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Q1. A radio station broadcasts at a frequency of 600,000 Hz. Know that radio waves have a speed of 3.00 x 10^8m/s, what is wavelength of these waves?
Q2. A flight attendant pulls her 70.0 N flight bag a distance of 257 m along a level airport floor at a constant speed. The force she exerts is 37.0 N at an angle of 52.0° above the horizontal.
(a)Find out the work she does on the flight bag.
(b) Find out the work done by the force of friction on the flight bag.
(c) Find out the coefficient of kinetic friction between flight bag and floor.
Assume you are the fish. You get up every morning and weigh yourself (in water), and find you weigh 0.42 N. You, being a boxfish, are a box measuring 4.164 cm per side. You see a poor, hungry fisherman, and decide to be his dinner. You hook yourself,..
A ball is thrown upward from a platform 4.6 m high with a speed of 16 m/s, What is the magnitude of its velocity when it hits the ground
A small object of mass 2.00×10?2kg and charge 3.0uC hangs from the ceiling by a thread. obtain the tension in the thread
A 22 V battery is connected to a parallel-plate capacitor with a plate area of 0.28 m2 and a plate separation of 2.1 mm. What is the resulting charge on the capacitor
A ball of mass m is tied to a vertical (Cyclinder) post of radius R. The mass slides on a frictionless, What is the angular momentum of the ball after the string has wrapped once around the post
Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. WHat is her height above the river at her lowest point
A 460-Hz tuning fork causes resonance in the tube depicted in the figure below when the length L of the air column above the water is 18.3 and 55.8 cm, Find the speed of sound in air
In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m. The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m.
You and a friend have been given the task of designing a display for the Physics building that will demonstrate the strength of the electric force, calculate the necessary amount of charge on the marble for a reasonable ramp angle of 15 degrees
Consider a homemade capacitor, which consists of 2 8.5" x 11" aluminum foil sheets separated by 10 sheets of paper. Estimate the capacitance of this device. What effect does the paper have on the capacitance
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 deg. above the horizontal
A 3.0cm x 3.0cm parallel-plate capacitor has a 2.0 spacing. The electric field strength inside the capacitor is 1.3×10^5 V/m How much charge is on each plate
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