A scientist receiving a new sample of plutonium knows that the sample will not be of use to him after 90 percent of the radioact
1 answer:
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Answer:
<u>Diagram is not so perfect</u>
<u>OR = distance travelled by the jet plane</u><u>.</u>
Step-by-step explanation:
Let point J be the jet plane and OJ be the constant height at jet plane is flying and OR be the distance jet plane is travelling.
h =
Now,
From the figure i drew (1st)
taking 60 as reference angle,
tan60° = p/b
or,
so, b = 1700m
inital distance = 1.7km(OR)
now,
tan 30 = p/b
so, b = 5100 m
so, final distance = 5.1 km(OR)
Now,
distance travelled = final distance - initial distance
distance travelled = 5.1 km - 1.7km
distance travlled = 3.4 km
Now,
time = 17 seconds
= 0.00472 hour.
Now,
speed = d/t
or, speed = 3.4/0.00472
so, speed = 720.3389km/hr
so, speed = 720 km/hr approximately
Answer: The answer is $2.77.
Step-by-step explanation: Given that we have to pay the loan of $1300 at interest rate of 7.5% in 6 months. According to the table,
Amount for interest in payment 1 = $8.13,
Amount of interest in payment 2 = $6.79
and
Amount of interest in payment 3 = $5.45.
We can see here that the difference in the amounts to be paid in consecutive months will be same, i.e., the payments will form an arithmetic progression (A.P.).
The common difference = 8.13-6.79=6.79-5.45=1.34.
Therefore, amount of interest in payment 4 = $(5.45-1.34) = $4.11
and amount of interest in payment 5 = $(4.11-1.34) = $2.77.
Please see the attached modified table.
Thus, the answer is $2.77.
