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igor_vitrenko [27]
2 years ago
6

What is the formula for calculating velocity/speed?

Physics
2 answers:
Marina CMI [18]2 years ago
8 0

Explanation:

For velocity,

displaacement/time taken

For speed,

diatance travelled/time taken

andrezito [222]2 years ago
3 0

Answer:

Miles/hour (miles per hour)

Explanation:

Speed is how far you go and how long it takes you to go that far.

For example (ignoring air drag) you would need to go 8 miles per second to put yourself in orbit around the earth (this is known as the escape velocity).

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Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions
Slav-nsk [51]
It makes a cycloid pattern in parametrics if that's what you're asking~
5 0
3 years ago
The y-axis of a position-time graph represents__________.
Sladkaya [172]

Answer:position relative to the starting point

Explanation:

5 0
3 years ago
A machine does 1000 J of work in 3.5 minutes (210 seconds). What is
irina [24]

Answer: 4.76 watts

Explanation:

Work = 1000 J

Time = 3.5 minutes (210 seconds)

Since the SI unit of time is seconds, 210 seconds will be used in calculation.

Power output of the machine = ?

Recall that power is the rate of doing work. Thus, power is Workdone divided by time taken.

i.e Power = (work/time)

Power = 1000J/210seconds

Power = 4.76 watts

Thus, the power output of the machine is 4.76 watts

4 0
3 years ago
An elephant of mass 2800kg has feet of average area of 200 cm2. A vulture of mass 12 kg walks beside the elephant on a muddy are
hoa [83]

Explanation:

The formula we are going to use is

Pressure = F/A

Elephant:

First, we need to convert weight into newtons.

1kg=9.8 newtons, so 2800kg × newtons = 27440newtons

For 4 feet= 200×4= 800cm^2

Convert the area to meter squared using the following:

1 centimeter squared = 0.0001 meters squared

800cm^2×0.0001= 0.08m^2

Pressure=F/A

Pressure= 27440/0.08

The pressure exerted on the ground by the elephant is 343000 Pascals.

Vulture:

12kg×9.8=117.6newtons

for 2 feet= 2.0×2=4cm^2

4×0.0001=0.0004m^2

117.6/0.0004= 294000 Pascals

To compare the pressure, just do a ratio of the elephant's pressure to vulture's pressure.

343000/294000≈ 1.17

So the pressure is about 1 times bigger.

Keep in mind that the elephant has 4 feet, which help to increase the area which in turn decrease the pressure. 

7 0
3 years ago
Which of these is a measure of how much force is applied to an object from gas particle bouncing into it?
IrinaK [193]

Answer:

Pressure

Explanation:

The measure of how much force is applied to an object from gas particle bouncing into it is called pressure.

Pressure is defined as the force per unit area on a body.

Mathematically;

             Pressure  = \frac{Force}{Area}

The pressure of a gas is the combined force with which gas molecules bombard a unit area of the wall of the container. It is the sum of all tiny pushes on the wall of the container.

Various units of pressure are atm, mmHg, torr, pascal e.t.c

4 0
3 years ago
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