A 0.5 lbm apple is thrown from the edge of a tall building with an initial speed of 20 m/s. What is the change in kinetic energy of the apple in lbf-ft if it strikes the ground at 9840 ft/min? complete solution.

Q: A block and sphere are connected by a cord that passes over a pulley as shown. Neglect friction and…

A: “Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: Evaluate the work done on a 800-kg lift by its chain to raise it 40.0 m at a uniform speed,…

A:

Q: The thrust generated by a single jet engine a for s F=59000n. It take the plane (with a mass of…

A: Given: m = 6300 kg k = 100000 N/m F = 59000 N s = 0.95 km

Q: "s. What is the maximum height of the baseball,

A: need to find Maximum  Height of the baseball

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Velcity of ball during free fall(before hitting ground)=V1=2ghHere,h=50m⇒V1=2×9.8ms2×50m⇒V1=31.305ms…

Q: The 3,000lb race car is up and running again and slides into a wall at 150mph. What is the kinetic…

A:

Q: Sam, whose mass is 68 kg , straps on his skis and starts down a 68 m -high, 20∘ frictionless slope.…

A:

Q: spsistance and take g = 10m/s?.

A: answer=17.3m/s

Q: Calculate the kinetic energy of a 425. kg boat moving at a speed of 29.4

A: Given data as per questionMass of boat, m=425 kgSpeed of boat, v=29.4 m/s

Q: A 5 cm diameter of water jet strikes a flat plate which held normal to the direction of the water…

A:

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Velocity with which ball falls on ground(from top)=V1=2ghHere,h=50mSo,V1=2×9.8ms2×50mV1=31.305ms

Q: (a) Find the useful power output of an e load a height of 450 cm in 12.0 s, if it al 5.00 m/s. Note…

A: Write the work-energy theorem as follows.

Q: A block of mass m = 1.7 kg is dropped from height h = 70 cm onto a spring of spring constant k =…

A:

Q: A body weighs 1000 lbf when exposed to a standard earth gravity ? = 32.174 ft/s². (a) What is its…

A: Given data,  Weight w= 1000 lbf.  ge= 32.174 ft/s2. gm= 1.62 m/s2.

Q: An 82 m in diameter, 1.5 MW wind turbine has a rated wind speed of 12 m/s. What is the efficiency…

A:

Q: Calculate the kinetic energy of a 425. kg boat moving at a speed of 29.4

A: Given data : Speed of boat=V Mass of boat=m   Required : Kinetic energy

Q: , it is deflected upward by a curved wing with a 60° angle. The diameter is 5.08 cm and the density…

A:

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Velocity with which ball falls on ground=Inital velocity of…

Q: 5) A ball is thrown vertically into the air at 140 fps. After 4, another ball is thrown verticall.…

A:

Q: ssuming the there are no heat effect and no frictional effects, find the kinetic energy in BTU of a…

A: To find the kinetic energy in BTU.

Q: upward in a plane inclined 30 ° from the horizontal, at a speed of 18 m / s. How fast will that mass…

A:

Q: The system consisting of objects with mass ma = 1 (kg), mg = 2,kg) and massless and frictionless…

A: Given, mA=1 kgmB=2 kg F=10t g=10 m/s2

Q: A spring with spring constant 7 N / m collects 5 grams from a toy gun can throw. The barrel of the…

A: Given:

Q: cal changed rope upon the hill with a roug t: µs = 0.6 and µx = 0.4 respectively). Af rows a 10-kg…

A: NA

Q: Water flows over a waterfall 328 Ft in height. Take 2.204 lb of the water as the syste and assume…

A:

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A:

Q: A force f exerts on a body which changes its velocity from vi to vf and body beings to move in a…

A: Consider the mass of the rotating body is "m". Write the equation for the kinetic energy due to…

Q: (d) Figure Q.4(d) shows a truck with a mass of 6000 kg travels up a 35° slope at a constant speed of…

A:

Q: Find the initial velocity of a car which is stopped in 1O seconds by applying brakes. T retardation…

A: Given:t=10 seca=-2.5 m/s2

Q: A hiker throws a stone from the upper edge of a vertical cliff. The stone's initial velocity is 25.0…

A: Given Data: The initial velocity of the stone u= 25 ms Stone is thrown at an angle θ=40°with the…

Q: Determine the work of the force when it displaces 2 m in each of the situation below: k = 10 N/m 2…

A:

Q: A cargo truck weighing 2,700 kg accelerates from 3.5 m / s to 6.2 m / s in 12.0 seconds applying a…

A:

Q: Consider the ilustrated system. A constant force of 4 N acts in the i direction on block 8. Vhat are…

A: given data: mA=9kgmB=6kgacceleration (aA) &(aB)=?? T=tention in string

Q: Prob6 conveyor belt discharges gravel into a barge as shown at a rate of 40 m³/min. If the gravel…

A: Given: Lets us consider the given data, The specific weight of gravel,γ=18860 Nm3 Conveyor belt…

Q: If a 20 hp fishing boat motor can pull a 1150 kg boat with passengers of total mass 120 kg at a…

A: Given Data→P = 10 HP =10×746 watt =7460 wattm =1150 kgmass of passangers (M) =120 kgv = 13mswe need…

Q: A car traveling at 26.0 m/s hits a bridge abutment. A passenger in the car, who has a mass of 54.0…

A:

Q: kg cruise ship A 180,600,000- decelerates at a rate of 0.588m/s², how large is the unbalanced force…

A: Given that, mass of ship = m = 180,600,000 kg deceleration of ship = a = 0.588 m/s2

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.