Question

Ball swinging on a rope. Mass of ball is 4kg. Assuming the mass of the rope and friction are both negligible, what is maximum speed of ball as it swings? (h=2.5m) Not sure but I think its 7m/s

Answer 1

P.E = K.E
Potential energy = kinetic energy

\[\sqrt{2*gravity*height}= Velocity\]

Height = 2.5
Gravity = 10m/s

Answer 2

Take g as 9.8.so you will get the answer as 7m/s

Answer 3

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Answer 4

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Answer 5

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Answer 6

Read the poem.

Dulce et Decorum Est
by Wilfred Owen

Bent double, like old beggars under sacks,
Knock-kneed, coughing like hags, we cursed through sludge,

Answer 7

Read the excerpt of the poem. Then answer the questions.

excerpt from ''Paul Revere's Ride''
by Henry Wadsworth Longfellow

It was twelve by the village cl

Answer 8

How much does one sucrose molecule weigh in grams?

Answer 9

Herky and Elaina want to compare their investment accounts to see how much they will have in the accounts after eight years.

Answer 10

An airplane is flying at an altitude of 2,910 m, has mass of 5,320 kg, and experiences a drag force of 530 N.

Answer 11

Archery stuffff (:
(I'm not the best of course)

Answer 12

Just want to check the word order on this assignment

Answer 13

What is the main idea?
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Answer 14

Will flex seal work as a condom if needed?

Answer 15

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Answer 17

triangle congruences

Answer 18

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Answer 20

Triangle congruence

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