Answer:
In a collision, there is a collision force which endures for some amount of time to cause an impulse. This impulse acts upon the object to change its velocity and thus its momentum
The approximate speed of sound is about 761 mph or 335.28 meters/second.
<h3>What's the approximate speed of sound?</h3>
If we consider the normal atmosphere at sea level, the speed of sound is about 761 mph or 335.28 meters/second. The speed of sound is different in different mediums such as solid and liquid.
So we can conclude that the approximate speed of sound is about 761 mph or 335.28 meters/second.
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The three earth spheres which interact in this process are THE ATMOSPHERE, THE HYDROSPHERE AND THE BIOSPHERE.
The increase in the green house gases is destroying the ozone layers of the atmosphere, this makes it possible for more ultraviolet rays to penetrate through the atmosphere unto the earth surface. The increased temperature provided by these rays is warming up the oceans and this in turn is affecting the animals and the plants that reside in the oceans and those that depend on them. These chains of activities is changing the climate of the world and is affecting all the living things that live on the earth surface.
Answer
given,
mass of crate attached by cable A = 160 Kg
mass of crate attached by cable B = 73 Kg
acceleration of helicopter = 1.4 m/s²
tension in the cable when the move up
F = m (a + g)
tension in cable B
F = 73 x (1.4 + 9.8)
F = 73 x 11.2
F = 817.6 N
tension in cable A
F = (160 + 73 ) x (1.4 + 9.8)
F = 233 x 11.2
F = 2609.6 N
Matching each space mission with the correct milestone
- First animal in space ____________ Sputnik 2
- first person in space ____________ Vostok 1
- first person on the moon _________ Apollo 11
- first man-made object in space ____ Sputnik 1
- first American in space __________ Freedom 7
- first space station ______________ Salyut
<h3>Meaning of space mission</h3>
A space mission is a mission that takes an individual, animal, a thing or material out of earth using a spaceship. This mission is always carried out with a desire to find out more about the galaxy earth is a member of and to learn about other planets.
In conclusion, the list above is the accurate Matching of each space mission with the correct milestone.
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