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When a person visits the local tanning salon, they absorb photons of ultraviolet light (UV) to get the desired tan. What are the frequency and wavelength of a UV photon whose energy is 6.5 x 10^-19 J?
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Question: A simple pendulum oscillates with frequency f. (a) What is its frequency if the entire pendulum accelerates at 3/4g upward? (b) What is its frequency if accelerates at 0.75g downward? The response must be typed ...
An artillery shell is fired at an angle of 48.1? above the horizontal ground with an initial speed of 1920 m/s. The acceleration of gravity is 9.8 m/s2. Find the total time of flight of the shell, neglecting air resistan ...
Question: A 30.0kg- box is being pulled across a carpeted floor by a horizontal force of 230N, against a friction force of 210N. What is the acceleration of the box? How far would the box move in 3s, if it starts from re ...
Question: A projectile is fired with speed (V0) at an angle theta) from the horizontal as shown in the figure . Part B: What is the range of the projectile? Express the range in terms of (V0, theta, or g) Part C: Find th ...
Question: A picture frame hung against a wall is suspended by two wires attached to its upper corners Part A: If the two wires make the same angle with the vertical, what must this angle be if the tension in each wire is ...
Question: A particle of charge 5.05nC is placed at the origin of an xy-coordinate system, and a second particle of charge -2.04nC is placed on the positive x-axis at x= 4.04cm . A third particle, of charge 6.00nC is now ...
Question: The speed of sound in air at 20 C is 344m/s. (A) What is the wavelength of a sound wave with a frequency of 784 Hz, corresponding to the note G5on a piano? (B) How many milliseconds does each vibration take? (C ...
Question: The position of a mass oscillating on a spring is given by x = (6.6cm) cos[2Ït/(0.69s)]. Part A: What is the frequency of this motion? Express your answer using two significant figures. Part B: When is the mas ...
Question: A sump pump is draining a flooded basement at the rate of 0.500 L/s, with an output pressure of 3.00 ✕ 105 N/m2. Neglect frictional losses in both parts of this problem. (a) The water enters a hose with a 3.0 ...
Question: A rocket starts from rest and moves upward from the surface of the earth. For the first 10s of its motion, the vertical acceleration of the rocket is given by ay=(3.00m/s3)t, where the +y-direction is upward. W ...
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