Question

two
students are poised to dive off equal height dividing towers to a
swimming pool below. Student B is twice as massive as student A.
what can you say about the potenial and kinetic energies of each
student?

Answer #1

If you dive to 3 m below the surface of a swimming pool filled
with milk, (A) what is the pressure due to the milk alone? (B) What
is the total or absolute pressure at that
depth? (rmilk = 1033 [kg/m3]

Consider two cars A and B. Car
A is raised to some height h inside a service
station, and car B is speeding down the highway.
Describe the potential, kinetic, and total energies of each car.
How much work is used to raise A to height h? What
happens to the kinetic energy of B if its speed is
doubled?
Would car A gravitational potential energy
because work is done in elevating it?
Please help! Physics is like a complete...

Two equal groups of seedlings, and equal in height, were
selected for an experiment. One group of seedlings was fed
Fertilizer A, and the other group with Fertilizer B. The mean
heights of the two groups of seedlings, their standard deviations,
and sample sizes are listed below. Assume simple random sampling,
independence, and normally distributed data. Alpha =0.025.
Sample Mean
Height (inches, Std Deviation (inches), Sample
Size
Fertilizer
A 12.92, 0.25, 15
Fertilizer
B 12.63, 0.20, 13
What is the null hypothesis?
mu1 = mu2
mu1 =\= mu2...

2. Bri Smith and Joe Sullivan, two kinesiology students at ASU,
are considering the possibility of offering swimming lessons to
children at the university pool. The pool would charge a fixed
rental fee of $1500 for the 8-weeks of lessons as well as an
admission and lifeguarding fee of $7 per pupil. Bri and Joe
estimate an additional cost of $4 per pupil to hire additional
helpers. Bri and Joe plan to charge $65 per student for the 8-week
class....

Two skaters stand on friction-less ice. Ricky is more massive
than Lucy. Ricky pushes off from Lucy and they move away from each
other. Which statement below is most correct?
HINT: The total momentum of the system is zero before they push
off, so the total momentum after the push must also be zero.
Compare the two masses and the first hint statement and think about
what this does to the velocities.
CHOOSE ONE:
A) Ricky and Lucy will have...

A professor at the University of Connecticut finds that two
students in his class have identical answers on a test. While he
does not have any supporting evidence, he is confident that the two
students cheated. The professor schedules an appointment so that he
can speak with each student separately. He confronts each student
with his allegation and offers each student individually the
following: Sign a statement admitting to cheating. If both students
sign the statement, each will receive an...

Question about Discrete Structure:
Ten students are competing for scholarships. Suppose that no
student can win more than one scholarship. (Each part below is
independent of the others.)
(a) Suppose that there are three scholarships which are worth
$1000, $2000, and $5000. In how many different ways can the
scholarships be distributed?
(b) Suppose that there are three scholarships worth $2000 each.
In how many different ways can the scholarships be distributed?
(c) Suppose that there are two scholarships worth...

Here are the final marks of two separate cohorts of students
undertaking an intelligence test (100 is intelligent).Student
Scores
Cohort A
5
10
40
50
25
70
5
95
Cohort B
45
40
55
60
50
55
75
20
Mean A: 37.5
Mean B: 50.0
SY cohort A: 7550
SY cohort B: 1800
Variance cohort A: 1078.57
Variance cohort B: 257.14
(a) If you were fitting those data to bell shaped probability
curve(s), what would the curve(s) look like?
(b)...

1. Two students are kayaking on the Saint John River. Initially,
they are floating directly beside each other chatting and moving
with the river current at 1.50 m/s downstream. Student A pushes
away from Student B and sees Student B floating away from them at
1.00 m/s in the upstream direction. The combined inertia of Student
A and their kayak is 100 kg and the combined inertia of Student B
and their kayak is 120 kg. Assume that there is...

Miller Toy Company manufactures a plastic swimming pool at its
Westwood Plant. The plant has been experiencing problems as shown
by its June contribution format income statement below:
Budgeted
Actual
Sales (4,000 pools)
$
239,000
$
239,000
Variable expenses:
Variable cost of goods sold*
57,680
70,390
Variable selling expenses
16,000
16,000
Total variable expenses
73,680
86,390
Contribution margin
165,320
152,610
Fixed expenses:
Manufacturing overhead...

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