Moe, Larry, and Curly stand in a line with a spacing of = 1.10 . Larry is 3.00 in front of a pair of stereo speakers 0.800 apart, as shown in the figure . The speakers produce a single-frequency tone, vibrating in phase with each other.What are the two lowest frequencies that allow Larry to...
A laser light of = 633nm shines on a wire and diffraction pattern is found on a screen 1m away. The distance between the first two bright fringes is 8cm. find the diameter on the wire.
You are at the top of the Empire State Building on the 102nd floor, which is located 373 m above the ground, when your favorite superhero flies over the building parallel to the ground at 60.0 % the speed of light. You have never seen your favorite superhero in real life. Out of curiosity you...
An object weighing 311 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 277 N. Immersed in oil, the object weighs 291 N. Calculate the density of the object.
A container holds 1.4 kg of water that is initially at 332 K and is converted to steam at 407 K. Assuming the volume of the system does not change, what is the change in the internal energy of the system?
A 85.1 kg base runner begins his slide into second base while moving at a speed of 5.9 m/s. The coefficient of kinetic friction between his clothes and the ground is 0.68. He slides so that he comes to rest just as he reaches the base.
A cube of ice is taken from the freezer at -7.5 C and placed in a 104 g aluminum calorimeter filled with 294 g of water at room temperature of 20 C. The final situation is observed to be all water at 19 C. What was the mass of the ice cube?
Write the statement of energy conservation for this system, and differentiate it to obtain an equation analogous to the equation md^2x/dt^2=-kx
A uniform soda can of mass 0.136 kg is 12.2 cm tall and filled with 1.26 kg of soda. Then small holes are drilled in the top and bottom (with negligible loss of metal) to drain the soda. What is the height h of the CM of the can and contents (d) If x is the height of the remaining soda at any...
A car initially traveling at 25.9 m/s undergoes a constant negative acceleration of magnitude 1.60 m/s2 after it brakes are applied. How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.330 m?
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1. Can you show me step by step how to solve this problem?:
- The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
- (a) What is the average angular acceleration of the Earth?
- (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
- A spherical balloon is made from a material whose mass is 3.00-kg. The thickness of the material is negligible compared to the 1.5-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305-degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19-kg/m^3. Find the absolute pressure of the helium gas