What is the correct answer?

Answer:

isn't it the first one

Answer:

The object in figure C is a planet, so it is the largest object. Planets are larger than comets and asteroids.

Explanation:

Answer:

The horizontal component of the velocity is approximately 42.6 m/s

Explanation:

The given parameters are;

The speed of the arrow when it was shot = 52 m/s

The angular direction in which the arrow was shot, θ = 35° above the horizontal

The horizontal component of the velocity is found by the resolution if the velocity vector into its components as follows;

The horizontal component of the velocity = Velocity in the x-direction = vₓ

vₓ = v × cos(θ) = 52 × cos (35°) ≈ 42.6 m/s

vₓ = The horizontal component of the velocity ≈ 42.6 m/s

Answer:

Maximum Altitude: vi = 250 m/s At the maximum height q = 35° vy,f = vy,i − g∆t = 0 g = 9.81 m/s2 vy,i = vi (sin q) = g∆t ∆t =  vi (si g n q)  =  (250 9 m .8 / 1 s) m (s / i s n 2  35°) ∆t = 15 s

Vertical Velocity: Vyf = 439.09

Explanation:

The time it will take to reach its maximum altitude will be 14.63 seconds, and the final vertical velocity will be 143.4 m/s.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, speed is a scalar value, but velocity is a vector.

The velocity at time t = 0 is known as the initial velocity (u). It is the rate at which motion initially manifests itself.

On the other hand, the final velocity is a vector number that represents the speed and direction of a moving body after it has experienced its maximum acceleration.

According to the question, the given values are :

Angle, θ = 35°

V₀ = 250 m/s

[tex]V_o_y=V_osin\theta[/tex]

[tex]V_o_y[/tex] = (250)(sin 35°)

= 250 × 0.573

[tex]V_o_y[/tex] = 143.4 m/s.

Now, the time it will take to reach its maximum height will be :

[tex]t_m_a_x=V_o_y/g[/tex]

= 143.4 / 9.8

[tex]t_m_a_x[/tex]= 14.63 seconds.

Hence, the time it will take to reach its maximum altitude is 14.63 seconds.

To get more information about Speed :

https://brainly.com/question/7359669

#SPJ2

Answer:

Explanation:

C. Both A and B I guess

Answer:

its b

Then, all of a sudden, a strong earthquake strikes off the coast of Alaska, deep down on the sea floor.  After this, the sea floor moves up and down.  Next, walls and floors of the houses suddenly start to shake.

Explanation:

mark me brainleist please!

also i really hope this helps and have a really good day

-TA

From the information in the picture, it's not possible to select any of the choices on the list.

-- Knowing the horizontal and vertical forces on the plane, we can't tell what direction it will move.  We can only tell what direction it will accelerate.

The net horizontal force is (200N right) - (50N left).

. . . That's 150N to the right, so the plane accelerates to the right.

The net vertical force is (175N up) - (75N down).

. . . That's 100N upward, so the plane accelerates upward.

-- We can't tell the compass direction of the net force, because the picture doesn't tell us the compass direction of the horizontal forces.

Answer:

skip zone

Explanation:

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:

It is possible by increasing the speed of the tennis ball by a factor of (Mass of the tennis ball)/(Mass of the basketball)

Explanation:

The momentum of a body = The bod's mass × The body's velocity

Therefore, the momentum of a given mass of an object, such as a tennis ball can be increased by increasing the velocity or speed of the object. Whereby the speed of the ball, v₁, is increased such that the momentum of the basketball and the tennis ball will be the same, is given by the following equation

Mass of the basketball × v₂ = Mass of the tennis ball × v₁

Therefore, v₁/v₂ = (Mass of the tennis ball)/(Mass of the basketball)

Answer:

chloroplasts

Explanation:

Plants have chloroplasts which are plastids that contains chlorophyll and  photosynthesis takes place.

Answer:

v = gt

Explanation:

From the question given, we obtained the following information:

Initial velocity (u) = 0 m/s

Acceleration due to gravity (g) = g

Time (t) = t

Final velocity (v) =.?

Thus, we can obtain the velocity as illustrated below:

v = u + gt

v = 0 + gt

v = gt

Thus, the equation for the velocity is

v = gt

Answer:=Phone 2G

Explanation:

Answer:

model=A1203

Explanation:

it was the first iPhone invented by apple sync

Answer:

Imagine a tug-of-war between you and one

friend. If you are stronger, you apply more

force to the rope. You pull your friend across

the line, and you are the winner! If your friend

is stronger, he might pull you across the line.

Sometimes the forces are equal. Neither you

nor your friend moves across the line. The two

forces are balanced.

3

We say that the net force on an object is the combination of all the forces acting on it. To find the net force of

forces that are acting in the same direction, add them together. For example, if you pull on a box with a force of 25

newtons (N) while your friend pushes the box (in the same direction you are pulling) with a force of 30 N, the net

force applied to the box in that direction is 55 newtons.

4

To find the net force of forces that are acting in opposite directions, subtract the smaller force from the larger

one. If you are pulling on a tug-of-war rope with a force of 40 N, and your friend is pulling with a force of 35 N in

the opposite direction, the net force on the rope is 5 newtons in your direction. You win!

Explanation:

My team won the thug of war contest because we exerted a greater net force than the opponent team.

The letter requested is an informal letter. The letter opens with a heading which contains the writers' address and date.

                                                                                   Universal Model School,

                                                                                    90 Aba Owerri Road,

                                                                                    Aba.

                                                                                   October 22, 2021.

Next is the salutation, for example;

Dear Chris,

Next is the body of the letter, you can begin the first paragraph by asking after his welfare and that of his family and studies.

In the second paragraph, you can let him know that the reason for motion is the action of unbalanced forces. In the thug of war game, each side exerts a force. The team that wins is the team that exerts a greater net force causing the cord to move towards their own side.

The conclusion should have such words as;

                                                                                   Yours Truly,

                                                                                  Your name

Learn more: https://brainly.com/question/22554908

Answer:

250J

Explanation:

Given parameters:

Force on block = 100N

Degree of pull  = 60°

Mass of block  = 10kg

Distance  = 5m

Unknown:

Work done on the object = ?

Solution:

The workdone on a body is the force applied to move a body in a specific direction;

  Workdone  = force x distance cos Ф

Insert the parameters and solve;

     Workdone  = 100 x 5 cos 60°

    Workdone  = 250J

Answer:

A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral

Answer:

Explanation:

Atoms are electrically neutral because they contain equal quantities of positively charged protons and negatively charged electrons. Electrons and protons have equal but opposite charges, so the result is no net charge. Ions are atoms that have gained or lost electrons. As a result, ions have a net charge.

Answer:

9,200 m

Explanation:

1 kilometer = 1000 meters so if there is 9 kilometers then it is 9000 meters, then .2 kilometer is equal to 200 meters. Add the numbers together to get 9,200 meters

Answer:2 hours

Explanation:

Answer:

1. 6 m/s.

2. 320 miles.

Explanation:

1. Determination of the average speed.

Total distance travelled (D) = 24 m

Total time (t) = 4 s

Average speed =.?

Average speed is simply defined:

Average speed = Total distance /total time

Average speed = 24/4

Average speed = 6 m/s

2. Determination of the distance travelled by the train.

Speed = 40 mph

Time = 8 h

Distance =?

Speed is simply defined as:

Speed = Distance /time

40 = Distance / 8

Cross multiply

Distance = 40 × 8

Distance = 320 miles

Therefore, the train travels a distance of 320 miles.

Answer:

Most likely it will reach 29.4 up in the air before coming back down.

Explanation:

The force of the ball will be the same on how high it will go.

Answer:

2160 km/h

Explanation:

720 times 3 gives you the answer

Answer:

He will have to use two batteries instead of just one.

Explanation:

The way Brady could increase the strength of his electromagnet and pick up more thumbtacks is for him to increase the current. He can achieve this either by adding a second battery or by adding more coils of wire.

This is because using 2 batteries will make the amount of current in the coils to increase and this will in turn produce a higher electromagnetic field in the nail.

Answer:

the scattering of short wavelengths as light

passes through the atmosphere

Answer:

Pressure

Explanation:

the answer is pressure

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:

t = 12.37 [min]

Explanation:

In order to solve this problem we must first convert units of gallons to cubic feet.

[tex]V = 5.25\frac{gal}{min}*231\frac{ft^{3} }{1gal} \\V = 1212.75[\frac{ft^{3} }{min} ][/tex]

where:

V = volumetric flow = 1212.75 [ft^3/min]

And the volume of the pool can be calculated as follows :

v = 33.8*40*11.1 = 15007.2 [ft^3]

The volumetric flow is equal to:

V = v/t

where t is the time

t = v/V

t = 15007.2/1212.75

t = 12.37 [min]

Answer:

Explanation:

1) Since the bags hold three pineapples

2) we can also hold two pineapples in one bag.

Hope this helps! <3

Answer:

B.

Explanation:

The one that demonstrate the result of waves traveling at different speeds when moving from one medium to another is the bending of light as it moves from air to water. The correct option is B.

Even though waves travel at different speeds through different mediums, light bends or is refracted as it travels from one medium to another.

The degree to which it bends is referred to as the index of refraction. Light bends more as the index of refraction increases.

The change in direction of waves that occurs when they travel from one medium to another is referred to as refraction.

Refraction is always accompanied by a change in wavelength and speed. The bending of waves around obstacles and openings is known as diffraction.

The bending of light as it moves from air to water is an example of the result of waves traveling at different speeds when moving from one medium to another.

Thus, the correct option is B.

For more details regarding bending of light, visit:

https://brainly.com/question/14841455

#SPJ5

Answer:

About 3 trips

Explanation: if we do 2.5m*1.6m*0.75 it equals to 11000 then we divide that to 11m3 and it gives you 3.6 so it will be about 3 times

Thx