Before we answer this question, let us first understand
what alternate hypothesis is.
The alternative hypothesis is the hypothesis which is
used in the hypothesis testing and this is opposite to the null hypothesis.
This is the test hypothesis which is usually taken to be that the observations
are the result of a real effect in an experiment.
In this case since what we want to set up is the
statistical test to see if the waves are dying down, then this means we are
trying to determine if the wave height are decreasing, so lesser than 16.4
feet. Therefore:
The alternative hypothesis would state (ANSWER)
Ha: μ less than 16.4 feet and
P-value area is on the left of the mean.
While the null hypothesis is the opposite and would state
H0: mu equals 16.4 feet
da answer is liquiddddddddd
1. A body submerged in liquid is buoyed up by the force equal to the weight of displaced liquid: Archimedes' Principal of Buoyancy.
2. If an object such as a spring is elongated by a distance of x, then the restoring force f is exerted by the object proportionate to x: Hooke's Law of Elasticity.
3. Pressure, flow speed, and height can change the rate of flow: Bernoulli's Principal.
4. Total pressure of a mix of gasses in a container is equal to separate pressures serrate gasses would exert of one occupancy: Dalton's Law of Partial Pressures.
5. Heat flow is proportionate to the gradient of temperature difference: Fourier's Law of Heat Conduction.
Answer:
Acceleration=24.9ft^2/s^2
Angular acceleration=1.47rads/s
Explanation:
Note before the ladder is inclined at 30° to the horizontal with a length of 16ft
Hence angular velocity = 6/8=0.75rad/s
acceleration Ab=Aa +(Ab/a)+(Ab/a)t
4+0.75^2*16+a*16
0=0.75^2*16cos30°-a*16sin30°---1
Ab=0+0.75^2sin30°+a*16cos30°----2
Solving equation 1
(0.75^2*16cos30/16sin30)=angular acceleration=a=1.47rad/s
Also from equation 2
Ab=0.75^2*16sin30+1.47*16cos30=24.9ft^2/s^2
Answer:
a) 0.324 m
b) -2.4 m
c) 1.08 m/s
d) -4 m/s
Explanation:
Initial position
Initial velocity
Acceleration
We need to use the following equations of motion:
a)
b)
c)
d)