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A brick of mass 1.19 kg is attached to a thin (massless) cable and whirled around in a circle in a vertical plane. The circle has a radius of 1.42 m. The cable will break if the tension exceeds 45.0 Newtons. What is the maximum speed the brick can have at the bottom of the circle before the cable will break?
You ionize a hydrogen atom with a photon with wavelength 77.5nm. What orbital was the electron in before ejection
What is the gauge pressure (in kPa) of the air in the tires when its temperature rises to 26.5°C and its volume increases to 1.70 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
A hydrogen atom in the ground state absorbs a 20 eV photon. What is the speed of the liberated electron
A Coast Guard cutter detects an unidentified ship at a distance of 20.2 km in the direction 16.7° east of north. The ship is traveling at 24 km/h on a course at 40.1° east of north. The Coast Guard wishes to send a speedboat to intercept the vesse..
A 24 cm long wire with a linear density of 16.5 g/m passes across the open end of a 87 cm long open-closed tube of air. If the wire, What is the fundamental frequency of the wire
The skater farthest out has a mass of 58.0 kg and is 7.80 m from the pivot. He is skating at a speed of 6.40 m/s. Find out the magnitude of the centripetal force that acts on him.
Calculate the size of the smallest object on Mars that this telescope can resolve. Assume Mars is at its closest distance 7.8 × 1010 m from the Earth
A slide projector has a lens of focal length 150. mm. An image 100. cm × 100. cm is formed of a slide whose dimensions are 50.0 mm × 50.0 mm
Find out the type of mirror and how far the object is
Your temperature is 98.4 degrees fahrenheit. what is the wavelength corresponding to the largest intensity
A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
A 65-g ice cube at 0°C is placed in 665 g of water at 30°C. What is the final temperature of the mixture
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