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a basket player releases the ball 7 ft above the floor when he is 30 ft from the basket. The ball goes through the rim of the basket (which is 10 ft above the floor) 1.5 seconds after release. Find th
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If the pitch of the sound coming out of a speaker increases, which statement is true about the sound wave?
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Charge q2 is 2.5 *10^-9 and charge q1 has mass .20 g. the separation r is 5 cm, and the angle is 15 degree. find q1 ( magnitude and sign)
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In their work on collision, Trautz and Lewis explained how chemical reactions occur and why they have different reaction rates. This work is an example of a theory because it is a well-tested, widely
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A student weighing 664 N climbs at constant speed to the top of an 12 m vertical rope in 17 s. what is the average power expanded by the student to overcome gravity?
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This morning a 1 - kw electric heater was switched on for one hour. Trace back as far as you can the various forms the energy had before it was used for heat. Assume a coal-fired power plant. Now trac
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In what type of climate do trees produce wider rings? cool and dry warm and wet cool and wet warm and dry
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lab report
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A ball is dropped from the top of a building. The gravitational force is 10 N down, and the force of air resistance is 1 N up. What is the net force?
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I need the lab report about the force table.
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A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centripetal acceleration of the car? 391 mi/h2 40.0 mi/h2 5,000 mi/h2 48,800
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A sample of 20.0 moles of a monatomic ideal gas (γ = 1.67) undergoes an adiabatic process. The initial pressure is and the initial temperature is The final temperature of the gas is What is the final
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In a summer storm the wind is blowing with a velocity of 8m/s north. Suddenly in 3 seconds, the winds velocity is 23m/s north. What is the winds acceleration?
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A 6 cm object is 8 cm from a convex lens that has a focal length of 5 cm. The image is 4 cm from the lens. The height of the image is cm.
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Calculate the potential, kinetic energy, mechanical energy, velocity, and height of the ball at the various locations.
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If the pitch of a sound decreases and the sound source is moving, is the sound source moving toward or away from the observer
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Standing at the edge of a building of height 9.2m, a woman reaches out over the edge and throws a penny vertically upward. It rises, then falls past her, hitting the ground below 2.5s after release. W
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A person is moving for 2 minutes with a constant speed of 4 m/s how far of a distance would the person cover
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An electric flux of 145 Nm2/C passes through a flat horizontal surface that has an area of 0.635 m2. The flux is due to a uniform electric field. What is the magnitude of the electric field if the fie
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What happens to the velocity of a sound wave in air if the temperature of the air increases? A.The frequency of the sound wave increases. B.The velocity of the sound wave decreases. C.The energy of th
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Vector A makes an angle of 31.7° above the positive x-axis, and vector B makes an angle of 45.0° below the negative x-axis. A = 2.97 units, and B = 1.80 units. Find A + B and A - B.
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If the frequency of a sound wave is 250 hertz and its wavelength is 1.36 meters, what is the wave's velocity? 250 meters/second
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What is the potential energy of the system composed of the three charges q1, q3, and q4, when q1 is at point R? Define the potential energy to be zero at infinity.
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Once cells with nuclei developed, organisms were able to become more complex, which allowed them to adapt to the conditions in more habitats. By which process do organisms adapt and evolve? A) mitosis
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A man out walking his dog makes one complete pass around a perfectly square city block. He starts at point A and walks clockwise around the block
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Use the momentum equation for photons found in this week's notes, the wavelength you found in #3, and Plank’s constant (6.63E-34) to calculate the momentum of this photon: .0E-27 kgm/s 1.8E-27 kgm/s
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As mentioned in this week’s notes on page 4, the electrons of an atom can occupy different energy shells within the atom (similar to how the planets all occupy different orbits around the Sun). Elec
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The density of a corn syrup is is 1.37 g/ml. How much volume does corn syrup take up if it weighs 17.3 N?
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The transverse wave shown has a wavelength of 1.5 m and is traveling in the x-direction. How long does it take the wave to travel 6.0 m in the x-direction? 0.13 seconds 0.67 seconds 2.0 seconds 8.0 se
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Estime el volumen y masa de agua que existe en un lago. La forma del lago es aproximadamente circular, tiene casi 500 metros de diámetro y se supone que tiene una profundidad promedio de 15.0 metros
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The driver of a car drives 3.00 km north, 2.00 km northeast (45.0 east of north), 4.00 km west and then 3.00 km southeast (45.0 east to north). Where does he end up relative to his starting point? Wor
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When an insect ventures onto a spiderweb, a slight vibration is set up alerting the spider. the density of spider silk is approximately 1.3 g/cm3, and its diameter varies considerably depending on the
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Find the direction and magnitude of the net force exerted on the point charge q2 in the figure. Let q=+2.0uC and d= 42cm
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The 3 characteristics of minerals are: they are liquids they are solids They are naturally occuring They are inorganic substances with a specific composition and crystal structure They are made from o
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Typical backyard ants often create a network of chemical trails for guidance. Extending outward from the nest, a trail branches (bifurcates) repeatedly, with 60˚ between the branches. If a roaming an
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Your neighbor Paul has rented a truck with a loading ramp. The ramp is tilted upward at 35 ∘, and Paul is pulling a large crate up the ramp with a rope that angles 20 ∘ above the ramp. Paul pulls
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A woman steps in front of a child to jeep him from running off.which term best descrives this example
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A famous motorcycle company has just built its first electric model. Like all vehicles, the purpose of the motorcycle is to put out kinetic energy.How much energy goes toward kinetic energy?
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The power rating of a clock is 10 W, and the cost of electrical energy is $0.15 per kilowatt-hour. Rounded to the nearest cent, how much does it cost to run the clock for one whole week?
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Monochromatic light with a wavelength of 6.4 E -7 meter passes through two narrow slits, producing an interference pattern on a screen 4.0 meters away. The first order bright band lines are 2.0 E -2 m
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The velocity of an object is equal to the distance divided by time. The equation is velocity = distance/time. If you wanted to calculate the TIME required for an object to travel a distance and you kn
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How would the absence of gravity affect the formation of planets? A The rocks and debris would take longer to accrete into a planet. B The rocks and debris would never accrete into a planet. C The roc
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ANSWER ASAPPPPPPPP BE 100% CORRECT Which of the following is not a variable property for a gas? A) mass B) density C) volume D) shape
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When an ion accelerates through a potential difference of 2330 v , its electric potential energy decreases by 7.46×10−16 j ?
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What are the (a) x- and (b) y- components of the net electric field produced at point p at y = 8.00 m?
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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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