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3 years ago

Does a free falling object fall 2 meters in twice the time as it falls 1 meter?

1 answer:

3 0

A free-falling object has a consrant force acting on it . . . the force of gravity, or what technical experts refer to as its "weight".

Since the object has a constant force acting on it, it must constantly accelerate according to Newton's 2nd law of motion. The way this acceleration reveals itself, the object's speed is constantly increasing.

Since the object is speeding up as it falls, there are a few weird things that happen:

-- It will fall 2 meters in less than double the time for 1 meter.

-- It will fall 3 meters in less than triple the time for 1 meter.

-- It will fall 4 meters in less than quadruple the time for 1 meter, and less than double the time for 2 meters.

-- It will fall 1 meter near the bottom in less time than 1 meter near the top.

None of the choices exactly answers the question.

Choices ' a ' and ' d ' are false statements.

Choice-b is a true statement, but it isn't a "Yes".

Choice-c is kind of confused, but is probably the one you should select.

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On a distance-time graph, time is shown on the y-axis.<br> A) True<br> B) False

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Answer:

false : In distance time graph,time is shown on the x -axis

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3 years ago

Sonar signals and infrared light are are used to send messages to submarines deep under water. If we compare the two signals, wh

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What are the statement choices?

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3 years ago

Okay please help me all my assignments are due tomorrow! I need to know 5 examples of all 6 simple machines that can be found in

iren [92.7K]

Answer:

Inclined Plane – A ramp, for example a wheelchair ramp. Paired inclined planes make a pitched roof.

Wheel & Axle – On lawnmowers and wheelbarrow. Also, found in cabinet door glides and on appliances. Another common example – door knobs and even inside those locksets.

Lever – The bottle opener. Tools – the crowbar, and scissors or pliers. Double Levers – a door, a toilet seat, a broom.

Pulley – Old wood windows, some garage doors, workshop or garage lifting systems.

Wedge – The shim – used throughout the home in construction. For example, when installing doors, windows, cabinets, etc. Sometimes used to level furniture or chairs.

Screw – Like the wedge, above, well, you couldn’t build a house without screws. Certain types of plumbing valves. Plus, a jar lid is a popular example.

Now for deeper look at the simple machines found around our homes.

The hope this will be helpful.

3 0

3 years ago

A remote Internet Web page may sometimes reach your computer by going through a geostationary satellite orbiting approximately 3

soldier1979 [14.2K]

Answer:

0.24 seconds

Explanation:

The signal will reach the computer at light speed = $3\times 10^8\ m/s$

Distance between the satellite and the computer = $3.6\times 10^7m$

Since, the bodies have no acceleration relative to each other we use the following formula

Time = Distance / Time

$\text{Time}=\frac{3.6\times 10^7}{3\times 10^8}\\\Rightarrow \text{Time}=0.12\ s$

One way delay would be at least 0.12 seconds.

But when you click on a link to open a website this signal has to be first sent to the satellite then the satellite would have to send the required signal back to the computer.

Hence, the minimum time delay would be 0.12+0.12 = 0.24 seconds

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3 years ago

The fact that the total amount of energy in a system remains constant is a(n) experiment. theory. hypothesis. Or law.

Murrr4er [49]

Answer:

Explanation:

The law of conservation of energy states that the total amount of energy in a system remains constant.

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3 years ago