Answer:
Vernier calipers is used to measure the internal diameter of a beaker
The "c) percent efficiency" could not be used to find the mechanical advantage of an inclined plane. There are two formulae that could be used to determine the mechanical advantage of an inclined plane which stated as MA = Length/rise and Wout=Win. MA is the mechanical advantage, Wout is the output force, Win is the input force, and "rise" is the height of the inclined plane<span>.</span>
Answer:
a) 0.0324 rad/s²
b) 2.01 rad/s , the final angular speed gets doubled
Explanation:
w₀ = initial angular speed = 0 rad/s
w = final angular speed = 0.16 rev/s = 0.16 (6.28) = 1.005 rad/s
t = time interval = 31 s
α = angular acceleration
final angular speed is given as
w = w₀ + α t
1.005 = 0 + α (31)
α = 0.0324 rad/s²
b)
After the acceleration is doubled
α' = 2 α = 2 (0.0324) = 0.0648 rad/s²
w' = final angular speed
w'₀ = initial angular speed = 0 rad/s
final angular speed is given as
w = w₀ + α t
w = 0 + (0.0648) (31)
w = 2.01 rad/s
yes the final angular speed gets doubled
Answer:
a = 0.13m/s²
Explanation:
Given parameters:
Weight of horse trailer = 150kg
Distance covered = 250miles
Force applied on trailer = 20N
Unknown:
Acceleration of trailer = ?
Solution:
According to newton's second law of motion,"the acceleration of a body is directly proportional to the force on it and inversely proportional to the mass" .
Mathematically;
F = m x a
where f is the force
m is the mass
a is the acceleration
Input the parameters and solve;
20 = 150 x a
a = 0.13m/s²
The answer is to the question is c
