How does a pedometer help people reach their fitness goals?

Physics

1 answer:

Greeley [361]2 years ago

5 0

Answer:

Pedometers are designed to detect vertical movement at the hip and so measure the number of steps and provide an estimate of distance walked. They cannot provide information on the temporal pattern of physical activity or the time spent in different activity at different intensity.

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A 24 kg rock is resting on the floor. How much potential energy does it have?

nikitadnepr [17]

Relative to the floor it's resting on, its height is zero,
so its potential energy is zero.

Relative to the next floor down, its height could be
three or four meters, and it could have plenty of
potential energy ... if you cut out a circle in the floor
all around the rock, and let it fall to next floor down,
it could really do some damage. Look out below ! !

7 0

2 years ago

sla’s change in velocity is 30 m/s, and Hazel has the same change in velocity. Which best explains why they would have different

sweet [91]

Because acceleration depends not only on the change in velocity.
It also depends on the time during which the change occurs.
The formula is

Acceleration = (change in velocity) divided by (time for the change) .

Maybe Sla changed his velocity in 3 seconds, but Hazel
took all morning to change hers. In that case, even though
the amounts of change were equal, the times were different,
so the quotients of (change/time) were different.

8 0

3 years ago

What is non-point source pollution and why is this kind of pollution hard to monitor and control?

avanturin [10]

Answer:

When the source of pollution is widely distributive in nature, it is called as the Non-point source pollution, for example, <em>acid rain</em>.

Explanation:

the source of pollution when is <em>not concentrated over a particular area</em> or any particular defined pinpoint is termed to be as the Non - point source pollution.

this type of pollution is very hard to be monitored or controlled due to its nature of widely distributive nature of the origin. It has <em>several pathways</em> for the effect to undertake and thus the control over the effect is <em>not easily accessible. </em>

For example, during rain, the tree fall off can enter water stream from any source, either be it open lake or ponds or even street fall offs.

7 0

3 years ago

Question 2

FromTheMoon [43]

Answer:

Explanation:

When the frequency of sound changes, we hear a change in pitch. When the frequency of light changes we see a change in color.

5 0

3 years ago

When driving your car forward, your car's wheels are spinning. What is the direction of rotation of your car's wheels

Maurinko [17]

The rotation axes of a car's wheels are horizontal and perpendicular to the direction of movement when the vehicle is moving ahead. The "direction" of the wheels' rotation, or more precisely, the direction of the angular velocity vector, is then uniquely specified by a mathematical convention.

<h3>Explain the rotation of the car's wheels and its direction?</h3>

In other words, it is impossible to say whether an object is rotating clockwise or counterclockwise without also mentioning the angle from which the object is being viewed. The wheels would be said to be turning clockwise if the car passed you from left to right. However, someone on the opposite side of the street would claim that they were rotating the opposite way. However, both observers would concur on the definition of the angular velocity vector's direction.

<h3>What is angular velocity and axis of rotation?</h3>

The symbol ω represents the magnitude of the angular velocity, which is equal to 2π divided by the duration of one rotation. In other words, ω = 2π / T. But what is important is the vector's orientation. And to do that, we employ the aforementioned "Right Hand Rule." Your right hand should be held with the thumb pointing in the direction of the rotation vector and the fingers curled in the direction the wheel turns.

In order to specify the angular velocity of each component that makes up the wheel with respect to the axis of rotation, a more formal definition uses a vector cross-product.

To know more about angular velocity visit:
brainly.com/question/14611467

#SPJ4

7 0

1 year ago