from the list below, which athlete would need to focus on cardiovascular endurance?

A. Body Builder

B. Baseball Player

C. Marathon Runner

D. Bowler ​

Answer:

Explanation:

a )

initial velocity u = 45 m/s

acceleration a = - 5 m/s²

final velocity v = 0

v = u - at

0 = 45 - 5 t

t = 9 s

b )

s = ut - 1/2 at²

= 45 x 9 - .5 x5x 9²

405 - 202.5

202.5 m

2 )

a )

s = ut + 1/2 a t²

u = 0

s = 1/2 at²

= .5 x 9.54 x 6.5²

= 201.5 m

b )

v = u + at

= 0 + 9.54 x 6.5

= 62.01 m / s

3

a )

acceleration = (v - u) / t

= (34 - 42) / 2.4

= - 3.33 m /s²

b )

v² = u² - 2 a s

34² = 42² - 2 x 3.33² s

s = 27.41 m

c )

Average velocity

Total displacement / time

= 27.41 / 2.4

= 11.42 m /s

4 )

a )

v = u + at

v = 0 + 3 x 4

= 12 m /s

b )

s = ut + 1/2 a t²

= o + .5 x 3 x 4²

= 24 m

Answer:

Perfect distance away makes it suitable for life

Explanation:

The Sun's gravitational pull helps to control tides on earth and also to keep the earth in a curvilinear motion.

Gravity, or gravitation, is a natural phenomenon in which all entities with mass or energy are drawn to one another, including planets, stars, galaxies, and even light.

The gravitational pull of the sun continuously pulls the earth towards it, although because of the fast movement of the earth we never reach towards the sun instead we revolve around it.

Despite the fact that the sun's gravitational pull is neutralised by the movement of the earth in a curve, there is still some gravitational pull that exists which helps to control the tides on earth.

Thus, the Sun's gravitational pull helps to control tides on earth and also to keep the earth in a curvilinear motion.

Learn more about Gravity:

https://brainly.com/question/4014727

A road laid out on an air-hockey table, with a thin coat of ice on the table, and a little bit of oil or lard on top of the ice.

NOTE:  The car couldn't actually GO anywhere on this road, because a car needs friction in order to move where you want it to.  A car on THIS road would just go wherever the wind blew it.

Answer:=Phone 2G

Explanation:

Answer:

model=A1203

Explanation:

it was the first iPhone invented by apple sync

In a reaction, reactants are the substances on which the reaction takes place. The reactants undergo changes to form the products.

Consider the following reaction:

C + O₂ ---> CO₂

Learn more about chemical reactions here:

https://brainly.com/question/16416932

#SPJ10

Answer:

Explanation:

Idk

Answer:

Q = I * t = 2 Coulomb / sec * 1000 sec = 2000 Coulombs transferred

E (energy) = V * Q = I * t * 240 V

E = 240 J / Coul * 2000 Coul = 480,000 Joules

Next question:

Total voltage drop in circuit = 6.5 V + 4.5 V = 11 V

So the power supply must supply 11 V

Answer:

The Lunar month is the time period for the moon to complete ONE revolution around Earth. SIDEREAL MONTH: 27.3 days SYNODIC MONTH: 29.5 days

Answer:

a strong nuclear force is a powerful force of attraction that acts only on the neutrons and protons in nucleus

so the answer is: STRONG NUCLEAR

C

Explanation:

It means how hard the activity is performed.To improve cardio respiratory endurance, the frequency of the workout sessions should be: 5 to 7 sessions per week.

Answer: a. -720m/s^2

b. Yes, airbags will deploy

Explanation:

The formula for acceleration is:

= (Final velocity - Initial velocity)/Time

Final velocity = 0m/s

Initial velocity = 36m/s

Time taken = 0.05s

= (Final velocity - Initial velocity)/Time

= (0 - 36)/0.05

= -36/0.05

= -720m/s^2.

Since it's negative, it shows that there was a deceleration.

2. Yes the airbag will deploy since the acceleration gotten is more than -600 m/s^2.

Answer:

Part 1

The vector can be expressed as follows;

r = 12, θ = 72°, ·v = (12, ∠72°), ·v ≈ 3.71·[tex]\mathbf{\hat i}[/tex] + 11.41·[tex]\mathbf{\hat j}[/tex] or

[tex]\mathbf{\cdot v}=\begin{bmatrix}3.71\\ 11.41\end{bmatrix} = \begin{pmatrix}3.71\\ 11.41 \end{pmatrix}[/tex]

Part 2

The angle of the vector is 56.31°

Explanation:

Part 1

The given parameters are;

The direction of the vector = 72°

The vector magnitude = 12

Therefore, the vector can be described in the following forms;

Polar form

1) Direct notation;

r = 12, θ = 72°

2) Ordered set

·v = (12, ∠72°)

Rectangular vector notation;

1) Unit vector notation

·v = vₓ[tex]\mathbf{\hat i}[/tex] + [tex]v_y[/tex][tex]\mathbf{\hat j}[/tex]

Where;

vₓ = 12 × cos(72) ≈ 3.71

[tex]v_y[/tex] = 12 × sin(72) ≈ 11.41

Therefore;

·v ≈ 3.71·[tex]\mathbf{\hat i}[/tex] + 11.41·[tex]\mathbf{\hat j}[/tex]

2) Matrix notation

[tex]\mathbf{\cdot v}=\begin{bmatrix}3.71\\ 11.41\end{bmatrix} = \begin{pmatrix}3.71\\ 11.41 \end{pmatrix}[/tex]

Part 2

The given vector is V = 2·x + 3·y

Therefore, the angle of the vector, θ = tan⁻¹(y/x) =  tan⁻¹(3/2) ≈ 56.31°

The angle of the vector = 56.31°.

Answer:

A. an apple falling from a tree

Explanation:

Answer:

At the december solstice,the northern hemisphere is leaning most away from the sun for the year.At the december solatric,earth is positioned in its orbit so that the sun below the north pole horizon. After the winter solstice,the days get longer,and the night shorter.

Answer:

3 i think

Explanation:

hope this helps also Hiiii

Answer:

The correct option is;

C. 40 N

Explanation:

Given that the rock is on the ground, we have;

The weight of the rock, [tex]F_W[/tex] = 40 N ↓

From Newton's third law of motion, we have that action and reaction are equal and opposite,

Therefore, given that the weight of the rock exerts a force of 40 N on the ground, and the rock is stable and stationery on the ground, then the ground is reacting to the weight of the rock with an equal force of 40 N, acting in opposite direction to the weight of the block to balance the weight of the rock and create equilibrium such that the net force acting on the rock is zero

∑F = [tex]F_W + F_R[/tex] = 0

Where;

[tex]F_R[/tex] = The reaction of the ground

We have;

[tex]F_W[/tex] + [tex]F_R[/tex]= 40 + [tex]F_R[/tex]  = 0

[tex]F_R[/tex] = 0 - 40 = -40

[tex]F_R[/tex] = -40 N ↓

∴ [tex]F_R[/tex] = 40 N ↑.

Answer:

C, 40N

Explanation:

Answer:

abhi ham logo KO madam ne Padaya nahi hai

Answer:

1.3s

Explanation:

Answer:

Δx = -80m

Explanation:

The object's displacement is -80m because it landed 80m below where it started.

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

where

f is the force

m is the mass

From the question we have

[tex]a = \frac{750}{349} \\ = 2.14899713...[/tex]

We have the final answer as

Hope this helps you

It's gonna take a huge amount of time and effort, and we're gonna spend a huge amount of money, to build a vacuum chamber big enough to do this experiment.  

So when we're finally ready to try it, the cannonball and golf ball will make a  kind of cute experiment, but let's make it really interesting.  Let's ALSO try it with a feather, an apple, a watermelon, a tennis ball, a basketball, a coffeepot, a chair, an old computer, a set of dishes, a trombone, a bicycle, a math book, a TV set, a gallon of milk, a skateboard, a shotgun, a concrete block, a car, a waterbed, a schoolbus, a battleship, your dog, and my wife !

Drop every single one of them from a height of 10 meters.

Every single one of them accelerates at 9.8 m/s² as it falls, takes 1.429 seconds to reach the floor, and hits the floor at a speed of 14 m/s.  The feather, the schoolbus, and my wife stay together all the way down.

The only way this doesn't happen is if ...

-- you do this experiment in some other place that's not Earth, or

-- you throw one of the objects and you don't just drop it, or

-- the vacuum chamber has a leak and some air gets into it.

Because that's how gravity works.

Answer:

The answer is:

14 x 8= 1.120

Answer:

288 cats

Explanation:

K = 50

G = 50 - 14 = 36

B = 36 x 8 = 288

Billy has 288 cats.

Please let me know if I'm incorrect!

Answer: a

Explanation: Hope it helps

Answer:

A

Explanation:

I think its a because A would be heavier making it go down faster than B. its like when you drop a father compared to a ball, the feather is lighter so it will go down slower than the ball because it has more mass

Explanation:

look up the coordinates or if they provide you with a map use that

Answer:

find each point in and draw a straight line until they touch and whatever is there is the country

Answer: sound waves are transmitted through the wall and visible light waves are reflected by the wall.

Answer:the moon, earth, phobos,and jupiter

Explanation:i hope im right

Answer: p = mv

Explanation:  momentum(p) is equal to mass(m) and velocity(v).