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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
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What is the wavelength of a bullet that is 0.450 g traveling at 2000. m/s?
ziro4ka [17]
Λ= 7.36E - 34 m

Use the Broglie wavelength equation. 

λ= { h/ mv} * SQRT {1- (v^2/ c^2)}
7 0
3 years ago
What is the effect of the following change on the volume of 1 mol of an ideal gas? The initial pressure is 722 torr, the final p
Ray Of Light [21]

Answer:

A. Volume is unchanged

Explanation:

P_{i} = initial pressure of the gas = 722 torr = 96258.7 pa

P_{f} = final pressure of the gas = 0.950 atm = 96258.75 pa

T_{i} = initial temperature = 32 °F = 272.15 K

T_{f} = final temperature = 273 K

V_{i} = initial volume

V_{f} = final volume

Using the Equation

\frac{P_{i} V_{i}}{T_{i}} = \frac{P_{f} V_{f}}{T_{f}}

Inserting the values

\frac{(96958.7) V_{i}}{272.15} = \frac{(96958.75) V_{f}}{273}

V_{f} = (1.00312) V_{i}

Hence the volume is unchanged.

4 0
3 years ago
A spring with a spring constant of 25.0N/m is stretched 4.50m. What is the force that the spring would apply?​
alina1380 [7]

Explanation:

from \: hookes \: law : \\ force = k \bold{.}e \\  = 25.0 \times 4.50 \\  = 112.5 \: N

8 0
3 years ago
What type of landform is depicted here? a. a mountain b. a depression c. a valley​
Harrizon [31]

Answer:

b.mountain the correct answer

Explanation:

what type of ladform ids depicted here? a.a b. mountain b. a depression c. avaley

6 0
3 years ago
What is the current in a 120 volt circuit if the resistance 5 ohms?
Lera25 [3.4K]

By Ohm's law:

  • V = IR

→ 120 = I(5)

→ I = (120/5)

→ I = 24 Ampere

<em>Hence, Option c) is correct </em>

4 0
3 years ago
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