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sashaice [31]
3 years ago
13

Which direction is the force of friction?

Physics
2 answers:
algol [13]3 years ago
8 0
B, friction always acts opposite
liraira [26]3 years ago
3 0

Friction always acts opposite to the motion.<em>  (B)</em>

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Urgent!!!
Luba_88 [7]

<u>T</u><u>he area w</u><u>h</u><u>ich touches the sand floor of 4 feet of the bull is less than the man.</u>

because the area of surface of contact is more in bull than in man. More is the area of contact, leads is the force or pressure affected.

5 0
3 years ago
Two objects of the same mass are on two different planets. Planet A has a force of gravity that is weaker than that of planet B.
iris [78.8K]
C) The weight of the object on planet A will be less than the weight of the object on planet B.


This happened because: when gravitational pull of a planet is weak, an object will weigh less as a result of less gravity forcing it down to the ground.
7 0
3 years ago
Can someone help me with theses
Alenkasestr [34]

Answer:

Answer to #1, is D.

Explanation:

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. This is also, a theory with the ring of fire.

5 0
2 years ago
Read 2 more answers
A small 21 kilogram canoe is floating downriver at a speed of 1 m/s. What is the canoe's kinetic energy?
tamaranim1 [39]
Kinetic energy is the energy of a moving object.
Kinetic energy can be calculated using the following equation;
K.E = \frac{1}{2} m v^{2}
where - m - mass of object
v - speed of object 
substituting the values in the equation 
K.E = 1/2 x 21 kg x (1 m/s)²
K.E = 10.5 J
8 0
3 years ago
A metal block of mass 265 g rests at a point 2.4 m from the center of a horizontal rotating wooden platform. The coefficient of
FrozenT [24]

Answer:

The minimum angular velocity of the platform what whould the block slides away is w= 2.26 rad/s.

Explanation:

m= 0.265 kg

r= 2.4 m

μ= 0.257

g= 9.8 m/s²

W= m * g

W= 2.597 N

Fr= μ * W

Fr= 0.66 N

∑F = m * ac

W+Fr = m * ac

(W+ Fr) / m = ac

ac= 12.29 m/s²

ac= w² * r

√(ac/r)= w

w= 2.26 rad/s

3 0
3 years ago
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