1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksandr82 [10.1K]
4 years ago
13

Which describes how the talk test is used to check exercise intensity?

Physics
1 answer:
Masteriza [31]4 years ago
5 0
I believe if you are so out of breath that you cannot talk while exercising, your exercise level is too intense. Intensity in exercise is how hard you work out. For example sprinting up a flight of stairs over and over again would be a high intensity workout. To measure the intensity of exercise one method would be to monitor the heart rate of the individual undertaking the exercise
You might be interested in
The volume of a container is reported as 3.49 ft3. what is the volume in units of in3?
Kobotan [32]

The volume in units of 6.03x10^3 in3

1ft = 12 inch

So to convert foot into inches we have to multiply by 12

The volume of container = 3.49ft^3

=3.49×12×12×12

= 6030.72 in^3

<h3>What is the volume of a container?</h3>

The amount of space a container encloses, or how much room is inside of it, is measured by its volume. The volume of a box can be calculated using this straightforward formula: volume V = L × W × H for a box with height H, width W, and length L.

Many different units can be used, however because of the way this formula is written, the volume would have length to the third power dimensions. For instance, if the container's measurements are given in metres, the capacity of the box will be given in metres squared, or m3.

To learn more about volume of a container, visit:

brainly.com/question/9092584

#SPJ4

7 0
2 years ago
When an electric current runs through a wire a magnetic field is included where?​
Luba_88 [7]
I think its inside the loop i had this lesson last week :)
8 0
3 years ago
A block of ice is floating in a cup of water. It is 0.5 cm above the water surface and its length
Lapatulllka [165]

Answer:

Let the volume of the cube be V and the fraction of cube outside water be f.

Thus, volume of ice inside water = volume of water displaced =(1−f)V

Under equilibrium,

Weight of ice = Weight of water displaced

⟹Vρ

ice

g=(1−f)Vρ

water

g

⟹(1−f)=

10

9

⟹f=

10

1

Thus, the percentage of volume outside water =10%

6 0
3 years ago
For what position of the object will a spherical concave mirror project on the screen an image smaller than the object? a. betwe
luda_lava [24]

Answer:

option (d)

Explanation:

A concave mirror always forms a real and inverted image of an object except when the object placed between pole and focus of the mirror.

When the object is placed beyond the centre of curvature, it forms a image which is smaller than the object but it is real and inverted in nature.

3 0
4 years ago
Mars’s moon Phobos orbits the planet at a distance of 9380 km from its center, and it takes 7 hours and 39 minutes to complete o
sukhopar [10]

Answer: 0.107

Explanation:

We can solve this problem with Kepler's Third Law of Planetary motion:

T^{2}=4 \pi^{2} \frac{r^{3}}{G M_{MARS}} (1)

Where:

T=7 h 39 min is the orbital period of Phobos around Mars

G=6.674(10)^{-11}\frac{m^{3}}{kgs^{2}} is the Gravitational Constant  

M_{MARS} is the mass of Mars

r=9380 km \frac{1000 m}{1 km}=9,380,000 m is the semimajor axis of the orbit Phobos describes around Mars (assuming it is a circular orbit, the semimajor axis is equal to the radius of the orbit)

Well, firstly we have to convert the orbital period to seconds:

T=7 h 39 min=(7 h \frac{3600 s}{1 h}) + (39 min \frac{60 s}{1 min})=25200 s + 2340 s=27540 s

Now, we have to find M_{MARS} from (1):

M_{MARS}=\frac{4 \pi^{2} r^{3}}{G T^{2}} (2)

M_{MARS}=\frac{4 \pi^{2} (9,380,000 m)^{3}}{(6.674(10)^{-11}\frac{m^{3}}{kgs^{2}}) (27540 s)^{2}} (3)

M_{MARS}=6.436(10)^{23} kg (4) This is the mass of Mars

On the other hand, it is known the mass of the Earth is:

M_{EARTH}=5.972(10)^{24} kg (5)

Then, if we want to know the ratio of Mars’s mass to the mass of the earth, we have to divide M_{MARS} by M_{EARTH}:

\frac{M_{MARS}}{M_{EARTH}}=\frac{6.436(10)^{23} kg}{5.972(10)^{24} kg}

Finally:

\frac{M_{MARS}}{M_{EARTH}}=0.107

7 0
4 years ago
Other questions:
  • Is it possible for an object moving with a constant speed to accelerate? explain?
    11·1 answer
  • A 22 kg sled is pushed for 5.2 m with a horizontal force of 20 N, starting from rest. ignore friction. find the final speed of t
    12·1 answer
  • How can astronomers use rocks from the Moon to estimate the age of the solar system?
    13·1 answer
  • What is the main difference between velocity and speed?
    15·1 answer
  • The block is sitting at rest on the floor. The normal force on
    15·1 answer
  • Can someone help me please ??
    15·1 answer
  • What is radiation? Explain in your own words.
    10·2 answers
  • Is the daughter or the science teacher correct? And why?
    14·1 answer
  • Adam and kevin are roommates. Adam can clean their apartment in 45 minutes. Kevin can clean it in 60 minutes. Rounded to the nea
    14·1 answer
  • A massless rope passes over a massless pulley suspended from the ceiling. A 4-kg block is attached to one end and a 5-kg block i
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!