for a microwave radar signal to travel from Earth to the Moon and back?
s
(d) Find 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?
(e) Find how long does it take for light to reach you from a lightning stroke 9.1 km away?
the star vega has a measured angular diameter of 3.24 mas milliarcseconds and a flux of 2.84 x 10-8 wm2. its distance
A therapist examines the range of motion of an thlete's knee joint during her rehabilitation from a knee injury, What was the angular displacement of the leg from full extension to full flexion
a harmonic sound of wavelength 40cm is resonating in the first overtone of an organ pipe which is closed at one end and open at the other. what is the length of the pipe
What's your normal body temperature? It may not be 98.6°F, the oft-quoted average that was determined in the nineteenth century. What is the difference between these averages
q1.a 8.0-m long wire with a mass of 10 g is under tension. a transverse wave for which frequency is 570 hz the
If it is known that an electric dipole is located at the origin andthat its E-field at the point P(2[m], 30°, 90°) isE=4âθ[V/m], find the magnitude and direction of the dipole momentp.
An electron moving along the x axis has a position given by x = 16 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops
Show that the SI units for Planck's constant (h) are equal to the SI units of angular momentum. Calculate the magnitude of the Bohr radius
The crankshaft in a race car goes from rest to 3480 rpm in 2.7s. What is the crankshaft's angular acceleration
Consider a weathered rock or soil particle lying on a slope. How would the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope.
A thin, hollow 60.0 g section of pipe of radius 10.0 cm starts rolling (from rest) down a23.5° incline 5.40 m long. If the pipe rolls without slipping, what will beits speed at the base of the incline
Suppose a 29.5 kg child sits 1.89 m to the left of center on the same seesaw as the problem you just solved. Find the mass of the second child
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