Answer:
The volume of the cavity is 0.013m^3
Explanation:
To find the volume of the cavity, the major parameter missing is the diameter of the cavity itself. we can obtain this using the following steps:
Step one:
Obtain the volume of the cylinder by dividing the mass of the cylinder by the density.
Volume of the cylinder = 2.1 / 11.053 =0.19
Step two:
From the volume of the cylinder, we can get the radius of the cylinder.
Step three:
From the cross-sectional area, we can obtain the radius of the cavity.
Let the radius of the cavity be = r, while the radius of the cylinder be = R
CSA of cavity =
Step Four:
calculate the volume of the cavity using volume =
Recall that the cavity has the same height as the original cylinder
Because they are using all of there energy to apply the force
Hope this helps — xoxo
Answer:
27.34 (no unit)
Explanation:
26.975*82.33%+29.018*17.67%
=27.34
Answer:
a) F = 100.375 N
b) F = 38.252 N
Explanation:
a) she is accelerated from rest to a speed of 11 m/s in 8.0 s
We get the acceleration we use this equation,
v = u + at
where v is the final velocity - 11 m/s
u = initial velocity = 0 m/s (from rest)
t is time taken = 8 s
Since v = u + at
11 = 0 + a×8
8a = 11
a = 11/8 = 1.375
a = 1.375 m/s²
The force equation is given by:
F = ma
F is the force, m is mass = 73 kg and a is acceleration
F = 73 × 1.375 = 100.375
F = 100.375 N
(b) she lets go of the tow rope and glides to a halt in 21 s.
We get the acceleration we use this equation,
v = u + at
where v is the final velocity = 0 m/s (to a halt)
u = initial velocity = 11 m/s
t is time taken = 21 s
Since v = u + at
0 = 11 + a×21
21a = -11
a = -11/21 = -0.524
a = 0.524 m/s²
The force equation is given by:
F = ma
F is the force, m is mass = 73 kg and a is acceleration
F = 73 × 0.524 = 38.252
F = 38.252 N
