The force of friction is 399.7 N
Explanation:
The force of friction acting on the bear is given by
(1)
where
is the coefficient of friction
N is the normal reaction exerted by the plane on the bear
The normal reaction can be found by analyzing the forces acting in the direction perpendicular to the plane: in fact, the bear is in equilibrium along this direction, so the normal reaction must balance the component of the weight perpendicular to the plane:
where:
m = 900 kg is the mass of the bear
is the acceleration of gravity
is the angle of the incline
Substituting everything into (1), we find the force of friction:
Learn more about inclined plane and frictional force here:
brainly.com/question/5884009
#LearnwithBrainly
Answer:
height = 25.51
Explanation:
here's the explanation in attachment.
Answer:
Temperature of the hot reservoir is 1540K
Explanation:
0.2=({T_c}+308-{T_c})/{T_c}+308
.2({T_c}+61.6=308
0.2{T_c}=246.4
{T_c}=1232
recall from equation 1
{T_h}=308+1232
{T_h}=1540K
I believe your answer would be v=26.3m/s . Can you mark me brainliest please I’m trying to rank up:)
The answer is D
Hope this helped!