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Work and Energy
Page 5
Questions (3,219)
When lifting a bag of sugar up to the shelf.First one shelf then lifted to the second shelf higher shelf based on the numbers
7 answers
asked by
Linda Emory
82 views
B12. A Production Engineer student man wishes to load a refrigerator onto a truck using a ramp at angle @ as shown in Figure 4.
2 answers
asked by
Sandra
63 views
A person pushes a box. He applies force of 400 newtons, and he pushes the box for a distance of 4 meters. After he stops
3 answers
asked by
Yur
219 views
How do u calculate the work done on an object when you push it
1 answer
asked by
Yur
101 views
A 66.7-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m
4 answers
asked by
Ashley
4,348 views
A 62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7m/s. Determine the work done.
I've already answered &
5 answers
asked by
Kayla
1,733 views
A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure.
Find the work done by the
3 answers
asked by
Jenna
1,010 views
A rope is used to pull a 3.57 kg block at constant speed 5.10 m along a horizontal floor. The force on the block from the rope
3 answers
asked by
help!
2,046 views
Questions LLC
Ask a New Question calculate the work done when a person pushes a car from its stationary position to a distance of
1 answer
asked by
aa
90 views
A plane weighing 236 kN (24.1 tons) lands on an aircraft carrier. The plane is moving horizontally at 66.8 m/s (149.4 mi/h) when
1 answer
asked by
Sara
122 views
Force and Work Unit Test
9 of 129 of 12 Items Question Use the table to answer the question. Machine Output Work (J) Input Work
1 answer
asked by
brielle
151 views
A gardener pushes a lawn roller through a distance of 20 m. If he applies a force of 20 N in a direction inclined at 60° to the
4 answers
asked by
Deadrea
128 views
_____ is measured by the force required to move an object times the distance it moves it.
1 answer
asked by
J
86 views
_____ is measured by the force required to move an object times the distance it moves it.
Work Distance Mass Force Velocity
1 answer
asked by
J
90 views
Force and Work Unit Test
1 of 121 of 12 Items Question A person pushes a box. He applies a force of 400 newtons, and he pushes
20 answers
asked by
IWannaBeADawg
582 views
Calculate the power of a pump that is required to lift 360kg of water through the height of 3m in 1minute
2 answers
asked anonymously
56 views
Calculate the work done when a 15
kg object was lifted through a vertical distance of 300cm .
1 answer
asked anonymously
50 views
A force of 30 N is applied to a ball, and it takes the ball 1.5 seconds to travel 4 meters. What is the work done on the ball?
3 answers
asked by
meli
203 views
If one knows how fast work is done, what can one calculate?
energy distance power force
1 answer
asked by
mir
77 views
How much work is required for a 30 kg dog to pull a sled 50 meters?
Work = force x distance a 150 Joules b 1.7 Joules c 0.6
1 answer
asked by
social studies
96 views
4.6) The force acting on a particle is Fx = (8x − 16) N, where x is in meters. (a) Make a plot of this force
versus x from x =
7 answers
asked anonymously
88 views
A motor vehicle weighs 7000N traveling along a level road at a constant speed of 20m/s . When it comes to a hill , which rises
1 answer
asked by
Daliso
78 views
How do you calculate the work don on an object when you push it
1 answer
asked by
Austin
144 views
A man of mass 2000g climbs a flight of stairs of 20 steps, covering a distance of 560mm in 1 hour. Calculate the power expended
2 answers
asked anonymously
53 views
A 50-N force acts on a 2-kg crate that starts from rest. When the force has been acting for 2 s the rate at which it is doing
5 answers
asked by
VitaX
8,046 views
Six and one-half foot-pounds of work is required to compress a spring 4 inches from its natural length. Find the work required
4 answers
asked by
Ray
3,972 views
A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W.
(a) How
4 answers
asked by
Maria
1,793 views
A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at
2 answers
asked by
Otto
782 views
(Q1)How much work is done when a bucket of mass 1.5kg with 10g of water in it is pulled up from the bottom of a well 8m deep?
4 answers
asked by
ikye
601 views
Karen has a mass of 48.2 kg as she rides
the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a
4 answers
asked by
anna
1,418 views
A grocery cart with a mass of 18 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a
3 answers
asked by
Luricela
1,157 views
a 4-kg box is pushed across a level floor with a force of 60n for a displacemen of 20m then lifted to a height of 3 m. what is
3 answers
asked by
kelsie
2,874 views
A machine has a velocity of 6 and is 80% efficient.what effort will be needed to lift a load of 300N with the aid of this
10 answers
asked by
Dorothy
3,382 views
A sphere of radius 3 feet contains grain with a depth of 5 feet. The grain inside weighs 5 pounds per cubic foot.
Find the amount
4 answers
asked anonymously
182 views
what power is expended by a weightlifter when lifting a 60kg barbell a vertical distance of 1.1m in a time interval of 2.0s
4 answers
asked by
Joyce
3,083 views
A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass.
4 answers
asked by
Fiona
1,388 views
A force acting on an object does NO work if:
a the object accelerates b the force is greater than the force of friction c the
1 answer
asked by
dv
169 views
a piece of furniture that weighs 500 newtons is pushed along the ground for a distance of 10 meters then lifted 2 meters above
4 answers
asked by
elizabeth
1,548 views
A person gets a running start toward a wall from 5 meters away. The person pushes the wall with a force of 500 newtons, but the
3 answers
asked by
who dat
339 views
When shoveling dirt, the output work is _____.
A.the force you exert on the shovel times the output distance B.greater than the
6 answers
asked by
Jospeh
2,606 views
a teacher pushed a 98 newton desk acrosss a floor for a distance of 5 meters she exerted a horizontal force of 20 newton How
4 answers
asked by
Barb
1,740 views
A fuel oil tank is an upright cylinder, buried so that its circular top 12 feet beneath ground level. The tank has a radius of 6
4 answers
asked by
Daniel
5,177 views
how much work is done by each force acting on vacuum cleaner as it is pulled horizontally 3 m at a constant speed by a force of
3 answers
asked by
kennedy
438 views
check answers
1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done? A. 0.040 j
67 answers
asked by
Matt
15,248 views
A tank in the shape of an inverted right circular cone has height 5 meters and radius 4 meters. It is filled with 2 meters of
4 answers
asked by
Anonymous
5,181 views
how much work is being done a bookshelf being pulled 5 meters at an angle of 37 degrees from the horizontal? The magnitude of
3 answers
asked by
Maddie
751 views
A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal
5 answers
asked by
Anonymous
2,010 views
A student has six textbooks, each with a thickness of 4.0 cm and a weight of 30 N. What is the minimum work the student would
3 answers
asked by
Kels
853 views
A record company executive is on his way to a TV interview and is carrying a promotional CD in his briefcase. The mass of the
2 answers
asked by
Megan
867 views
A rescue cable attached to a helicopter weighs 2 lb/ft. A 190 lb man grabs the end of the rope and is pulled from the ocean into
4 answers
asked by
Carl
1,484 views
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