mass of 500 kg. kg. It raises a load öf 300 kg vertically at a steady speed of 0.2 m/sec. Frictional resistance can be taken to be constant at 1200 N. What is the power required? O a. 9048 W O b. 3400 W O c. 6100 W O d. 1810 W
Q: 6. It takes 500 W of power to move an object 96 m in 12 s. What force is being applied to the…
A:
Q: Which of the following is not a unit of power? a. J/s b. W⋅s c. ft⋅lbs/s d. hp
A: To find: which is not the unit of power?
Q: How long will it take a 4 hp motor to lift 400 kg piano to a sixth story window 1800 m above?
A: 1hp =746W so 4hp=4*746=2984W Mass ,m =400kg Height, h=1800m energy required to lift, E=mgh where g…
Q: 84. When is work done on an object? a. when a net force acts on an object b. when the object moves…
A: The work done on an object is W=Fnetd≠0 if Fnet≠0
Q: 7. A container factory use a 370 W motor to operate a conveyor belt that lifts containers from one…
A: Given Mass lifted m = 250 kg Displacement h = 3.6 m Time taken t= 45 s Power P = 370 W
Q: Power is defined by? Choose all that apply. A. Rate of doing work. B. force / time C. work done /…
A:
Q: You place an ice cube in a microwave oven. If it requires 32,195 J to melt the ice cube and the oven…
A: The equation for the power delivered to the microwave oven. P = Q/t the power is directly…
Q: A 4000 gram object has a kinetic energy of 50 Joules. What is the speed of the object? A. 5…
A: Given Data:- Mass of the object is m=4000 g =4000 g×1 kg1000 g =4 kg Kinetic energy of the…
Q: For each of the following, is W-R positive, negative, or zero? A B F ф B d A d B W- is is WA-B A B A
A: The expression of work done is given by, W=Fdcosϕ Here, F is the force, d is the distance traveled,…
Q: A large hoist is lifting a 2000 kg automobile. There is a gauge on the hoist that displays its power…
A:
Q: 500 joules of work was done in 10 seconds, the power used was A. 0.025 watts B. 0.025 N C. 40 N D.…
A: Given value--- work = 500 J. time = 10 sec. We need to find--- Power ?
Q: 7. Determine the power consumed (in kW) by the heating coil in the following diagram. heating coil…
A:
Q: What is the minimum power output of a small electric motor that lifts a 0.060 kg mass through 5.0 m…
A: Given data as per the question Mass to be lifted =0.060 kg
Q: You carry a 20. N bag of potatoes up a 5.0 m flight of stairs in 26 seconds. How much work was done?…
A:
Q: A 680N student runs up a flight of stairs 3.5m high in 11.4 seconds. The student takes 8.5 seconds…
A: Write the given values with the suitable variables. F=680 Nd=3.5 mt1=11.4 st2=8.5 s Here, F, d, t1,…
Q: 1/4 LITER OF WATER NITIAL TEMPERATURETIME TAKEN TO BOI a (J 33.5 90s 33.9 75s 34.1 110s AYE tHDIVOL
A: The given volume of water is 250 mL, which when converted to mass equals 250 g of water. Water boils…
Q: 94. Which of the following is a unit of energy?* O a. W O b. kg m/s O c.J O d. m/s
A: Energy : Energy is defined as the capacity of doing work.
Q: How much power does it take to do 450 J of work in 5 seconds? A. 0.011 W B. 22.50 W C.…
A: Given data: Energy, E=450 J Time, T=5 s
Q: SI unit of power is the Watt (W).
A: This question is based on Unit dimensions .
Q: How much energy is required to run a 35 W light bulb for 4.0 min? a. 840 J b. 1400 J c. 140 J d.…
A:
Q: The work required to accelerate an object on a frictionless surface from speed v to 2v is a. You…
A:
Q: A 5500 W lathe can move an iron block at a constant speed of 4.3 m/s. What is the force applied to…
A: Given Power (P)=5500 w speed(v) =4.3 ms-1 Required force(F)=?
Q: When a battery provides power to a hand-held fan, what kinds of energy are present and how do they…
A: Given: A battery operated hand held fan The law of conservation of energy states that the energy…
Q: An ice cube is placed in a microwave oven. Suppose the over delivers 105 W of power to the ice cube…
A:
Q: maximum power transfer
A:
Q: 6. A 2,500 kg airplane can accelerate on the runway from rest to 250 mph in 15 seconds. What is the…
A:
Q: What is the minimum power output of a small electric motor that lifts a 0.150 kg mass through 2.0 m…
A: Given data: Mass (m)= 0.150 lg Height (h) = 2.0 m Time (t) = 40 s Required: Power (P)
Q: If a blow dryer uses 1.1 x 10³ J of energy, and it is in use for 15 minutes, what is its power? the…
A: Given, energy consumed E=1.1x103W
Q: 5. If the sign for work is negative, * O a. Kinetic energy is increasing. O b. Kinetic energy is…
A: work energy theorem. Work done is equal to change in Kinetic energy. W = K.E 2- K.E 1 K.E. 2 -…
Q: A 60.0 kg trunk starts at rest on a student's dorm room floor. The student pushes the trunk a…
A: Solution:-Given thatmass of trunk (m)=60 kgdistance travelled by trunk (d)=10 mForce (F)=300…
Q: a. How much horsepower does a 25 W household lightbulb consume? (Express your answer using four…
A: Q. Given that Power consumed by lightbulb P = 25 W
Q: How much power is needed to lift a 750 kg elephant 14.3 m in 30.0 seconds?
A: Given data: Mass (m) = 750 kg Height (h) = 14.3 m Time (t) = 30.0 s Required: Power (P)
Q: What is the wattage of a light bulb that uses 35 J of energy in 7 s?
A: given, Energy = 35 J time = 7 s Therefore, the wattage of the light bulb =…
Q: An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube…
A: Let the power is denoted by P and the energy be denoted by E.
Q: 11. You push down on a 4.0 N box against the floor for 2 minutes. How much work was done? How much…
A: The force applied, F=4 N The time for which the force is applied, t=2 min
Q: A person does 400 J of work in 5 sec. Power of the person is calculated tto be ? Choose one correct…
A: Given, Work done by the person W = 400 J Time t = 5 sec We know the expression for power P=Wt
Q: The newton is a unit of Select one: a. motion. b. power. C. energy. d. force. O O O O
A: The newton is the International System of Units derived unit of force N= kg⋅m⋅s−2
Q: 3. Determine the work done by gravity on a 5 kg bowling ball if the bowling ball.. a) Falls straight…
A: Part A. Mass of the ball = m = 5 kg Displacement travel when falls straight down = d = 8 m…
Q: 40.) Power is the rate at which energy is transferred. work is the process of transferring energy…
A:
Q: Ima Scaarred (m=56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5-m high roller…
A: Kinetic energy is given by, K.E = (m.v2/2) Here, K.E = Kinetic energy at top m = mass of Ima…
Q: he energy efficiency of electric vehicles is usually rated in terms of the kilowatt-hours (of…
A: The kWh/100 miles rating is more important for evaluating EV running expenses than MPGe. The…
Q: You place an ice cube in a microwave oven. If it requires 32,165 J to melt the ice cube and the oven…
A: Given data: Energy (E) = 32,165 J Power (P) = 98 W Required: Time in minutes
Q: How much force is required to move a box 25 m using 689 J of energy? A. 0.036 N B. 28 N C. 17000…
A: Given data: Displacement (d) = 25 m Energy or work done (W) = 689 J Required: Force (F)
Q: 1. Why are we more tired after running upstairs in a few seconds than after walking upstairs in a…
A: Power is the rate at the energy being transferred or energy being converted from one form to…
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