A man lifts a 12 kg bucket of water at constant speed, from the bottom of a hole that is 17m deep. Ignore the mass of the rope . The work done by the man to lift the bucket is what? 1. 2000J 2. 1000J 3.200J 4. 120J 5. 0J

Q: A trough is 4 m long, 5 m wide, and 2 m deep. The vertical cross-section of the trough parallel to…

A:

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

A:

Q: How much energy is needed to change the speed of a 1200 kg of a car from 15.0 m/s to 30.0 m/s?

A: Work energy theorem We know from the conservation of energy law that energy can neither be created…

Q: You have a spring with a spring constant 6660 N/m.  a) If you want to store 265 J of energy in this…

A: a. the energy store in the spring can be expressed as U=12kx2 here k is the spring constant and x is…

Q: If a source of energy such as a solar power plant provides 1 gigawatt of power, many joules is that…

A:

Q: The opposite of a wind turbine is an electric fan: The electric energy that powers the fan is…

A: The fan is putting 1.0 J of kinetic energy per sec. kinetic energy per sec is the power delivered.…

Q: A bucket full of sand has a mass of 20 kg (including the bucket and the sand). The bucket is to be…

A:

Q: A student is riding a bicycle at a constant speed of 4.29 m/s on a level road. The mass of the…

A: Data provided:   Constant Speed (v) = 4.29 m/s Frictional and drag force (Fr) = 31.6 N Asked: The…

Q: A spherical soap bubble with a surface-tension of 0.005 lbf/ft is expanded from a diameter of 0.5 in…

A:

Q: A marathon runner is running across a bridge. The runner has 10,000 J of kinetic energy, and 20,000…

A: Mechanical energy is the energy that is possessed by an object due to its motion or due to its…

Q: In the diagram below, a box is subjected to two forces and is displaced horizontally by a distance…

A:

Q: A circular tank that has a diameter of 16 m and sides that are 8 m high contains water with a depth…

A: The diameter of a circular tank is 16 m. The height of the sides is 8 m. The depth of water is 3 m.…

Q: A pump is required to lift a mass of 810 kgkg of water per minute from a well of depth 14.1 mm and…

A: Answer:-  Given,  Mass(m) = 810 kg water per minute  Height (h) = 14.1 m  Speed (V) = 18.1 m/s…

Q: 3. A trough, full of water, is 1m long and its cross section is a triangle which is 3m high and 2m…

A: A trough is filled with the water assuming that its density is 1000kg/m3.The vertical cross-section…

Q: Which of the following is true    A. When work is done BY the system, work is denoted as positive,…

A: We know the work done in thermodynamics system is given as, W = PdV The first law of thermodynamics,…

Q: A man lifts a pail of water of mass m= 3 kg upward at a constant speed of 2 m/s for 5 s. What is the…

A: Given that: Mass of the pail of water, m=3 kg Speed , v=2 m/s time taken, t= 5s

Q: If the gravitational potential energy of 5 Kg rock is 980 J. How high is the rock above the ground?…

A: Given: The mass of the rock is m=5 kg. The gravitational potential energy of rock is E=980 J.…

Q: What is the work done on a 3 kg cart that accelerates from 5 m/s to 20 m/s. (A 22.5J (B 45J c)…

A: Given data:  Mass (m) = 3 kg Initial velocity (Vi) = 5 m/s Final velocity (Vf) = 20 m/s Required:…

Q: 7. A cone of radius 6m and height 3m has volume 367 m3. A cone of radius 3m and height 12m has the…

A: Given, height of first cone is, y = 3m radius of first cone is, r = 6m Since the first cone is built…

Q: A leaky bucket which initially has 20 L of water and leaks at a constant rate is hanging from a 60 m…

A:

Q: Steel ball with radius of 0.09 m lays on a bottom of the lake 5 m deep. What work is needed to lift…

A:

Q: O. 14 : Work done in blowing a soap bubble of diameter 2 cm, is (S.T. = 3 x 10-² N/m) (a) 7.54 x 10…

A: To find-Work done (W)=?Given-Diameter of soap bubble D=2 cmRadius =D2=22=1 cmRadius(r)=1×10-2…

Q: A bucket of water of mass 30 kg is pulled at constant velocity up to a platform 50 meters above the…

A:

Q: A 43-cm-long vertical spring has one end fixed on the floor. Placing a 2 kg physics textbook on the…

A: It is given that

Q: Bob drives a 3500kg truck off a cliff at an initial speed of 11m/s. The truck hit the bottom of the…

A: Answer Truck initial speed u = 11 m/s Truck mass m = 3500 kg  Truck final speed v = 18m/s

Q: Steel ball with radius of 0.11 m lays on a bottom of the lake 4 m deep. What work is needed to lift…

A:

Q: A car of 1100 kg mass changes the speed from 5 m/s to 6 m/s. What is the work done (in J) by the car…

A: Given, Mass of car m = 1100 Kg Initial speed of car u = 5 m/s Final speed of car v = 6 m/s

Q: A 73-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops…

A:

Q: A curious little girl held a 0.23-kg stone 1.2 m above the top edge of a water well and then dropped…

A:

Q: Don't use Artificial intelligence tools. Only Handwritten solutions are allowed. Mechanical…

A: This total energy per unit weight includes all the potential energy, kinetic energy, and pressure…

Q: A spring has a spring constant k. When the spring is stretched through 1 cm, the potential energy…

A: To write the expression for potential energy is,        U=12kx2

Q: HINT (a) How much net work (in J) is required for the cheetah reach its top speed? 28166 (b) One…

A: According to question--- Given data --- Mass m = 59 kg. Initial speed u = 0 m/sec. Final speed v =…

Q: Suppose you lift a 20 kg box by a height of 1.0 m. a) How much work do you do in lifting the box?…

A: Part-a Given: The height upto which the box is lifted h = 1 m. The mass of the box m = 20 kg.

Q: student is riding a bicycle at a constant speed of 4.19 m/s on a level road. The mass of the student…

A:

Q: A 5-kilogram object fell free from a height of 3 meters. What is the kinetic energy of the moment it…

A: According to the conservation of mechanical energy, the total change in mechanical energy of an…

Q: work is required to pump all the water over the top of the tank

A:

Q: * Two narrow slits are used to produce a double-slit interfer- ence pattern 0.90 mm, and the…

A: Answer             6.136 * 10-7 m

Q: A 10 m chain is hanging from a tall building. The chain has a density of 1.5 kg/m. At the bottom of…

A:

Q: An aquarium 15m long, 4m wide, and 6m deep is full of water. The density of water is 1000kg/m³ and…

A:

Q: A bathtub in the shape of a hemispherical bowl of diameter 6 feet is filled with water. How much…

A: Consider a small portion of water in the hemispherical tub with thickness dy at height y from the…