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Romashka [77]
3 years ago
10

A client experiences difficulty in performing the prone iso-abs exercise. Which of the following should be suggested as an regre

ssion?
a. Quadruped arm and opposite leg raise
b. Cable rotation
c. Rolling active resistance row
d. Cable chop
Physics
1 answer:
butalik [34]3 years ago
8 0

Answer:

a. Quadruped arm and opposite leg raise

Explanation:

Quadruped arm and opposite leg lift

- Kneel on the floor, lean forward and place your hands down.

- Keep your knees in line with your hips and hands directly under your shoulders.

- Simultaneously raise one arm and extend the opposite leg, so that they are in line with the spine.

- Go back to the starting position.

This method is usually used as an alternative to iso-abs exercise or also known as a bridge, which allows you to exercise the abdominal and spinal area at the same time.

It is also used together with other exercises for the treatment of hyperlordosis.

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A person sitting in a parked car hears an approaching ambulance siren at a frequency f1. as it passes him and moves away, he hea
natali 33 [55]

Answer:E

Explanation:

This can be explained by Doppler effect which gives the relation between apparent Frequency and actual frequency when the source of sound is moving

f'=f\frac{v+v_o}{v-v_s}

where f'=apparent\ frequency

f=actual\ frequency

v=velocity\ of\ sound

v_o=velocity\ of\ observer

v_s=velocity\ of\ source

here v_o =0 as observer is standing

when Ambulance is approaching then velocity of sound and velocity of ambulance have relative velocity thus denominator is less than and apparent frequency is more while when ambulance is going away then velocity of sound waves and velocity of observer is in opposite direction thus denominator is less than 1 and apparent frequency is less.

Thus f_2

6 0
4 years ago
A force of 210 N is applied to an object and the object accelerates at 14m/s2. Determine the mass of the object in kg.
lisabon 2012 [21]

Answer:

15 kg

Explanation:

F = m*a

F/a = m

210/14 = 15 kg

7 0
3 years ago
In order to predict whether a star will eventually fuse oxygen into a heavier element, you mainly want to know what fact about t
Strike441 [17]

In order to predict whether a star will eventually fuse oxygen into a heavier element, you mainly want to know about the star's mass.

<u>Explanation:</u>

Stellar evolution is procedure by which star experiences a succession of radical change during its lifetime. Depending upon the mass of stars, this lifetimes range from just two or three million years for most big to the trillions of years for a least massive, which is significantly longer or more than the age of universe.

All stars are conceived from falling billows of gas and residue, frequently called nebulae or sub-atomic mists. Throughout a large number of years, the protostar settles down into a condition of balance, turning out to be what is also known as the main- sequence - star.

6 0
3 years ago
Consider two point charges located on the x axis: one charge, q1= -11.0 nC, is located at x1= -1.675 m; the second charge, q2= 3
Mekhanik [1.2K]

Answer:

Please refer to the figure.

q1 is a negative charge, and q2 and q3 are positive charges. So, the force exerted by q1 on q3 is attractive, and the force exerted by q2 on q3 is repulsive, which means F13 is directed towards left, and F23 is also directed towards left.

F_{13} = \frac{1}{4\pi \epsilon_0}\frac{q_1 q_3}{r_1^2} = \frac{1}{4\pi \epsilon_0}\frac{11\times 10^{-9}\times 47.5\times10^{-9}}{(-1.675 - (-1.18))^2} = 1.92\times 10^{-5}N

F_{23} = \frac{1}{4\pi\epsilon_0}\frac{q_2q_3}{r_2^2} = \frac{1}{4\pi\epsilon_0}\frac{31\times 10^{-9} \times 47.5\times 10^{-9}}{(-1.18 - 0)^2} = 9.5\times 10^{-6}

The net force on q3 is the sum of these two forces:

F_{net} = F_{13} + F_{23} = -1.92\times 10^{-5} + (-19.5\times10^{-6}) = 2.8\times 10^{-5} N

Since both forces are directed towards left, their sign should be negative.

5 0
3 years ago
All compasses have a _____ inside that lines up with the earth’s magnetic north.
amid [387]

Answer:

magnet

Explanation:

5 0
3 years ago
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