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Define a spectrum and discuss how spectra are used in astronomy.
Explain how emission and absorption lines are produced and discuss the information they convey.
Describe how the spectrum of an object emitting thermal radiation can be used to find the object’s temperature.
A ball rolls off horizontally from a table that is 1.25m with an speed of 2.31m/s. How far away is the ball from the base of the table when it hits the floor?
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, find the mass of the planet. Determine the centripetal acceleration of the moon
A bat strikes a 0.145 kg baseball. Just before impact, the ball is traveling horizontally to the right at 50.0 m/s, What is the horizontal component of the impulse the bat imparts to the ball
A car has a total mass of 1800kg. The volume of air space in the passenger compartment is 5.00m^3. The volume of the motor and front wheels is 0.750m^3 and thevolume of the rear wheels, gas tank, and trunk is 0.800m^, water cannot enter these area..
An green hoop with mass mh = 2.8 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.4 kg and radius Rd = 0.11 m. What is magnitude of the linear acceleration of the hoop
A 118 g cube of ice at 0°C isdropped into 1.0 kg of water that was originally at 84°C. What is the final temperature of the water after the ice has melted
If an electron makes a transition from the n = 4 Bohr orbit to the n = 3 orbit, determine the wavelength of the photon created in the process
how much time passes before the brick lands on the ground. If the wind speed is 26 mph, find the velocity of the plane in still air.
You are standing between two speakers that are separated by 80 m. Both speakers are playing a pure tone of 286 Hz. How fast are you running
q1. a rectangular conducting loop of wire is approximately half-way into a magnetic ?eld b out of the page and is free
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. What is the force of the water on the dolphin as it is coming to rest
The magnitude of a uniform electric field between the two plates is about 2 × 105 N/C. If the distance between these plates is 0.1 cm
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