Answer:
a) Vin(r,θ)=(-Vo/3)+(4Vo/3R^2)r^2P2cosθ
b)σ(θ)=((Voεo)/3R)(20P2cosθ-1)
Explanation:
Due to the complex variables used to solve this exercise, the solution and the explanation are in the image
Answer: C.
)in the backyard with bright sunlight
Explanation: its better for the rose plant.
Answer:
65.87 s
Explanation:
For the first time,
Applying
v² = u²+2as.............. Equation 1
Where v = final velocity, u = initial velocity, a = acceleration, s = distance
From the question,
Given: u = 0 m/s (from rest), a = 1.99 m/s², s = 60 m
Substitute these values into equation 1
v² = 0²+2(1.99)(60)
v² = 238.8
v = √238.8
v = 15.45 m/s
Therefore, time taken for the first 60 m is
t = (v-u)/a............ Equation 2
t = (15.45-0)/1.99
t = 7.77 s
For the final 40 meter,
t = (v-u)/a
Given: v = 0 m/s(decelerates), u = 15.45 m/s, a = -0.266 m/s²
Substitute into the equation above
t = (0-15.45)/-0.266
t = 58.1 seconds
Hence total time taken to cover the distance
T = 7.77+58.1
T = 65.87 s
Answers:
1) Time it takes to travel to the moon
Velocity 
is defined as:
Where:
is the average distance from Earth to the Moon
is the velocity of the spacecraft
the time
Isolating :
This is the time in hours
2) Time in days
A day is equivalent to 24 hours:
Hence:
This is the time in days
3) Time in months
A month is equivalent to 30.4 days:
Hence:
This is the time in months
Answer:
An instrument for measuring the density of liquids.
Explanation:
A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water.
Thermohydrometers is one type of hydrometer.
