A. Thermometer would be the answer because you’re measuring temperature
Answer:
.team 1 a = 20.8 m/s² team 2 a = 19.2 m/s²
Explanation:
Let's use Newton's second law to calculate the acceleration of the two groups
F = ma
a = F / M
Group 1
a = 9 1354/9 65
a = 20.8 m / s²
Group 2
a = 9 1364/9 71
a = 19.2 m / s²
If the two groups pull against each other, group 1 should win, by creating a greater acceleration.
Δa = 20.8 -19.2
Δa = 1.6 m / s²
<u>Answer</u><u>:
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The velocity of the rock at the maximum height that thrown upwards at 15 m/s is 0 m/s
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</u><u>Explanation</u><u>:
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When an object is thrown upwards, it will fall back to the ground due to the earth's gravity. All objects closer to the earth's surface falls down with a constant acceleration of about 9.8m m s^{-2}. This is known as the acceleration due to gravity and is usually represented by the letter g.
An object that is thrown vertically upwards decelerates down due to the earth's gravity. Its speed gets decreased until it reaches the maximum height . At the maximum height velocity becomes zero. Then it is accelerated uniformly downwards under gravity.
Answer:
31677.2 lb
Explanation:
mass of hammer (m) = 3.7 lb
initial velocity (u) = 5.8 ft/s
final velocity (v) = 0
time (t) = 0.00068 s
acceleration due to gravity (g) 32 ft/s^{2}
force = m x ( a + g )
where
- m is the mass = 3.7 lb
- g is the acceleration due to gravity = 32 ft/s^{2}
- a is the acceleration of the hammer
from v = u + at
a = (v-u)/ t
a = (0-5.8)/0.00068 = -8529.4 ( the negative sign showa the its decelerating)
we can substitute all required values into force= m x (a+g)
force = 3.7 x (8529.4 + 32) = 31677.2 lb