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nasty-shy [4]
3 years ago
13

Consider this situation: A rope is used to lift an actor upward off the stage. Of the forces listed, identify which act upon the

actor.
Normal


Gravity


Applied


Friction


Tension


Air Resistance
Physics
2 answers:
Katarina [22]3 years ago
6 0

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mrs_skeptik [129]3 years ago
4 0

Answer:

Normal

Gravity

Applied

Tension

Air Resistance

Explanation:

When a rope is used to lift an actor upward off the stage, normal force which is acting upon it will act and Gravity will also work in downward direction. Applied force will definitely act, tension force will act on the rope and air resistance will act in opposite direction.

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krok68 [10]

Yes there is.

Momentum of an object is  (its mass) times (its speed) .

6 0
2 years ago
When we apply the energy conversation principle to a cylinder rolling down an incline without sliding, we exclude the work done
NikAS [45]

Answer:

D. the linear velocity of the point of contact (relative to the inclined surface) is zero

Explanation:

The force of friction emerges only when there is relative velocity between two objects . In case of perfect rolling , there is no sliding so relative velocity between the surface and the point of contact is zero . In other words the velocity of point of contact becomes zero , even though , the whole body is in linear motion . It happens due  point of contact having two velocities which are equal and opposite . One of the velocity is in forward direction and the other velocity which is due to rotation is in backward direction . So net velocity of point of contact becomes zero . Due to absence of sliding , displacement due to friction  becomes zero . Hence work done by friction becomes zero.

5 0
3 years ago
A 5.00 kg mass is placed on top of a vertical spring, which compresses a distance of 3.13 cm. Calculate the force constant (in N
77julia77 [94]

Answer:

<h2>1567.09 N/m</h2>

Explanation:

Step one:

given data

mass m=5kg

compression x= 3.13cm to m= 0.0313m

<em>According to Hooke's law, provided the elastic limit of an elastic material is not exceeded the extension e is directly proportional to the applied force</em>

F=ke

where

k= spring constant in N/m

e= extension/compression in

Step two:

assume g= 9.81m/s^2

F=mg

F=5*9.81

F=49.05N

substitute in the expression F=ke

49.05=k*0.0313

k=49.05/0.0313

k=1567.09 N/m

<u>The force constant (in N/m) of the spring is 1567.09 N/m</u>

8 0
2 years ago
Mercury, Mars, and Earth’s moon all show evidence of heavy cratering from meteor impacts while Earth shows much less evidence of
algol [13]

Answer:

D)

Explanation:

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3 years ago
If nothing is faster than light, how did the dark get there first? O.o
erastova [34]
Nothing is faster than light. Dark is the absence of light, or indeed anything at all. ... Darkness came before light, so light had to be created to get there. It's like turning on s flashlight in a dark room: the darkness is already there, and an outside source (you/the flashlight) needs to create light.
4 0
2 years ago
Read 2 more answers
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