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Neglecting air speed, how fast must you toss a ball straight up in order for it to take 6 seconds to return to its initial level?
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A liquid (rho = 1.65 g/cm3 ) flows through two horizontal sections of tubing joined end to end. in the first section, the cross-sectional area is 10 cm2 , the flow speed is 275 cm/s, and the pressure is 1.20x105 pa. in the second section, the cross-sectional area is 2.50 cm2 . calculate the smaller sections (i) flow speed and (ii) pressure.
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please help PLEASE NOW Journal prompt to be answered in 2 fully developed paragraphs Prompt: What are some products (or programs) that you could purchase to help your performance in your current physical activity? How would the product (or program help)? Do you really think it is effective? Use specific examples from your experience.
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What pathway in the rock cycle might rock take nextv if it is subjected to uplift?
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What is the physical state of water at 250 degree centigrade
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Explain how the physical and biological components of this ecosystem in Chico, California, are being disrupted
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What is the total amount of power delivered to the heater when the heater is connected for 240-volt operation when each heater is 300 watts?
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A 200-N solid sphere 0. 20 m in radius rolls without slipping 6. 0 m down a ramp that is inclined at 34 with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?
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An assembly line has a staple gun that rolls to the left at 1. 5 m/s while parts to be stapled roll past it to the right at 2. 2 m/s. The staple gun fires 13 staples per second. How far apart are the staples in the finished part?
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When fertilizers enter surface water, they cause problems in the watershed by
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A car starting from rest accelerates in a straight line path at a constant rate of 2.5m/s.how far will it travel in 12 seconds
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A particle (q = -4. 0 C, m = 5. 0 mg) moves in a uniform magnetic with a velocity having a magnitude of 2. 0 km/s. And a direction that is 50 away from that of the magnetic field. The particle is observed to have an acceleration with a magnitude of 5. 8 m/s2. What is the magnitude of the magnetic field?
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A person who weighs 715 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 6. 20 105 Pa, what is the area of contact between each tire and the ground?
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An object is placed to the left of a converging lens. Which of the following statements are true, and which are false? a) The image is always to the right of the lens. b) The image can be upright or inverted
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A vessel is filled with a gas at a temperature 30c and a pressure of 760mmhg calculate the final pressure if the volume of the gas is double while it's heated at 80c
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A gasoline engine takes in 1. 61 10 J of heat and delivers 3700 J of work per cycle. The heat is obtained by burning gasoline with a heat of combustion of 4. 60 10 J/g. (a) What is the thermal efficiency? (b) How much heat is discarded in each cycle? (c) What mass of fuel is burned in each cycle? (d) If the engine goes through 60. 0 cycles per second, what is its power output in kilowatts? In horsepower?
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Tug-of-War During a tug-of-war, team A does 2. 20x105] of work in pulling team B 8. 00 m. What average force did team A exert?
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Bob has been asked to produce a fuse that has 3. 2 ohms of resistance. He cannot change he thickness of the wire but can change its length. Explain in detail how bob could work out what length of wire to use. You will need to describe the experiment he will need to carry out , any hazards and any variables involved
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Two asteroids each have mass of 1. 41 x 10^14 kg. The strength of the gravitational force between them is 1,030 N. Calculate the distance between the asteroids
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The what side of heart is what circuit and pumps oxygen poor blood to the what
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Cliff height you are climbing in the high sierra where you suddenly find yourself at the edge of afog shrouded cliff to find the height of this cliff you drop a rock from the top and 10.0s later hear the sound of it hitting the ground at the foot of the cliff
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A baseball is hit straight up at an initial velocity of 30m/s if the ball has a negative acceleration of about 10m/s2 how long does the ball take to reach the too of its path
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If I weigh 742. 32 N on Earth at a place where g = 9. 80 m/s2 and 5900. 91 N on the surface of another planet, what is the acceleration due to gravity on that planet?
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A puck slides on a frictionless table hitting a block. in which scenario does the puck exert the most force on the block?
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