Answer:
4m/s
Explanation:
due to newtons second law of motion
the accelerations that result when a 12-N net force is applied to a 3-kg object. A 3-kg object experiences an acceleration of 4 m/s/s.
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Answer:
15.7 N
Explanation:
Draw a free body diagram. The block has four forces acting on it. Gravity pulling down, normal force pushing perpendicular to the plane, friction pointing up the plane, and applied force F pushing up the plane.
Sum of the forces normal to the plane:
∑F = ma
N − mg cos θ = 0
N = mg cos θ
Sum of the forces parallel to the plane:
∑F = ma
Nμ + F − mg sin θ = 0
F = mg sin θ − Nμ
Substituting:
F = mg sin θ − mgμ cos θ
F = mg (sin θ − μ cos θ)
Given mg = 87.0 N, θ = 24.1°, and μ = 0.25 (because the block is not moving):
F = 87.0 N (sin 24.1° − 0.25 cos 24.1°)
F = 15.7 N
Answer:
Organisms that use energy from the sun to make their own food are called autotrophs
Explanation:
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Answer:
H=10.93 m
Explanation:
Given that
h'= 0.75 m
r= 1.5 m
ω = 3 rev/s
ω = 3 ₓ 2 π rad/s
ω = 6 π rad/s
Speed of the ball when it releases from the rope,V.
V= ω x r
V= 6 π x 0.75
V=14.13 m/s
We know that acceleration due to gravity always in downward direction.
The final speed will be zero
h = 10.18 m
So the height from the ground,H = h' + h
H= 10.18 + 0.75 m =10.93 m
H=10.93 m
Answer:
Answer:B Or the second one
Explanation:
it all stayed consistant.
