A bucket begins holding 15 kgs of sand. The bucket is to be lifted to the top of a 10 meter tall building by a rope with density 0.4 kg/m. However, the bucket has a hole in it, and leaks 0.2 kgs of sand each meter it is lifted. Find the work done lifting the bucket and rope to the top of the building. Use 9.8 m/s? for gravity.

Q: Q 15) Duningjogging the velocity of blood flow is about (cm/s (10) inthe aorta, what is the kinetic…

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Q: Choose which statement describes a process in which an external force does negative work on the…

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Q: What does conservation of mechanical energy mean? A) The potential evergy remains the same B) The…

A: According to the conservation of mechanical energy, states that the total amount of the mechanical…

Q: Provide an example of a situation that would help explain the concept of "zero work", in regards to…

A: In physics the work may be defined as the dot product of force and displacement. By dot product of…

Q: A bucket is filled with cement and weighs 800 N. A motor, fixed at the roof of a high building under…

A: Given,Weight of the bucket, F = 800 Nheight of the building, h = 10 mtime, t = 5.0 s

Q: Which of the following statements is/are true? Check all that apply. The SI unit of power is the…

A: Horsepower is not the SI unit of power, the SI unit of power is the watt (the statement is False).…

Q: Which statement is not correct about potential energy? It is maximum at the bottom of a flight of…

A: According to question we need to define potential energy.

Q: An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and…

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Q: A 0.5 kg object is fired straight up with an initial speed of 200 m/s. Ignore air resistance and set…

A: Mass of object (m) = 0.5 kg Initial speed (u) = 200 msg = 10 ms2

Q: 1. Suppose a farmer binding a part of the rice terraces wants to bring two 100-kg sack of fertilizer…

A: Ans:- Image-1

Q: Two floors in a building are separated by 4.1 m. People move between the two floors on a set of…

A: Given , Difference between height of two floor of a building(Δh)= 4.1m Mass of backpack(m)= 3 kg…

Q: 28. Which of the following processes requires the most work? A person lifts a 1 kg weight 2m off the…

A: Calculate work done in each case. let g=10 m/s2 W=Fscosθ θ=angle between force and displacement…

Q: 12.5 kg object is moved from the top of shelves to bottom shelves the width of shelves is 1.5 ft…

A: Given: Mass of object m=12.5 kg Height of object h=1.5 ft                              =0.4572 m

Q: One end of a timber roof truss is supported on a brick wall but not securely fastened. The reaction…

A: Step:1* The reaction on the wall be vertical only.* Maximum capacity of inclined or horizontal…

Q: You push a block up an inclined ramp at a constant speed. There is friction between the block and…

A: As you are pushing the block up the inclined plane and there is friction which is present between…

Q: A 2.5 kg rock is released from rest at the surface of a pond 1.8m deep. As the rock falls, a…

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Q: 18. A 30.0 kg box initially at rest is pushed 5.00 m along a rough, horizontal floor with a constant…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: An unstretched spring is 10 ft long. A pull of 40 lb stretches the spring by 1/2 ft. Find the work…

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Q: 1.) A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the output erergy, in kJ…

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Q: A cow is being lifted to the top of a cliff. The cow has a mass of 450 kg and the height of the…

A: The potential energy required to lift the mass m at height h is given by,  PE=mgh Given : Mass m=450…

Q: Estimate the energy density (MJ/m3) of a pumped hydro store  that is 100 m above its power station.…

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Q: The figure below shows a wate-rslide ride in which a glider is shot by spring along a water-drenched…

A: according to given figure and data,k=3100 Nmx=3 mm=150 kgg= 10 mms2H=30 m

Q: A 36.0 kg box initially at rest is pushed 5.45 m along a rough, horizontal floor with a constant…

A: Given values: Mass, m=36.0 kg Applied force, F=150 N Coefficient of friction, μ=0.300 Distance,…

Q: A 4 kg object is fired straight up with an initial speed of 80 m/s. Ignore air resistance and set…

A: Given data: Mass (m) = 4 kg Initial velocity (v0) = 80 m/s g = 10 m/s2 Initial height (h0) = 0

Q: If you know that the density of water is 1000 kg/m3, the height of the falling water is 0 150, the…

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Q: Your job is to lift 25.0 kg packaged boxes a vertical distance of 1.0 m from the ground onto the bed…

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Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.720 m…

A: The work done is given by  W = force in the direction of displacement  x displacement  1 calorie =…

Q: A circular swimming pool full of water has a diameter of 24 ft and the sides are 5 ft high. Set-up…

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Q: Calculate the gravitational potential energy of the water in a lake of volume 100 km3 (mass = 1.0 x…

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Q: A plastic boat whose bottom surface can be approximated as a 1.5-m-wide, 2-m-long flat surface is to…

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Q: Stanley does 176 Joules of work lifting himself 0.30 m. What is Stan’s mass?

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Q: Steel ball with radius of 0.1 m lays on a bottom of the lake 5m deep. What work is needed to lift…

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Q: A car with mass of 1138 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ingnore air resistance. The…

A: Solution:   Given Values, Mass (m)=1138 Kginitial velocity(u)=0 m/sfinal velocity(v)=40…

Q: An object of mass 9.5 kg is released at point A, slides to the bottom of the 30° incline, then…

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Q: 6. Engines, including car engines, are rated in horsepower. What is horsepower? a. The force needed…

A: Horsepower is defined as power produced by the engine.

Q: Starting from rest, a horse pulls a 241-kg cart for a distance of 1.50 km. It reaches a speed of…

A: Given horse pulls a 241-kg cart for a distance of 1.50 km. It reaches a speed of 0.380 m/s by the…

Q: In a dam, water is flowing at the rate of 1400 kg/s and falls 40 m. The power is generated by the…

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Q: A steel ball of mass 0.2 kg is projected vertically upwards from the top of a building 100m high…

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Q: Hydroelectricity is generated by storing water behind a dam, and then letting some of it run through…

A: depth, h = 100 m mass, m = 10,000 kg  density, d =  1000 kg/m3  speed, v = 2 m/s

Q: Water flows down a waterfall from a height of 100m at a rate of 1000m3 /minute. Assuming the…

A: The gravitational potential energy is defined as the energy stored in any mass due to height…

Q: Figure 2 is a schematic of a pumped-storage system. How much power must be supplied to the water by…

A: Consider the given data as below. Flow rate, Q=0.085 m3s The elevation of the upper reservoir,…

Q: What horsepower must an electric motor develop to operate a pump that pumps water at a rate of 24…

A: water rate =  24 000 liters per hour efficiency = 90% gravitation force = 9.78 N

Q: Water is pumped steadily out of a flooded basement at 2.8 m/s through a hose of radius 0.1 cm,…

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Q: A pump lifts water at the rate of 6 m^3/s to a height of 120 m and the friction loss in the pipe is…

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Q: Water flows over a section of Niagara Falls at a rate of 1.30 × 106 kg/s and falls 52.0 m. What is…

A:

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”