Use physics formulas to calculate each quantity in Exer- cises 19–24. 19. The mass of an object with density 12 grams per cubic centimeter in the shape of a cylinder with radius 4 cen- timeters and height 10 centimeters. 20. The mass of an object with density 600 grams per cubic centimeter in the shape of a cone with radius 0.5 meters and height 1 meter. 21. The work required to lift an object that weighs 20 pounds to a height of 100 feet. 22. The work required to lift an object 2 feet into the air, given that the object has a weight-density of 50 pounds per cubic foot and that the object is a cylinder with radius 2 inches and height 6 inches. 23. The hydrostatic force exerted by water on the bottom of a full, 2-foot deep rectangular tank with a 3 x 4 foot base. 24. The hydrostatic force exerted by a liquid of weight-density 70 pounds per cubic foot on the bottom of a cylindrical tank with height 8 feet and radius 2 feet.

Q: A pumped water storage plant has a head of 600 m and volume 5 x 10° m². How much potential energy is…

A: Height of Storage tank equal to 600 metre

Q: You are using a 3 horsepower motor to lift a 45 kg package. How high can the package be lifted in 1…

A: The given data are: m=45 kgP=3 hp=2238 Wt=1 min=60 s Here, m denotes the mass, P denotes the power,…

Q: a spring has a natural length of 12 cm. a force of 600 dynes compresses the spring to 10 cm. Find…

A: The given data are listed below with appropriate variables. Here, F denotes the force, x denotes…

Q: How much work must be done by frictional forces in slowing a 1,599-kg car from 14.7 m/s to rest?…

A:

Q: The moon has a mass of 7.348 X 1022 kg and is 384.4 X 105 km from the Earth, which has a mass of…

A: Let mm be the mass of moon, me be the mass of earth, r be the distance between earth and moon, and G…

Q: The SI unit of work is

A:

Q: A man with 80.0 kg mass climbs a stairs with a height of 7.0 m within 15.0 seconds. What is his…

A: P=Et=mght

Q: How much work is performed by a force of 48.5 N in moving an object a distance of 7.00 m in the…

A: Given data:  Force (F) = 48.5 N Distance (d) = 7.00 m

Q: What is the general equation for potential energy due to gravity?

A: Potential energy is the energy stored when an object is taken to some height

Q: Calculate the work done in N.m if a force of 18 N pushes a mass 5 kg by 8 meters.

A: Assume that the direction of force and the direction of displacement are the same. Work done by the…

Q: If a plane has a mass of 1.4x10^6 kg, and if its speed is 1.8x10^2 m/s, what is its kinetic energy?

A: Given data:  Mass (m) = 1.4×106 kg Speed (v) = 1.8×102 m/s Required: Kinetic energy (KE)

Q: Consider the Conservation of Energy Equation: V² dE aq aw dt Ət Ət dmin + dt hin + [kJ-s] [kg-m²/s…

A:

Q: What is the numerical value for the AMA, if a ramp is 4.0m long and 2.0m high, requires an effort…

A:

Q: How long will it take a 742-kg car with a useful power output of 43.2 hp (1 hp equals 746 W) to…

A: Mass of car (M) = 742 kg  Output power of car = 43.2 hp  Power (P) = 43.2(746W) = 32227.2 W  Speed…

Q: Mass (m): Mechanical Energy (ME) = 1,000,000 J PE = 998,791 J h: v = 1.5 m/s KE: v: 55m v = 31.28…

A: At stage 1: PE = 998791 KE = Total mechanical energy - PE  KE = 1209 J KE = 12mv2 = 1209 m=1074.67…

Q: A frictionless incline has a length of 5 meters and a height of 9.55 meters.  How much work must be…

A: Given information:Length of the incline (l) = 9.55 mHeight of the incline (h) = 5 mForce on the box…

Q: Calculate the value of force applied if work done is 255 J and displacement is 15.3 m.

A: Given data :                 Work done     =    W                Displacement    =     d…

Q: How long will it take a 921-kg car with a useful power output of 57.6 hp (1 hp equals 746 W) to…

A:

Q: Calculate Work by Force F applied to mass M=3.0 Kg, producing displacement r. F = 5.1 x + 3.2 y…

A: Given: Force vector, F = 5.1 x i+ 3.2 y j            Displacement vector, r = 25x i - 12.3 y j

Q: A spring needs a force of 2 N to compress it 18 cm.  How much work is required to stretch the spring…

A:

Q: One watt-hour is equivalent to: A. 6.3 x 103 J B. 6.3 x 10-7 J C. 3.6 x 103 J D. 3.6 x 10-3 J

A: Watt is the unit of power, and hour is the unit of time. Since power is the ratio of energy and…

Q: If the product of velocity and "k" is work with units kg.m2s-2, then the dimensions of "k" are : A.…

A: The expression for work as per given condition is, W=k×v Here, W denotes work done (W) and v denotes…

Q: A contractor lifts beams (905 kg) 52 m using a 10 hp-rated crane. How much work is required to lift…

A:

Q: Let's return to our ball-Earth example, only now let's examine a case where a ball is rising in the…

A: Near the Earth's surface, the gravitational potential energy of a system consisting of the earth and…

Q: frictional forces in slowing a 1,645-kg car from 10.1 m/s to rest? Calculate to one

A: Work done = change in kinetic energy  W = ∆K  W = 1/2 m v2  Given m= 1645 kg  V final = 10.1 m/s  V…

Q: A horse plows a 150 m-long furrow in 7 min, exerting a force of 750 N. What is its power output,…

A:

Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…

A:

Q: Suppose that 3J  of work is needed to stretch a spring from its natural length of  30cm to a length…

A:

Q: If 6 J of work are needed to stretch a spring from 6 cm to 8 cm and 10 J are needed to stretch it…

A: Given: First work  W1 = 6 J. Second work  W2 = 10 J.

Q: What work is done on a level track in bringing the velocity of a train weighing 200 tons from zero…

A:

Q: Suppose a spring has a natural length of 10 inches. To extend the spring 0.25 inches, a force of 25…

A: The force needed to extend a spring is given by F = kx, where k = the spring constant x = the…

Q: Express in scientific notation (3 significant figures) a) 56,000 b) 0.000857 c) 29 d) 645.8…

A: a) 560  b) 857 × 10-6

Q: An automobile to be transported by ship is raised 6.2 m above the dock. If its gravitational…

A:

Q: Find the scalar product of the vectors in the figure below, where 0 = 119° and F = 30.0 N. 132° F…

A:

Q: If a force of 14.7 N is used to drag the loaded cart (from previous question) along the incline for…

A:

Q: A student with a mass of 61.0 kg is walking at a leisurely pace of 1.80 m/s. What is the student's…

A: question 1 : mass of student, m= 61.0 kg ; speed of the student,v = 1.80 m/s question 2: mass of the…

Q: What is the kinetic energy of a car that is traveling at 15.5 m/s if it has a mass of 1343 kg?

A: Data Given ,  A car travelling at 15.5 m/s ,  Means , velocity of the car ( V ) = 15.5 m/s Mass of…

Q: 스크린샷 2022-03-30 오후 12.01.27 An external force F moves a 2.50-kg box at a constant speed v up a…

A: Given that, Let θ be angle of inclination mass of the block (m) = 2.50 kg velocity is constant it…

Q: How much work must a 1000kg truck must produce to drive a 178km highway if an average force of 464N…

A:

Q: A lion with a mass of 116.3kilograms which started from rest speeds up to 47 meters per second in a…

A: Given: mass, m = 116.3 kg  Initial speed, u = 0 m/s (as starts from rest ) Final speed, v= 47 m/s…

Q: Work is the product of the distance an object moves and the force that causes this movement. In the…

A: We know that , work is the amount of energy transfered .So , Work =Force x Distance          J…

Q: Explain what is meant by the statement: 7he gravitational potential at vne Earth's radius above the…

A: Gravitational potential

Q: 1.2Compute the number of watts which is equivalent to 15 horsepower using the following equivalents.…

A: Power (P) = 15 horsepower To convert : The given power into units of WATTS

Q: A 95-kilogram student climbs 4.0 meters up a rope in 3.0 seconds. What is the power output of the…

A:

Q: A pair of bullocks exerts a force of 120 N on a plough. The field being ploughed is 16 m long . How…

A: Given data :                Distance   =   d                 Force   =  F        To find :…

Q: How much work does it take to stretch the spring 0.4 m?

A: If a spring is compressed by a length x by the force F then by Hooke's law…

Q: Suppose that 6 J of work is needed to stretch a spring from its natural length of 36 cm to a length…

A: