Answer: Waning
Explanation: Not much explanation for this
The magnitude of the change in momentum of the block is 0.8 kg m/s.
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Change in momentum</h3>
A change in momentum is the different between the final momentum and the initial momentum of the object.
The magnitude of the change in momentum of the block between zero and 4.0 seconds is calculated as follows;
where;
- Vf is the final velocity at 4 seconds = ?
- Vo is the initial velocity at 0 seconds = 0
From the graph the velocity at 4 seconds is calculated as;
ΔP = 2(0.4 - 0)
ΔP = 0.8 kg m/s
Thus, the magnitude of the change in momentum of the block is 0.8 kg m/s.
Learn more about change in momentum here: brainly.com/question/7538238
The missing word is "equal".
In fact, The relationship between temperature in Celsius and temperature in Kelvin is
So, the absolute value of the two temperatures are different. However, there is a direct proportionality between the temperature in Celsius and the temperature in Kelvin, this means that temperature differences are equal in both units.
Let's see this with an example: let's call
and
two different temperatures in Celsius, and let's rewrite them in Kelvin using the previous relationship:
as we can see, both the 273.15 cancel out and so the temperature difference in Celsius is equal to the temperature difference in Kelvin.
Answer:
The spring constant required = 949.2 N/m
Explanation:
The energy stored in the spring is converted to kinetic energy of the projectiles fired.
Energy stored in spring's = kx²/2
Kinetic energy of bullets = mv²/2
k = spring constant = ?
x = maximum compression of the spring = 8 cm = 0.08 m
m = mass of projectiles fired = 3.0 g = 0.003 kg
v = velocity of projectiles fired = 45.0 m/s
kx² = mv²
k (0.08²) = 0.003 (45²) = 6.075
k = 949.2 N/m
The spring constant required = 949.2 N/m
Answer:
Sedimentary rocks are usually formed under water when grains of broken rocks are glued together while igneous rocks form when melted rock (magma or lava) cools and metamorphic are rocks that once were igneous or sedimentary rocks but have been changed by pressure and temperature.