In a downhill ski race surprisingly little advantage is gained by getting a running start. This...
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is because the initial kinetic energy is small compared with the gain in gravitational potential energy even on small hills. To demonstrate this, find the final speed and the time taken for a skier who skies 70.0 m along a 35° slope neglecting friction for the following two cases. (Note that this time difference can be very significant in competitive events so it is still worthwhile to get a running start.) (a) starting from rest final speed 26.2 Changed: Your submitted answer was incorrect. Your current answer has not been submitted. m/s time taken Incorrect: Your answer is incorrect. s (b) starting with an initial speed of 3.00 m/s final speed m/s time taken s
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In a downhill ski race surprisingly little advantage is gained
by getting a running start. This...
In a downhill ski race surprisingly little advantage is gained by getting a running start. This...
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is because the initial kinetic energy is small with the gain in gravitational potential energy even on small hills. To demonstrate this, find the final speed and the time taken for a skier who skies 70.0 m along a 30° slope neglecting friction for the following two cases. (Note that this time difference can be very significant in competitive events so it is still...
In a downhill ski race surprisingly little advantage is gained by getting a running start.
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is because the initial kinetic energy is small compared with the gain in gravitational potential energy even on small hills. To demonstrate this, find the final speed and the time taken for a skier who skies 75.0 m along a 35° slope neglecting friction for the following two cases. (Note that this time difference can be very significant in competitive events so it is...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
Part A-D please! (31%) Problem 1: In a potential energy on even small hills. However, you...
Part A-D please!
(31%) Problem 1: In a potential energy on even small hills. However, you will finish the race To demonstrate this, find the final speed and the time taken for a skier who skies 75 m along a much faster which is more important! cotanO asinOacos0 atan0 acotanOsinhO give up a 25% Part (c) Find the final speed (in m s) of the skier starting with a speed of 2.50 m s -a 25% Part (a) Find the...
Someone please help me with this question. I am STRUGGLING with it! Their are four parts...
Someone please help me with this question. I am STRUGGLING with
it! Their are four parts to it!
Conservation of momentum [7] Conservation of energy [8] Where the prime represents the final velocities. These two equations simplify to [9] Note that the initial speed of the plastic, Vplastic = 0. In part I, you found that the speed and momentum of the steel ball at the bottom of the ramp are 1.38 m/s and pi = 3.141592653589793 msteelvsteel = 0.0367...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
est particle of soil - Googie x Farris Rafique's Quiz History: Ho x G work equation...
est particle of soil - Googie x Farris Rafique's Quiz History: Ho x G work equation - Google S e.com/courses/162718/quizzes/144982/history2version-1 Question 7 0/0.2 pts How much work in joules was done to increase the velocity of a 3 kg ball from 7 m/s to 18 m/s? HINT: Use the Work-Kinetic Energy Theorem formula Wnet KEy - KE 137.5 0/0.08 pts rect Question 8 Complete the following statements by choosing the correct answer from the oog ×: G smallest particle of...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is because the initial kinetic energy is small with the gain in gravitational potential energy even on small hills. To demonstrate this, find the final speed and the time taken for a skier who skies 70.0 m along a 30° slope neglecting friction for the following two cases. (Note that this time difference can be very significant in competitive events so it is still...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
Part A-D please!
(31%) Problem 1: In a potential energy on even small hills. However, you will finish the race To demonstrate this, find the final speed and the time taken for a skier who skies 75 m along a much faster which is more important! cotanO asinOacos0 atan0 acotanOsinhO give up a 25% Part (c) Find the final speed (in m s) of the skier starting with a speed of 2.50 m s -a 25% Part (a) Find the...
Someone please help me with this question. I am STRUGGLING with
it! Their are four parts to it!
Conservation of momentum [7] Conservation of energy [8] Where the prime represents the final velocities. These two equations simplify to [9] Note that the initial speed of the plastic, Vplastic = 0. In part I, you found that the speed and momentum of the steel ball at the bottom of the ramp are 1.38 m/s and pi = 3.141592653589793 msteelvsteel = 0.0367...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
est particle of soil - Googie x Farris Rafique's Quiz History: Ho x G work equation - Google S e.com/courses/162718/quizzes/144982/history2version-1 Question 7 0/0.2 pts How much work in joules was done to increase the velocity of a 3 kg ball from 7 m/s to 18 m/s? HINT: Use the Work-Kinetic Energy Theorem formula Wnet KEy - KE 137.5 0/0.08 pts rect Question 8 Complete the following statements by choosing the correct answer from the oog ×: G smallest particle of...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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