Answer: V=7.43m/s
d =2.82m
Explanation:
a) For the first part, the initial velocity immediately after ejection, by using momentum conservation
before ejection, the momentum of the squid/water system is zero
there are no external forces acting on the system at the moment of ejection, so we can find the speed of the squid by noting
momentum before ejection = momentum after ejection
0 = M1U + M2V
0=-0.26 kg x 20 m/s + 0.7kg x V
where the speed of the water is taken as the negative sign, and V is the speed of the squid right after ejection, solving for V we get
V=7.43m/s
B. we use the equation vf^²=v0^²+2ad
where vf=final velocity = 0 since velocity is zero at motion's apex
v0=initial velocity = 7.43m/s
a = acceleration = -9.8m/s/s
d=height (to be found)
Therefore,
0=7.43^²+2(-9.8)d
Mathematically, it becomes
d=7.43^²/2(9.8)= 2.82m
d = 2.82m
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Explanation:
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Answer: General Motors (GM)
Explanation:
The beta is a measure of the Systematic risk that a security holds. The higher the beta, the more Systematic risk the security has. Market Beta is 1 so anything above 1 is considered to have more Systematic risk than the Market.
General Motors here has a higher beta than Exxon Mobil so has more Systematic risk than Exxon.
Answer:
A. $13,000
Explanation:
Marginal Revenue is a revenue which is received from each extra unit sold. Average Revenue of is a revenue which is from by each unit on average basis.
Monopoly firm receives maximum marginal revenue and while incurring minimum cost. It tries to maximize the marginal benefit.
Firm's profit = Quantity ( Average revenue - Average Total cost ) = 500 units ( $60 - $34 ) = 500 units x 26 = $13,000
