Ask question

Ask question

All categories

3 years ago

8

Which is the truest statement? Standing is health-enhancing because it uses energy. Jogging is not a good way tp enhance your he

alth. Jogging requires less energy than swimming. Short walks dp not use enough energy to be health-enhancing

1 answer:

Setler [38]3 years ago

5 0

A. <span>Standing is health-enhancing because it uses energy.

Because standing can burn a lot of calories.</span>

You might be interested in

The earth is made mostly of metals and rocks. Where did this material come from? It was made by nuclear fission of uranium and o

Olegator [25]

This is very very cool!

5 0

3 years ago

An object is moving east with a constant speed of 30 m/s for 5 seconds. What is the object’s acceleration?

Shtirlitz [24]

Answer:

6 m/s²

Explanation:

From the question given above, the following data were obtained:

Velocity (v) = 30 m/s

Time (t) = 5 s

Acceleration (a) =..?

Acceleration is defined mathematically as:

Acceleration (a) = Velocity (v) /time (t)

a = v /t

With the above formula, we can obtain the acceleration of the object as follow:

Velocity (v) = 30 m/s

Time (t) = 5 s

Acceleration (a) =..?

a= v/t

a= 30/5

a = 6 m/s²

Therefore, the acceleration of the object is 6 m/s² due East.

7 0

3 years ago

Bill Nye- Static Electricity Answer Key?

Allisa [31]

Search it up :))))))

3 0

3 years ago

A ray of light is incident on a flat surface of a block of polystyrene, with an index of refraction of 1.49, that is submerged i

Crazy boy [7]

Answer:

21.5°

Explanation:

Given,

Refractive index of water, n₁ = 1.33

Refractive index of polystyrene, n₂ = 1.49

Angle of reflection = ?

Angle of refraction = 19.1°

Using Snell's law

n₁ sin θ₁ = n₂ sin θ₂

1.33 x sin θ₁ = 1.49 x sin 19.1°

sin θ₁ = 0.366

θ₁ = 21.5°

According to law of reflection angle of incidence is equal to angle of reflection.

Angle of reflection = 21.5°

4 0

3 years ago

A spotlight on the ground shines on a wall 15 meters away. A man 1.8 meters tall walks away from the spotlight toward the buildi

Alex17521 [72]

Answer:

$s=(15-x)m$

Explanation:

Let the distance from spotlight to wall be 15m, and distance from the man to the building be $x$ .

#Therefore the height of the shadow as a function of the above is $s=(15-x )m$

Hence, height of the shadow is expressed as s=(15-x)m

#See attached photo for illustration

6 0

3 years ago