The claim of the study is that the average attendance at games is over 523.
Under the claim the null and alternative hypotheses are,
After the performing the test, the test yields the results that, fail to reject the null hypothesis.
As null hypothesis is fail to be rejected, then it can be concluded that there is no sufficient evidence to support the claim that the average attendance at games is over 523.
Therefore the correct answer is C: <em>There is not sufficient evidence to support the claim that the mean attendance is greater than 523.</em>
KE=(1/2)mv² ⇒ v=√(2KE/m)
Data:
KE=kenetic energy=810 J
m=mass=80 Kg
v=velocity (speed)
v=√(2KE/m)
v=√(2*810 J/80 Kg)=4.5 m/s.
answer: his speed is 4.5 m/s.
Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.
Answer:
Explanation:
x = 3 Cos (4πt + π/5)
(a) Substitute t = 3 s
x = 3 Cos (12π + π/5)
x = 3 (0.82) = 2.46 m
(b) Velocity, v = dx/dt
v = 3 (-1)(4π) Sin(4πt + π/5)
Substitute t = 3 s
v = - 37.68 Sin(12π + π/5)
v = - 37.68 (0.572)
v = - 21.55 m/s
(c) Acceleration, a = dv/dt
a = 3 (-1)(4π)(4π) Cos(4πt + π/5)
Substitute t = 3 s
a = - 473.26 (0.82)
a = - 388.21 m/s²
(d) Phase = 4πt + π/5
Substitute t = 3 s
Phase = 12 π + π/5 = 38.308 rad
(e) ω = 4π
so, 2πf = 4π
f = 2 Hz
(f) T = 1 / f = 1 / 2 = 0.5 second