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Two thin parallel slits that are 0.0116 mm apart are illuminated by a laser beam of wavelength 585 nm. (a) on a very large distant screen, what is the total number of bright fringes (those indicating
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The ignition temperature of 87-octane gasoline vapor is about 430 ∘c and, assuming that the working gas is diatomic and enters the cylinder at 20 ∘c, determine the maximum compression ratio of the
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The double pulley shown is attached to a 10-mm-radius shaft that fits loosely in a fixed bearing. knowing that the coefficient of static friction between the shaft and the poorly lubricated bearing is
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One of the fastest recorded pitches in major-league baseball, thrown by joel zumaya in 2006, was clocked at 101.0 mi/h (fig. p3.22). if a pitch were thrown horizontally with this velocity, how far wou
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Light illuminates two closely spaced thin slits and produces an interference pattern on a screen behind. how will the distance between the fringes of the pattern differ for red light and blue light?
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75-kg of water that is initially at 0.5 mpa and 30 percent quality occupies a spring-loaded piston–cylinder device. this device is now cooled until the water is a saturated liquid at 100oc. calculat
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If the diameter of the space station is 830 m , how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?.
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39 for an fcc single crystal, would you expect the surface energy for a (100) plane to be greater or less than that for a (111) plane? why?
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Current passes through a solution of sodium chloride. in 1.00 second, 2.68×1016na+ ions arrive at the negative electrode and 3.92×1016cl− ions arrive at the positive electrode. part a what is the
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A wall has a negative charge distribution producing a uniform horizontal electric field. a small plastic ball of mass 0.0242 kg, carrying charge of −103 µc, is suspended by an uncharged, nonconduct
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ANSWER ASAPPPPPPPPPPPPPPP Pressure waves passing through the liquid outer core are: A) bent B) reflected C) absorbed D) canceled
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A turtle crawls along a straight line, which we will call the x-axis with the positive direction to the right. the equation for the turtle's position as a function of time is x(t) = 53.5 cm + (2.01 cm
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A plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. when the angle of elevation is π/4, this angle is decreasing at a rate of π/3 radians p
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ANSWER ASAPPPPPP Rocks that are melted by heat and then cooled are classified as: A) igneous B) sedimentary C) metamorphic
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ANSWER ASAPPPPP Evan finds a rock while hiking. It has a fossil in it. The rock is most likely a(n): A) igneous rock B) sedimentary rock C) metamorphic rock
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A mass initially at rest, spontaneously decays into two masses both traveling at 3/5 the speed of light. what fraction of the original mass was lost in the decay?
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ANSWER ASAP The gravitational force between two objects: A) is always the same B) will decrease if either object gains mass C)will increase if the objects are moved closer together
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David keeps harping over any problem that he comes across at work. He goes over the details regarding the problem repeatedly. In the end, David is confused about the problem, and is therefore unable t
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(THE SUBJECT IS LANGUAGE ARTS I NEED HELP I'LL GIVE BRAINLIEST) In this discussion, you will talk about belonging to a place and of the information, or understandings, that belonging involves. What mu
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Match the type of fitness with the correct example. 1.an exercise that stretches your back 2.lifting a heavy object 3.a fast walk in the park 4.a jumping exercise that makes you breathe hard 5.to
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SOMEONE PLZ HELP ME OUT ILL GIVE 30pts Match the vocabulary word with the correct definition. 1. obstacles or difficulties that prevent exercise -regular exercise 2. conditioning that strengthens th
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David is driving at a steady 29.0m/s when he passes Tina. I go is sitting in her car at rest. Tina accelerates at a steady 2.5m/s^2 at the instant David passes. I what is her speed as she passes him
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Snowboarding cautiously down a step slope at a speed of 7.0 m/sec, sarah, whose mass is 50. kilograms, is afraid she won't have enough speed to travel up a slight uphill grade ahead of her. She extend
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A virtual image has a ____ image distance (q) and is located in ____ of the lens. a. positive, front c. negative, front b. positive, back d. negative, back
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What was formed when the when the pacific and north american plates converge? A. Mountain St. Helens B. The Mid-Atlantic Ridge C. The San Andreas fault D. The Hawaii Islands
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A 60kg skier starts at the top of a ten meter high slope. at the bottom she is traveling 10 m/s. how much energy does she lose to friction?
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A student makes measurements from which she calculates the speed of sound as 327.66m/s She estimates that her result is accurate to +-3% Which of the following gives her result expressed to the approp
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Which of these is true regarding weight but NOT mass? Question 1 options: a.Weight is based on density, mass is not. b.Weight is proportional to volume, mass is not. c.Weight changes based on inertia,
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PLZZ HELP ASAP!!! 20pts How do fossils tell scientists about the past environment? How would they know if there was once water, when water no longer is present?
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An electron is introduced to an electric field with a strength of 3uN/C. Find the force acting on the electron dueto the field.What is the force between two protons that are 1cm apat? Is the farce rep
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A hot air balloon with a mass of 400 kilograms moves across the sky with 3200 joules of kinetic energy. The velocity of the balloon is
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A 100-kg boulder sits on the top of a 50-meter high cliff. It falls off. How fast is it traveling just before it hits the ground? A. 31 m/s B. 490 m/s C. 98 m/s D. 245 m/s
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A car is moving with a velocity of 20 meters/second has 1.8 x 10^5 joules of kinetic energy what is the mass of the car
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Cereal plants gain chemical potential energy as they grow. Which form of energy is converted to create the chemical potential energy? gravitational potential energy kinetic energy light energy thermal
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Which best compares a brush and a commutator in an electric motor? A- Both rotate when the motor is on. B- Both carry electrical current from a power source. C- Both remain stationary when the motor i
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The red supergiant Betelgeuse has a diameter of 1,680,000,000 km. If Betelgeuse is located 197 parsecs (pc) away, what is its apparent size (in arcseconds)?-- Note: The attached image shows multiple e
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The force of attraction or repulsion between two magnetic poles is similar to which of the following laws? Biot-Savart Force Law Coulomb’s Law Ohm’s Law Faraday’s Law
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Which best described how the current scientific model of the atom was developed? the model was the result of hundreds of years of experiments recent experiments invalidated most of the work of the las
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. Calculate the tensional force in a 5 m length of string that whirls a 2.5 kg mass at 15 m/s in a horizontal circle?
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If you are skateboarding and have to make a sharp turn to avoid a branch, in which direction are you accelerating?
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When a psychologist describes a developing culture as “primitive,” what bias are they displaying? A. sexism B. ethnocentrism C. racism D. xenocentrism
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A d.c. self-excited shunt generator has a field resistance of 160Ω. The generated emf is 420V and it supplies a load of 55kW Calculate the armature resistance when the generator terminal voltage is
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Calculate the slip of a 2 pole 3 phase induction motor when the supply frequency is 50 Hz and the rotor current frequency is 2 Hz.Full workings please and readable formatThanks
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A simple pendulum has wooden bob. If it is replaced by a copper Bob of same size,will there be any change in it's time period ? Explain
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A 16.03 piece of iron absorbs 1086.75 joules of heat energy and its temperature changes from 25 degrees C to 175 degrees C calculate specific heat of iron
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I question wasn't answer how long will a tongue piercings close I had mine about 7 years and been out about 5 years
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Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.Which best describes her numbers?5.7 km/h north and 5.8 km/h west are instantaneous speeds, whi
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How does the anatomy of the endocrine and integimentary systems correlate with the sense organs? what role does radiology and utilizing nuclear medicine play in this line of care?
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A force of 15 N is applied to a spring, causing it to stretch 0.3 m. What is the spring constant for this particular spring?
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The amount of fuel used to heat and cool your home can be reduced by good ____? A- Recycling B- conservation C- efficiency D- capacity E-fans F-misters G- insulation H-fission Please help me asap I'm