PLEASE HELP COME UP WITH 5 MULTIPLE CHOICE QUESTIONS FROM HEALTH RELATED FITNESS AND SKILL RELATED QUESTIONS

Answer:

0.31 m

Explanation:

The following data were obtained from the question:

Horizontal distance (s) = 0.5 m

Horizontal velocity (u) = 2 m/s

Time (t) = 0.25 s

Height (h) of the pier =.?

The height of the pier can be obtained as illustrated below:

Time (t) = 0.25 s

Acceleration due to gravity (g) = 9.8 m/s²

Height (h) of the pier =.?

h = ½gt²

h = ½ × 9.8 × 0.25²

h = 4.9 × 0.0625

h = 0.31 m

The, the height of the pier is 0.31 m

Answer:

b

Explanation:

Answer:

B. Vastus Lateralis

Explanation:

The vastus lateralis muscle is located on the side of the thigh. This muscle is the largest of the quadriceps group.

Answer:

If both the radius and frequency are doubled, then the tension is increased 8 times.

Explanation:

The radial acceleration ([tex]a_{r}[/tex]), measured in meters per square second, experimented by the moving end of the string is determined by the following kinematic formula:

[tex]a_{r} = 4\pi^{2}\cdot f^{2}\cdot R[/tex] (1)

Where:

[tex]f[/tex] - Frequency, measured in hertz.

[tex]R[/tex] - Radius of rotation, measured in meters.

From Second Newton's Law, the centripetal acceleration is due to the existence of tension ([tex]T[/tex]), measured in newtons, through the string, then we derive the following model:

[tex]\Sigma F = T = m\cdot a_{r}[/tex] (2)

Where [tex]m[/tex] is the mass of the object, measured in kilograms.

By applying (1) in (2), we have the following formula:

[tex]T = 4\pi^{2}\cdot m\cdot f^{2}\cdot R[/tex] (3)

From where we conclude that tension is directly proportional to the radius and the square of frequency. Then, if radius and frequency are doubled, then the ratio between tensions is:

[tex]\frac{T_{2}}{T_{1}} = \left(\frac{f_{2}}{f_{1}} \right)^{2}\cdot \left(\frac{R_{2}}{R_{1}} \right)[/tex] (4)

[tex]\frac{T_{2}}{T_{1}} = 4\cdot 2[/tex]

[tex]\frac{T_{2}}{T_{1}} = 8[/tex]

If both the radius and frequency are doubled, then the tension is increased 8 times.

If both the radius and frequency are doubled, then the tension will be increased 8 times.

From kinematic formula:

[tex]\bold {a_r = 4\pi r^2 \times f^2 \times R^2}[/tex] .............................. (1)

Where:  

f - Frequency,    

R - Radius of rotation,  

From Second Newton's Law,

[tex]\bold {\sum F = T = m\times a_r }[/tex] ......................... (2)

Where

m is the mass of the object,

From equation 1 and 2,

[tex]\bold {T = m\times 4\pi r^2 \times f^2 \times R^2}\\[/tex] .................... (3)

From equation, tension is directly proportional to the radius and the square of frequency.

Then, if radius and frequency are doubled, then the ratio between tensions is:

[tex]\bold {\dfrac {T_2}{T_1} = (\dfrac {F_2}{F_1})^2 \times \dfrac {R_2}{R_1} = 4 \times 2 = 8 }[/tex]  

Therefore, If both the radius and frequency are doubled, then the tension will be increased 8 times.

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Answer:

0.67m/s²

Explanation:

Given parameters:

Mass of toy  = 1.2kg

Force applied = 0.8N

Unknown:

Acceleration   = ?

Solution:

According to newton's second law of motion;

      Force  = mass x acceleration

Now,

      Acceleration = [tex]\frac{Force}{mass}[/tex]

     Acceleration  = [tex]\frac{0.8}{1.2}[/tex]   = 0.67m/s²

Answer:

force = 0.8 N

mass = 1.2 kg

force

[tex] \boxed{force = m.a}[/tex]

According to Newton's second law of motion

[tex] \boxed{ \bold \pink {\underline{f =m.a}}} [/tex]

where

f= force

m= mass

a= acceleration

substitute the value in the above formula

0.8 = 1.2 × accleration

accleration= 0.8/1.2

acceleration= 0.66 m/sec²

Answer:

When a ray of light passes through a glass slab of a certain thickness, the ray gets displaced or shifted from the original path. This is called lateral shift/displacement.

Explanation:

.

Answer:

c Like/same signs

Explanation:

A repelling force occurs between two or more charged objects with the charges are of like or same sign.

Therefore, repulsion occurs when like charges are brought close to each other.

Answer:

Mass

Explanation:

Answer:

gravity interactions

Answer:

The Sclera, Cornea, Iris/Pupil, Lens, Retina, Ciliary Muscle, and Optic Nerve

Diagram:

Answer:

Sclera. The sclera is the white of the eye. ...

The Cornea. The cornea is the clear bulging surface in front of the eye. ...

Anterior & Posterior Chambers. The anterior chamber is between the cornea and the iris. ...

Iris/Pupil. ...

Lens. ...

Vitreous Humor. ...

Retina.

Explanation:

Sclera. The sclera is the white of the eye. ...

The Cornea. The cornea is the clear bulging surface in front of the eye. ...

Anterior & Posterior Chambers. The anterior chamber is between the cornea and the iris. ...

Iris/Pupil. ...

Lens. ...

Vitreous Humor. ...

Retina.

Answer:

With distance from the ridge crest, the sediments and crust get thicker. This also supports the idea that the youngest rocks are on the ridge axis and that the rocks get older with distance away from the ridge (Figure below). Something causes the seafloor to be created at the ridge crest.

Answer: With distance from the ridge crest, the sediments and crust get thicker. This also supports the idea that the youngest rocks are on the ridge axis and that the rocks get older with distance away from the ridge (Figure below). Something causes the seafloor to be created at the ridge crest

Explanation:

New rock is formed near the mid-oceanic ridge as oceanic plates diverge or separate from each other. Hot rocks rising from the asthenosphere melt from decompression as they rise, filling the fault and forming new basaltic oceanic crust. As new crust is added, older crust is pushed away. Therefore, the further away from the mid-oceanic ridge, the older the rocks.

16 km = 1/2 (20 m/s²) t ²

t ² = (32 km) / (20 m/s²)

t ² = (32,000 m) / (20 m/s²)

t = √(1600 s²)

t = 40 s

Answer:

the answer is for the question is B

Answer:

a = 6.87 [m/s²]

Explanation:

To solve this problem we must use the following equation of kinematics.

[tex]v_{f} =v_{o} +a*t[/tex]

where:

Vf = final velocity = 37 [m/s]

Vo = initial velocity = 15 [m/s]

a = acceleration [m/s²]

t = time = 3.2 [s]

Note: The positive sign in the above equation means that the velocity is increasing, due to the acceleration.

37 = 15 + a*3.2

3.2*a = 37 - 15

a = 6.87 [m/s²]

Answer:

The correct answer is - 47 years.

Explanation:

The doubling time of the population growth depends on the rate of population growth. The formula for the calculation of the doubling time is :

time (t) = log(N/N0)/r (time)

here,

N0 (initial population) = The population at time t = 0.

N (future population) = The population at time t.

r (rate) = The rate of population change as a function of t

by the formula

t = log (2/1)/0.015

t =  46.666 years or 47 years approx.

The population of each country will become double in 47 years. hence option (A) is correct.

Given data:

The population of Dominican republic is, n = 10.7 million.

The growth rate of Dominican republic is, p = 1.5 %.

The population of Paraguay is, n' = 6.0 million.

The growth rate of Paraguay is, p' = 1.5 %.

The doubling time of the population growth depends on the rate of population growth. The formula for the calculation of the doubling time is given as,

[tex]t = \dfrac{ln\dfrac{n}{n_{0}}}{p}[/tex]

Here,

[tex]n[/tex] is the final population and  [tex]n_{0}[/tex] is the initial population and for doubling the value in future, [tex]n = 2 \times n_{0}[/tex].

Solving as,

[tex]t = \dfrac{ln\dfrac{2\times n_{0}}{n_{0}}}{1.5/100}\\\\t \approx 47 \;\rm years[/tex]

Thus, we can conclude the population of each country will become double in 47 years.

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Both magnitude and direction. Centripetal acceleration always act towards the center of the circle and have constant value.

"When a body moves in a circular path the acceleration acting towards the center of the circle is called centripetal acceleration." Hence the magnitude and direction will not change.

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#SPJ2

It would be 8 units becuase half of 16 is 8

Answer:

v = 11 m/s

Explanation:

Given tha,

Initial speed, u = 5 m/s

Acceleration, a = 1.2 m/s²

Time, t = 5 s

We need to find the final speed of the boat during this time. Let it is v. Using first equation of motion as follows :

v = u +at

Putting all the values, we get :

v = 5 + 1.2(5)

v = 11 m/s

So, the final speed of the boat is 11 m/s. Hence, the correct option is (c).

Answer:

The people on the bus fall forward because Newton's Law of Inertia states that and object in motion with stay in motion or an object at rest will stay at rest unless acted in by another force. The force of the bus stopping suddenly caused the passengers to fall forward because they were at rest position.

Answer:

10kg

Explanation:

mass=momentum÷velocity

Answer:

ITS B need more characters so yessir

Answer:

C

Explanation:

Answer:

4.03 m/s/s

Explanation:

d=1/2 a t^2

210 = 1/2 a (10.21)^2

210 = 52.1 a

a = 4.03 m/s/s

Answer:

6.8×10^6 m

Explanation:

f = velocity of light/ wavelength

440= 3×10^8 / wavelength

so

wavelength = 3×10^7/ 44

= 6.8×10^6 m

Answer:

88.2J

Explanation:

Given parameters:

Mass of book = 3kg

Height of shelf = 3m

Unknown:

Potential energy  = ?

Solution:

The potential energy of a body is the energy due to the position of that body.

It can be mathematically calculated as;

       P.E  = mgh

m is the mass of the body

g is the acceleration due to gravity  = 9.8m/s²

h is the height

 Now insert the parameters and solve;

        P.E  = 3 x 9.8 x 3  = 88.2J

Answer:

Because of the chemical makeup of my DNA

Answer:

I'm not gay, but if you play xbox you are,

Explanation:

hehehhehehehehehehhehehehehehehehehehehheheehehhehehehehehheeeeeeeee

Answer:

2400 meters

Explanation:

80*30=2400

Answer:

speed=80m/s

time=30s

distance=?

Now,

speed=d/t

80=d/30

d=80×30

d=2400m

Answer:

Hype

Explanation:

Yyrru