Answer:
ans: 6 m/s
Explanation:
spaceship 1 has mass= 150kg
initial momentum of spaceship 1 = 900 kg•m/s
we know,
momentum = mass × velocity
so,
velocity = momentum/mass
= 900 / 150
= 6 m/s
since we know it was initial momentum so, velocity is initial speed,
Answer: red shifted/shorter/long/blue shifted
Explanation:
HELP ME WITH GEOMETRY PLEASE
Answer:
a = -1,33 m / s²
Explanation:
This problem is kinematic in one dimension, let's use the equations
v = v₀ + a t
v₀ = v - at
x = v₀ t + ½ a t²
we substitute the first in the second equation
x = (v-at) t + ½ a t²
x -v t = a t² (1 + ½)
a = (x -vt) / t² (1.5)
we calculate
a = (100 - 30 10) / 10² (1.5) =-200 / 150
a = -1,33 m / s²
Answer:
5.3 kg
Explanation:
The rope attached to the ceiling has a tension 64 N.
The rope attached to the wall has a tension T.
The rope attached to the block has a tension Mg.
Sum of the forces at the junction in the y direction:
64 sin 55° − Mg = 0
Mg = 64 sin 55°
M = 64 sin 55° / g
M = 64 sin 55° / 9.8
M = 5.3
The mass of the block is 5.3 kg.
Porque sus células están creadas diferentes que los humanos.