Answer:
684.5 is the weight on mars and 1813 on earth
Explanation:
185*3.7=684.5 185*9.8=1813 you multiply for earth by 9.8 because that's the gravity on earth and you multiply by 3.7 because that's the gravity on mars
Answer:
a = 1.962 m/s²
Explanation:
The frictional force applied on the car can be given by the following formula:
where,
f = frictional force = ma (according to Newton's Second Law)
μ = coefficient of friction = 0.2
R = Normal Reaction = Weight of car = mg
Therefore, equation becomes:
where,
a = maximum acceleration = ?
μ = coefficient of friction = 0.2
g = acceleration due to gravity = 9.81 m/s²
Therefore,
<u>a = 1.962 m/s²</u>
Global climate change is a change in the atmosphere that occurs all over the planet simultaneously. Although these changes have occurred in certain periods in a natural way, we are currently facing global climatic changes caused by human activities, which have inconsequentially modified the natural harmony of climatic conditions.
The climate change we are currently experiencing refers to global warming, where the earth's temperature is increasing on an alarming and worrying scale. Global warming has caused the melting of the polar ice caps, harmed marine life, increased the surface temperature of the oceans, caused droughts and floods, in addition to promoting an abnormal and harmful sensation to living beings.
These changes are the result of the constant use of fossil fuels, deforestation, pollution and other human activities that have degraded nature and the atmosphere. This is because these activities, mainly the use of fossil fuels, promote a large production of carbon dioxide, which, when released into the atmosphere, causes holes in the ozone layer that protects our planet from the sun's rays. With the depletion of the ozone layer, the planet is left unprotected and receives sun rays at harmful intensities.
Therefore, we can conclude that the global climate changes that we are experiencing are the consequences of our own actions and that is why it is our responsibility to repair the damage caused by global warming and to promote measures that reduce it.
Answer:
s = 0.9689 m
Explanation:
given,
Height of fall of paratroopers = 362 m
speed of impact = 52 m/s
mass of paratrooper = 86 Kg
From from snow on him = 1.2 ✕ 10⁵ N
now using formula
F = m a
a = F/m
Using equation of motion
v² = u² + 2 a s
s = 0.9689 m
The minimum depth of snow that would have stooped him is s = 0.9689 m
B
Potential energy is the energy intrinsic of an object due to its relative position or motion, charge it holds, or stress within itself.
Explanation:
The water at the top of the hill can do work, when compared to the water at the bottom of the hill, because it is capable of acceleration, by gravity, down the hill and this kinetic energy can then be used to turn turbines to produce electricity. The higher the elevation of the summit of the hill the higher the potential energy of the water at the top. The potential difference is the difference in potential energy of the water at the top and that at the bottom (which translates to the height of the hill).
Learn More:
For more on potential energy check out;
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