Answer:
Given that
ωo = 4.7 rad/s
α = −0.25 rad/s²
θ₀ = 0
a)
For maximum turn angle ,the final angular (ω)speed of wheel should be zero.
ω² = ω²o - 2 α θ
0² = 4.7² - 2 x 0.25 x θ
θ=44.18 rad ≅44 rad ( max)
b) and c)
We know that
θ = 1 /2 θmax
θ = 22 rad
By solving above equation we get
t= 32.12 s
t=5.47 s
d) and e)
θ = -9.9 rad
By solving above equation we get
t= - s
t= 39.6 s
Answer:
The length and the magnification of this telescope are 41 cm and 0.108.
Explanation:
Given that,
Focal length of first lens f= 4.0 cm
Focal length of other lens f'= 37 cm
We need to calculate the length of the telescope
Using formula of length
Put the value into the formula
We need to calculate the magnification of the telescope
Using formula of the magnification
Put the value into the formula
Hence, The length and the magnification of this telescope are 41 cm and 0.108.
Answer:
Developmental psychologists
Explanation:
Developmental psychology is defined as the scientific study that why and how a person change over their entire lifespan. It explains that how the thinking, behavior and feeling of a person changes throughout their life.
Parent have great influence on their child's mindset and there are several instances where parent's thinking determine what their child become in near future. For example, during toddler-hood babies learn to walk and talk and with time development of language take place which is largely determined by the behavior, thinking and feeling of parent.