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
Oxana [17]
3 years ago
7

One problem with weight training as a way to improve overall health is that the results of a weight-training program are not mea

surable. Please select the best answer from the choices provided. T F
Physics
2 answers:
Lelu [443]3 years ago
6 0

Answer:

FALSE !!!

Explanation:

Edge 2020 ;)

Ede4ka [16]3 years ago
5 0

One problem with weight training as a way to improve overall health is that the results of a weight-training program are not measurable.

B.False

You might be interested in
Substances X and Y are both nonpolar. If the volatility of X is higher than that of Y, what is the best explanation?
lesya692 [45]
I believe the correct answer from the choices listed above is the last option.  If the volatility of X is higher than that of Y, then  <span>Y’s molecules experience stronger London dispersion forces than X’s molecules. All molecules has london dispersion forces. Also,  the stronger the bond, the harder it is to volatilize. Hope this answers the question.</span>
4 0
3 years ago
Read 2 more answers
What is normal for a spring that obeys hook's law ?
Bezzdna [24]
A spring that obeys Hooke's law has a spring force constant of 272 N/m. This spring is then stretched by 28.6 cm
7 0
3 years ago
Read 2 more answers
Can someone pls help ASAP:(
diamong [38]
I’m not sure but I think it’s
△ m=5 and △= -3 and so

Answer: 5/△-3 m/s

So sorry if it’s wrong
6 0
3 years ago
What are the steps to extract metal from the earths crust
Pani-rosa [81]
<span>Methods of extraction include: extract by electrolysis, extract by reaction with carbon or carbon monoxide, and extracted by various chemical reactions.</span>
4 0
3 years ago
A rock of mass 200 g is attached to a 0.75 m long string and swung in a vertical plane.
Ainat [17]

Hello!

a) Assuming this is asking for the minimum speed for the rock to make the full circle, we must find the minimum speed necessary for the rock to continue moving in a circular path when it's at the top of the circle.

At the top of the circle, we have:

- Force of gravity (downward)

*Although the rock is still connected to the string, if the rock is swinging at the minimum speed required, there will be no tension in the string.

Therefore, only the force of gravity produces the net centripetal force:

\Sigma F = F_g\\\\F_c = F_g\\\\\frac{mv^2}{r} = mg

We can simplify and rearrange the equation to solve for 'v'.

\frac{v^2}{r} = g\\\\v^2 = gr\\\\v = \sqrt{gr}

Plugging in values:

v = \sqrt{9.8 * 0.75} = \boxed{2.711 m/s^}

b)
Let's do a summation of forces at the bottom of the swing. We have:
- Force due to gravity (downward, -)

- Tension force (upward, +)

The sum of these forces produces a centripetal force, upward (+).

\Sigma F = T - F_g\\\\F_c = T - F_g\\\\\frac{mv^2}{r} = T - mg

Rearranging for 'T":
T =   \frac{mv^2}{r} +  mg\\\\

Plugging in the appropriate values:
T =  \frac{(0.2)(2.711^2)}{(0.75)} + 0.2(9.8) = \boxed{3.92 N}

5 0
1 year ago
Read 2 more answers
Other questions:
  • When on object’s spectral lines are shifted from their rest wavelengths to longer wavelengths, we say that the object’s spectrum
    7·1 answer
  • What is the force on an object that goes from 35 m/s to 85 m/s in 20 seconds and has a mass of 148 kg
    7·1 answer
  • Earthquakes along the subduction zones near Sumatra and Chile are some of the strongest in
    15·1 answer
  • The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas
    14·1 answer
  • Two long parallel wires are separated by 11 cm. One of the wires carries a current of 54 A and the other carries a current of 45
    7·1 answer
  • Can you have constant speed with zero net force?
    11·1 answer
  • CER WRITING PROMPT For which processes or functions do plant cells need additional organelles when compared to animal cells?​
    13·1 answer
  • A TV draws 0.867 A of current when connected to a 122 V outlet. It’s resistance is 140.71.
    14·1 answer
  • Help ?
    14·1 answer
  • Define pressure and enlist its various units
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!