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labwork [276]
3 years ago
7

G problem 2.68 determine the magnitude of the resultant force.

Physics
1 answer:
laila [671]3 years ago
7 0
Abbs as sbsbbbdb sbsb
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A space vehicle is traveling at 2980 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The
Strike441 [17]

Answer:

3054.4 km/h

Explanation:

Using the conservation of momentum

momentum before separation = 5M × 2980 Km/h where M represent the mass of the module while 4 M represent the mass of the motor

initial momentum = 14900 M km/h

let v be the new speed of the motor so that the

new momentum = 4Mv and the new momentum of the module  = M ( v + 94 km/h )

total momentum = 4Mv + Mv + 93 M = 5 Mv + 93M

initial momentum = final momentum

14900 M km/h = 5 Mv + 93M

14900 km/h = 5v + 93

14900 - 93 = 5v

v = 2961.4 km/h

the speed of the module = 2961.4 + 93 = 3054.4 km/h

8 0
3 years ago
Humans have 46 chromosomes. The cells created by meiosis have
alukav5142 [94]
Meiosis creates the gamete cells, because these cells are used in reproduction they only have 26 chromosomes two of these cells join together to make a full 46 chromosomes.

Hope this helps! :)
7 0
3 years ago
How do particle motion and temperature change as a material absorbs heat?
mylen [45]
The particle motion increases, and temperature increases. Hope this helps GIVE ME BRANLIST
5 0
3 years ago
2. Turn off the Parallel line and turn on the Line through focal point. Move the light bulb around. What do you notice about the
MArishka [77]

Answer:

The group of light rays is reflected back towards  the focal point thereby producing a magnifying effect.

Explanation:

8 0
3 years ago
A block of wood measuring 2.75 cm x 4.80 cm x 7.50 cm has a mass of 84.0 g. will the block of wood sink or float in water?
KIM [24]
The volume of the block of wood is given by length × width ×height
 = 2.75 × 4.80 × 7.5
 = 99 cm³
Density is given by mass/volume
Thus = 84.0 g/ 99 cm³
         = 0.848 g/cm³
Hence;  since the block is less dense than water (1 g/cm³) it will float
6 0
3 years ago
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