steady winds at a speed of 8.5 m/s. The wind energy per unit mass is. less than 30 greater than 30 equal 30 non of the above O Option 2
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A: GIVEN : FORCE = F = 20 N DOWNWARD ANGLE = θ = 60o d = Δx = 40 m TO FIND : A) K.E. final = ?…
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A: Assume that the man and the Earth is an isolated system, so there is no heat transfer is occurs.
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Q: A 54-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…
A: Given:- mplayer= 50 kg vi= 10 m/s vf= 1.0 m/s yi= 0 m
Q: 2. Consider a river flowing toward a lake at an average speed of 4 m/s at a rate of 500 m3/s at a…
A: given,v=4 msρ=1000 kgm3g=9.8 ms2V=500 m3/sh=70 munit mass, m=1 kg
Q: A 67.3-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
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Q: 3. Assuming that there are no heat effects and no frictional effects, find the kinetic energy and…
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Q: QUESTION 6 How much energy does it take to lift a 100 kg box from the floor to a 1.5 m high shelf?…
A: Given: m=100 kgh=1.5 m
Q: 6) A 7.80-g bullet moving at 490 m/s penetrates a tree trunk to a depth of 4.6 cm. Use work and…
A: The mass of the bullet, m = 7.80 g = 7.80×10-3 kg The initial velocity of the bullet, vi = 490 m/s…
Q: Two locomotives, each weighing 100,000 kg and having a speed of 100 km/hr. race toward each other…
A: In an inelastic collision between two objects, the total linear momentum remains constant, but the…
Q: 5) Answer these two questions: a) List the energy conversions that occur when riding a bicycle. b)…
A: This is a question regarding the conservation of energy and the transformation of energy from one…
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Q: 3. If the potential energy of a body whose mass is 150 g at ground level is zero, calculate its…
A: Write the given values with the suitable variables. m=150 g=0.15 kgu=50 m/s Here, m is the mass and…
Q: A worker pushes a wood crate of mass 23.4 kgacross a concrete floor witha constant horizontal force…
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Q: Catching a wave, a 77-kg surfer starts with a speed of 1.0 m/s, drops through a height of 1.50 m ,…
A: To solve the problem we will use the work-energy principle. If ∆E is the change in total energy of…
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Q: 12. Find the maximum height reached by a ball thrown upward at a velocity of 95 ft/s. do not use V…
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Q: The energy consumed by a o.8okW electric drill is 45 kJ in 1. _hour/s. What is the speed of a 3.okg…
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Q: 15. A box is moved from the floor up to a tabletop but gains no speed in the process. Is there work…
A: Box is moved from the floor up to a tabletop
Q: 5. at the top of a 11.40 m high water slide you start with a. speed it 10.5 m/s and dive into the…
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Q: A 55-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…
A: The change in potential energy of the pole vaulter will be equal to her change in kinetic…
Q: coefficient of kinetic friction 1s 0.4, and the crate is pulled 5.0 m. (a) How much work is done by…
A: Given: Mass of crate, m=10.0Kg Initial speed, vi=1.5m/s Pulling force, F=100N Inclined angle with…
Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…
A: Mass, m = 11 kg Height, h1=29 m and h2=78 m Acceleration, a = -g = -10
Q: Determine the wind energy per unit mass if the winds speed is 21 Km/Hr. A- 17.014 J B- 0.810 J C-…
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Q: 3. A baseball with a mass of 0.65 kg was pitch into the air at a height of 25 meter above the ground…
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Q: 3. A piece of shattered glass falls from the 82nd floor of a building. 600 feet above the ground.…
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Q: A 69.7-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
A: We have givenMass of boy = 69.7 kg Initial speed (u)= 1.60 m/s Droping height (h)= 1.64 mFinal…
Q: A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…
A: We must use conservation of energy in this question.
Q: A 1900 kg car is initially traveling 20 m/s. The driver presses down on the accelerator pedal and…
A: The energy possessed by an object , which is in motion , with velocity v is known as the kinetic…
Q: A 41-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is…
A: Given, Mass is 41 kg, Initial speed is 11 m/s and final speed is 1.5 m/s
Q: 48-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5…
A: Given Data: The mass of the pole vaulter is: m=48 kg The initial speed is: u=11 m/s The final speed…
Q: A 71.6-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
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Q: Calculate weight parallel.
A:
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