Answer:
force for start moving is 7.49 N
force for moving constant velocity 2.25 N
Explanation:
given data
mass = 7.65 kg
kinetic coefficient of friction = 0.030
static coefficient of friction = 0.10
solution
we get here first weight of block of ice that is
weight of block of ice = mass × g
weight of block of ice = 7.65 × 9.8 = 74.97 N
so here Ff = Fa
so for force for start moving is
Fa = weight × static coefficient of friction
Fa = 74.97 × 0.10
Fa = 7.49 N
and
force for moving constant velocity is
Fa = weight × kinetic coefficient of friction
Fa = 74.97 × 0.030
Fa = 2.25 N
The resistance of the conductor is 0.07940 Ohms.
<h3>What is the relation between resistance and area of wire?</h3>
The wire's resistance is inversely related to its cross-sectional area; as the area drops, so does the resistance.
and it is formulated as:
where,
<em>p </em>- resistivity of the conductor (0.0214-ohm mm²/m)
R - resistance
l- length of conductor (50 feet) (15.24 m)
s - the area of the wire
Thus the resistance can be calculated as
R = 0.07940 Ohms.
Learn more about resistance here:
brainly.com/question/11431009
#SPJ4
1.46rev in 1min = 2pi*1.46revs/60s=0.152891 rad/s=ω
Fc=m*r*ω^2
Fc= 1550kg*(0.152891)^2 * 569m = 19951N
hope this helps! Thanks!
Answer:
B, 110 W
Explanation:
we can use the equation P = Fv
P = Fv
P = mav
m = 245 kg
a = (vf - vo)/t
a = (1.5 - 0)/5
a = 0.3 m/s^2
v = 1.5 m/s
P = 245 * 0.3 * 1.5
P = 110 W
answer choice B