a magician pulls a tablecloth out from under some dishes. How far do the dishes move...
Homework Answers
F =ma
=> a = 9.8*0.15 = 1.47m/s^2
S = ut +.5at^2
u =0
t =0,22
a= 1.47
s = 0+ .5*1.47*0.22^2 =0.035574m
the dishes move 3.5574cm
Add Answer to:
a magician pulls a tablecloth out from under some dishes. How far do the dishes move...
A magician wants to do the trick in which he pulls a tablecloth from a table,...
A magician wants to do the trick in which he pulls a tablecloth from a table, leaving the items on the table behind, unmoved. It turns out that this isn't magic at all, but simple physics. Let's assume that the tablecloth has to be slide horizontally a distance of 50 cm before it has slipped out from underneath a dish that lays on top of it. If the tablecloth's mass is 2 grams and the dish has a mass of...
A woman pulls a cloth out from under a 200 g bowl sitting on a table. The bowl is 30.0 cm from th...
A woman pulls a cloth out from under a 200 g bowl sitting on a table. The bowl is 30.0 cm from the far edge of the cloth, and the cloth exerts a friction force of 0.125 N on the bowl. Assume the cloth is pulled with a constant horizontal acceleration of 2.80 m/s2. What distance (in m) does the bowl travel relative to the top of the table? (Assume the cloth moves in the +x-direction and notice that it...
A team of dogs pulls a sled with a large box of food on it. The...
A team of dogs pulls a sled with a large box of food on it. The coefficient of kinetic friction between the sled and the snow is μks. a) Draw separate, carefully labeled free-body diagrams for the sled and for the box (assume the box is not strapped down, and that air resistance is negligible). b) Suppose the sled has mass ms and the box has mass mb, and that the coefficient of kinetic friction between the box and the...
You are showing your amazing physics skills at a party and pull the table clothe from...
You are showing your amazing physics skills at a party and pull the table clothe from under a pile of plates. The mass of the plates is 3.1 kg and the mass of the table clothe is 0.9 kg. The table is smooth with no friction, while the kinetic coefficient of friction between the plates and the table clothe is 0.1. How much force must you apply to have the tablecloth accelerate 10 times faster than that of the plates?
Bobby wants to move some heavy boxes up to the loft in his barn. He uses...
Bobby wants to move some heavy boxes up to the loft in his barn.
He uses a 6.25 horsepower motor to pull the boxes
a distance of 8.35 meters up a ramp
inclined at an angle of 36.2º with
respect to horizontal. The boxes have a coefficient of
kinetic friction of 0.381 as they slide along
the ramp.
a) What is the heaviest box that Bobby
can pull up the incline with this motor at a constant
speed of 76.5...
1. You have one last large 50 kg crate to move from your apt to your...
1. You have one last large 50 kg crate to move from your apt to your car and your inconsiderate roommate took the cart with him. So in order to move the crate, you tie a string to it and pull at an angle of 30° above the horizontal such that you move the crate along at a relatively constant speed. The coefficient of kinetic friction between the floor and the crate is 0.2 and the coefficient of static friction...
some help on B and C would be greatly appreciated, thanks! A magician wishes to create...
some help on B and C would be greatly appreciated,
thanks!
A magician wishes to create the illusion of a 2.57-m-tall elephant. He plans to do this by forming a virtual image of a 72.0 cm tall model elephant with the help of a spherical mirror (a) Should the mirror be concave or convex? ? concave Explain A convex mirror would magnify the image. A convex mirror would do the opposite Score: 1 out of 1 Comment: (b) If the...
You want to move some boxes down from a truck using a ramp as support. One...
You want to move some boxes down from a truck
using a ramp as support. One box has a mass of 50 kg. You are
holding it with a force F equal to 100 N. Friction is present and
the coefficient of kinetic friction is 0.2. The angle θ
= 30o
Determine the acceleration of the box.
A) zero
B) 2.8 m/s2 downward
C) 1.2 m/s2 downward
D) 3.0 m/s2 downward
F
3) Two boxes sit on a horizontal table. Box 1 (m1 = 13 kg) is attached...
3) Two boxes sit on a horizontal table. Box 1 (m1 = 13 kg) is attached to box 2 (m2 = 34 kg) by a rope. You pull on a rope attached to box 2 with a force of 55 N. The coefficient of kinetic friction between both boxes and the table is 0.11 . (a) What is the acceleration of the boxes? (b) How far will the boxes move in 6.0 seconds? Assume they start from rest.
In the figure, a T-bar ski tow pulls a skier up a hill inclined at 10.º...
In the figure, a T-bar ski tow pulls a skier up a hill inclined at 10.º above horizontal. The skier starts from rest and is pulled by a cable that exerts a tension T at an angle of 30.º above the surface of the hill. The mass of the skier is 60. ke and the effective coefficient of kinetic friction between the skis and the snow is 0.10. 30 (a) Draw the free-body diagram for the skier. (4 pts) 400...
You are showing your amazing physics skills at a party and pull the table clothe from under a pile of plates. The mass of the plates is 3.1 kg and the mass of the table clothe is 0.9 kg. The table is smooth with no friction, while the kinetic coefficient of friction between the plates and the table clothe is 0.1. How much force must you apply to have the tablecloth accelerate 10 times faster than that of the plates?
Bobby wants to move some heavy boxes up to the loft in his barn.
He uses a 6.25 horsepower motor to pull the boxes
a distance of 8.35 meters up a ramp
inclined at an angle of 36.2º with
respect to horizontal. The boxes have a coefficient of
kinetic friction of 0.381 as they slide along
the ramp.
a) What is the heaviest box that Bobby
can pull up the incline with this motor at a constant
speed of 76.5...
some help on B and C would be greatly appreciated,
thanks!
A magician wishes to create the illusion of a 2.57-m-tall elephant. He plans to do this by forming a virtual image of a 72.0 cm tall model elephant with the help of a spherical mirror (a) Should the mirror be concave or convex? ? concave Explain A convex mirror would magnify the image. A convex mirror would do the opposite Score: 1 out of 1 Comment: (b) If the...
You want to move some boxes down from a truck
using a ramp as support. One box has a mass of 50 kg. You are
holding it with a force F equal to 100 N. Friction is present and
the coefficient of kinetic friction is 0.2. The angle θ
= 30o
Determine the acceleration of the box.
A) zero
B) 2.8 m/s2 downward
C) 1.2 m/s2 downward
D) 3.0 m/s2 downward
F
In the figure, a T-bar ski tow pulls a skier up a hill inclined at 10.º above horizontal. The skier starts from rest and is pulled by a cable that exerts a tension T at an angle of 30.º above the surface of the hill. The mass of the skier is 60. ke and the effective coefficient of kinetic friction between the skis and the snow is 0.10. 30 (a) Draw the free-body diagram for the skier. (4 pts) 400...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago