In Jamaica, if you drop a steel ball weighing five pounds from a height of 45 inches, will it fall more rapidly through water at 20 degrees Fahrenheit or water at 40 degrees Fahrenheit. Or will it make no difference? -Riddles

In Jamaica, if you drop a steel ball weighing five pounds from a height of 45 inches, will it fall more rapidly through water at 20 degrees Fahrenheit or water at 40 degrees Fahrenheit. Or will it make no difference? -Riddles
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1 Answer

Answer :

40 degrees Fahrenheit. At 20 degrees Fahrenheit the water would be ice.
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In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by aslowly falling body weighing 40 kg through a height of 4 m. The process isrepeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglectingthe heat capacity of agitator, the temperature of water (in °C) is(A) 40.5(B) 34.4(C) 26.8(D) 25

Description : In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated ... temperature of water (in °C) is (A) 40.5 (B) 34.4 (C) 26.8 (D) 25

Last Answer : (B) 34.4

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Dynamite is a tool that can be used to cut down trees. To cut a tree 18 inches in diameter requires five sticks of dynamite: one on the north, south, east and west sides of the tree, and the fifth stick on the side to which the tree should fall. During construction of a dam, a tree 18 inches in diameter was completely covered by water. Since the treetop was fouling the boat's propellers, it had to be cut down. A diver went down and put a stick of dynamite on the four sides of the tree. Since the current is flowing south at 2 knots per hour, on which side of the tree would you instruct the diver to put the fifth stick of dynamite if you wanted the tree to fall north? -Riddles

Description : Dynamite is a tool that can be used to cut down trees. To cut a tree 18 inches in diameter requires five sticks of dynamite: one on the north, south, east and west sides of the tree, and the ... you instruct the diver to put the fifth stick of dynamite if you wanted the tree to fall north? -Riddles

Last Answer : It doesn't matter where the fifth stick is placed, since the tree won't fall in any direction. Being wood, it will float and rise to the surface.

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Brad stared through the dirty soot-smeared window on the 22nd floor of the office tower. Overcome with depression he slid the window open and jumped through it. It was a sheer drop outside the building to the ground. Miraculously after he landed he was completely unhurt. Since there was nothing to cushion his fall or slow his descent, how could he have survived the fall? -Riddles

Description : Brad stared through the dirty soot-smeared window on the 22nd floor of the office tower. Overcome with depression he slid the window open and jumped through it. It was a sheer drop outside the building ... nothing to cushion his fall or slow his descent, how could he have survived the fall? -Riddles

Last Answer : Brad was so sick and tired of window washing, he opened the window and jumped inside.

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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

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The wavelength associated with a golf ball weighing `200 g` and moving at a speed of `5 m h^(-1)` is of the order

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Is it universally consistent that wherever the Metric system is used, temperature is registered in Celsius, and wherever the Imperial system (feet, inches, miles) is used, the Fahrenheit system is used? Are there any exceptions?

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A man takes a barrel that weighs 20 pounds, and then puts something in it. It now weighs less than 20 pounds. What did he put in the barrel? -Riddles

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As i was standing on a weighing machine inside a lift it recorded 50 kg wt. Suddenly for few seconds it recorded 45 kg wt.

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Your a bus driver. At your first stop, you pick up five people. At the second stop you pick up two people. At the third stop you drop off three people. At the fourth stop you pick up three more people. At the fifth stop you drop off 8 people. How old is the bus driver? -Riddles

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Last Answer : Your the bus driver so he is your age.

Imagine Johnny, a party clown, is carrying three pieces of gold each piece weighing one kilogram. While taking a walk he comes to a bridge which has a sign posted saying the bridge could hold only a maximum of 80 kilograms. John weighs 78 kilograms and the gold weighs three kilograms. Johnny reads the sign and still safely crossed the bridge with all the gold. How did he manage this? -Riddles

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Vertical drop fall is satisfactory for a height upto (A) 0.5 m (B) 1.5 m (C) 3.5 m (D) 5.0 m

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I am 2 in 54, five letter word, I am known as wild and some say unpredictable. I can raise you victorious or drop you too failure? What am I? -Riddles

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If a rock weighing 2200 N is dropped from a height of 15 m what is its KE just before it hits the ground Remember weight is measured in newtons (N) and is equal to mass times gravity.?

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A child weighing 50 Newtons is on a swing. He goes from a minimum height of 0.2 meters to a maximum height of 1.5 meters. His maximum speed is closest to: w) 3 meters per second x) 5 meters per second y) 7 meters per second z) 9 meters per second

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Last Answer : ANSWER: X -- 5 METERS PER SECOND

A man is standing on a weighing machine in a lift which is moving. The weighing machine will show minimum reading when, the lift is moving A. In a free fall due to failure of the lift mechanism B. Upward with uniform acceleration C. Downward with uniform acceleration D. Upward with uniform speed

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Last Answer : ANSWER: A

A man is standing on a weighing machine in a lift which is moving. The weighing machine will slow MINIMUM reading when, the lift is moving? A. Upward with uniform speed B. Downward with uniform acceleration C. In a free fall due to failure of the lift mechanism (Answer) D. None of these

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A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1is (A) -1.87 (B) 0 (C) 1.26 (D) 3.91

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Last Answer : (B) 0

You are in your home, and your air conditioning is broken. The temperature in your house is 40 degrees. To warm yourself up, do you stand in an acute corner, or an obtuse corner? -Riddles

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A ball is allowed to fall freely from a height of 3 metres on to a fixed plate. If the successive rebound heights are h1, h2, h3 a.5 metres b.4.25 metre c.0.5 metre d.1 metre e.Zero

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Last Answer : a. 5 metres

How many seconds does it takes the ball to fall to the ground with height of meters?

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Last Answer : It would depend on the size of the ball and height you weredropping it from.

How many seconds does it takes the ball to fall to the ground with height of meters?

Description : How many seconds does it takes the ball to fall to the ground with height of meters?

Last Answer : It would depend on the size of the ball and height you weredropping it from.

What 37.3 degrees Celsius in Fahrenheit?

Description : What 37.3 degrees Celsius in Fahrenheit?

Last Answer : 37.3ºC = 99.1ºF

Is 11 degrees Fahrenheit cold?

Description : Is 11 degrees Fahrenheit cold?

Last Answer : Yes

What is 36.5 degrees Celsius to Fahrenheit?

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Last Answer : It is 97.7 degrees Fahrenheit

If a thermometer indicates 30 degrees Celsius what's the temperature in degrees Fahrenheit?

Description : If a thermometer indicates 30 degrees Celsius what's the temperature in degrees Fahrenheit?

Last Answer : Start by taking the number in Celsius and multiply it by 9. Then divide that number by 5, and then add 32. This is how you convert Celsius to Fahrenheit or use the equation F = (9/5)C + 32In this case, the answer is about 86 degrees Fahrenheit.

What is -7 degrees Fahrenheit equal to in celcius?

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Last Answer : -7 F converts to -21.67 C