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A softball having a mass of 0.30 kg is pitched horizontally at 120 km/h. By the...
Constants | Periodic Table A softball having a mass of 0.40 kg is pitched horizontally at 110 km/h. By the time it reaches the plate, it may have slowed by 14 %. Part A Neglecting gravity, estimate the average force of air resistance during a pitch, if the distance between the plate and the pitcher is about 18 m. Express your answer using two significant figures. ΟΙ ΑΣΦ ? Ffr = N
A softball having a mass of 0.25 kg is pitched horizontally at 112 km/h. By the time it reaches the plate, it may have slowed by 8 percent. Neglecting gravity,estimate the average force of air resistance during a pitch, if the distance between the plate and the pitcher is about 15 m.
. A pitcher throws horizontally a fast ball at 129 km/h toward home plate, which is 18.1 m away. Neglecting air resistance (not a good idea if you are the batter),find how far the ball drops because of gravity by the time it reaches home plate.
Problem 7.12 Part A 0.145-kg baseball pitched horizontally at 37.1 /s strikes a bat and is popped straight up to a If the contact time is 2.90 ms, calculate the magnitude of the average force on the ball during the contact. height of 59.5 m. Express your answer using two significant figures F- Submit My Answers Give Up Part B Calculate the direction of the average force on the ball during the contact. Express your answer using two significant figures....
How much work must be done to stop a 1500 kg car traveling at 80 km/h ? Express your answer using two significant figures. h ΚΑΙ ΑΣφ ? W = Submit Request Answer Provide Feedback <Assignment 6 Problem 7.38 Part A If it requires 55 J of work to stretch a particular spring by 1.8 cm from its equilibrium length, how much more work will be required to stretch it an additional 45 cm? Express your answer using two significant...
100 km 03: A crate having mass of 50 kg falls horizontally off the back of the flatbed truck, which is traveling at 120 km/h. If the coefficient of kinetic friction between the road and the crate is 0.24. Find the distance the crate slides on the road until its coming to rest. The initial speed of the crate is the same as the truck, 120 km/h.
A0.16 kg pinecone falls 16 m to the ground, where it lands with a speed of 13 m/s Part A How much work was done on the pinecone by air resistance? Express your answer using two significant figures. μν ΑΣφ J Previous Answers Request Answer Submit x Incorrect; Try Again; 5 attempts remaining Part B What was the average force of air resistance exerted on the pinecone? Express your answer using two significant figures ΕΠ ΑΣφ |F
Two railroad cars, each of mass 58000 kg kg and traveling 85 km/h km/h in opposite directions, collide head-on and come to rest. Two railroad cars, each of mass 58000 kg and traveling 85 km/h in opposite directions, collide head-on and come to rest. Part A How much thermal energy is produced in this collision? Express your answer to two significant figures and include the appropriate units. HÅR O ? E = 2.19.10 Submit Previous Answers Request Answer * Incorrect;...
5 kg/s through an insulated circular duct such that the (gauge) pressure immediately downstream of a blower is 10 kPa. You may neglect the impact of elevation change in your analysis. Air flows at 0 Part A If the pressure at a downstream location within the duct is measured as 8 kPa, estimate the change in the temperature of the air that would be expected between upstream and downstream locations three significant figures. Express your answer VAE uT vec AT...
Learning Goal Part A-Time for the Car to Reach 100 km/h ? To apply the concepts of impulse and momentum to problems involving unknown forces, velocities, and times. Find the time it will take for the car to reach u 100 km/h from rest. A new rear-wheel drive automobile design is being tested and you have been asked to estimate its performance. The car without wheels (i.e., the body) has a mass of mc 1450 kg. The wheels (including tires)...