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
Scrat [10]
3 years ago
11

How often should muscle strengthening activities be performed?

Physics
2 answers:
nevsk [136]3 years ago
8 0

Answer:

B-Once a week

Explanation:

You answer is B-Once a week

LekaFEV [45]3 years ago
3 0

Answer:

once a week

Explanation:

once a week so answer B

You might be interested in
Which three characteristics of an object are represented by a motion map
nadya68 [22]

There are three things that can be represented on a motion map

These three things are:

1)Motion

2)Acceleration

3)Velocity

8 0
3 years ago
Fission is the process of creating energy by
Colt1911 [192]
<h2>Answer: The separation of the components of the nucleous of the atom  </h2><h2> </h2>

The n<u>uclear fission</u> consists of dividing a heavy nucleus into two or more lighter or smaller nuclei, by means of the <u>bombardment with neutrons to make it unstable. </u>

Then, with this division a great release of energy occurs and the emission of two or three neutrons, other particles and gamma rays.

It should be noted that in the process, the emitted neutrons can interact with new fissionable nuclei that will emit new neutrons and so on. Effect better known as chain reaction.

3 0
3 years ago
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 88.0 N toolbox,
Ostrovityanka [42]

Answer:

V= 6.974 m/s

Explanation:

Component( box) weight acting parallel and down roof 88(sin39.0°)=55.4 N

Force of kinetic friction acting parallel and up roof = 18.0 N

Fnet force acting on tool box acting parallel and down roof

Fnet= 55.4 - 18.0

Fnet=37.4 N

acceleration of tool box down roof

a = 37.4(9.81)/88.0

a= 4.169 m/s²

d = 4.90 m

t = √2d/a

t= √2(4.90)/4.169

t= 1.662 s

V = at

V= 4.169(1.662)

V= 6.974 m/s

5 0
3 years ago
Which nucleus completes the following equation?
natka813 [3]
the answer is C




IGNORW irritating but not even on the golden bath bath and
3 0
3 years ago
True or False: The energy increase of an object acted on only by a gravitational force is equal to the product of the object's w
tamaranim1 [39]

Answer:

False.

Explanation:

The statement shown in the question above is false and this can be confirmed by Newton's law on universal gravitation. According to Newton, the gravitational force exerted on any body is proportional to its weight, but the distance that the object travels when falling is disproportionate. In addition, if the force resulting from the weight of the object and its displacement has an angle of 0º, the weight force of that object will provide an increase in kinetic energy.

4 0
3 years ago
Other questions:
  • What is the magnitude of the relativistic momentum of a proton with a relativistic total energy of 2.7 3 10210 j?
    15·1 answer
  • A(n) ________ is a low layer of dark gray clouds that produces precipitation.
    8·2 answers
  • What is the changing of the position of an object relative to a point of reference
    10·1 answer
  • Please help me!!!
    8·2 answers
  • What is the force that can cause two pieces of iron to attract each other?
    10·2 answers
  • The diagram shows a positive charge moving in a magnetic field.
    16·2 answers
  • which one of the following will never happen when we use machine a force multiplication B innogy multiplication C is speed multi
    10·1 answer
  • What does it depend on
    11·1 answer
  • The specific heat capacity of copper is 385 J/kg/°C. Calculate the energy needed to increase the temperature of a 4 kg block of
    7·1 answer
  • An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement fr
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!