Please help!! Look at pic

Answer:

The greater the period the faster the wave moves (Figure 10.5).

Explanation:

The resultant physical quantity, velocity is 1.7 m/s. The correct option is A.

When two  vectors are represented by vectors, their resultant will be the closing side of the triangle.

A model airplane heads due east at 1.50 meters per second, while the wind blows due north at 0.70 meter per second.

The right angle triangle is formed from the two velocity vectors and its resultant will be its hypotenuse.

Then, from the Pythagoras theorem,

Vr ² = (0.70)² + (1.50)²

Vr = 1.65 m/s

Thus, the resultant velocity is approximately  1.7 m/s.

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Answer:

[tex]period = 4s[/tex]

Explanation:

[tex]period = \frac{total \: time}{number \: of \: cycles} [/tex]

[tex]period = \frac{12}{3} [/tex]

[tex]period = 4s[/tex]

Answer:

C. A light bulb shines

Explanation:

When electricity flows through a circuit and powers the light bulb, the light bulb would shine.

The answer isn't B because if the battery was only connected to the circuit without the circuit being turned on by the switch, electricity would not flow from the battery to the light bulb.

The magnitude of the vertical force that a concrete support exerts on the bridge at the far end is 201.25 N.

The force is an action of push or pull which makes a body to move or stop.

Given is the weight of tourist W = 805 N and L is the length of the bridge.

Let the reaction force at both the ends of the bridge is R1 and R2.

Taking the moments about point A,

R1 x 0 - W x L/4 +R2 x L =0

R2 = W/4

R2 = 805 /4

R2 = 201.25 N

Thus, the magnitude of the vertical force that a concrete support exerts on the bridge at the far end is 201.25 N.

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Answer:

A for loop is a loop that runs for a preset number of times. A while loop is a loop that is repeated as long as an expression is true. An expression is a statement that has value. A do while loop or repeat until loop repeats until an expression becomes false.

Answer: reference point

Explanation: A reference point could be a put or question utilized for comparison to decide in case something is in movement.

I hope its helps you . you can also write 1.44×10^3 it will be better

Answer:

D. Po cguro pero I will study hard to get the correct answer and I will share to you pero I try mo Lang po Yan kac halos kami dito Yan po Yung nilagay namin na answer baka kac Tama po e Kaya tau mag aral po tau ng mabuti Para MAtopad natin Yung mga pangarap natin at making tau sa mga pamilya at guro Yung Lang po good bless

The incidence is maybe 26=9

The magnitude of the acceleration and its direction however depends on the resultant force.

In a system of forces, the resultant force is the force that has the same effect in magnitude and direction as all the forces acting together.

In an inclined plane, the friction, weight and applied force all act together on the object. The magnitude of the acceleration and its direction however depends on the resultant force.

This question is incomplete as the diagrams are missing hence the numerical values can not be computed.

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Hi there!

Recall the equation for magnetic flux.

[tex]\Phi _B = \oint B \cdot dA[/tex]

We can also rewrite this as:

[tex]\Phi_B = B \cdot A = BAcos\phi[/tex]

B = Magnetic field strength (T)
A = Area of surface (m²)

φ = angle between the surface's area vector and magnetic field

Since the rectangular surface is horizontal, its perpendicular area vector points straight UP.

The magnetic field makes an angle of 32° with the surface but makes an angle complementary to this angle with the AREA VECTOR. (Think: the vertical)

Complementary of 32° ⇒ 90° - 32° = 58°

Now, we can rearrange the above equation to solve for the magnetic field.

[tex]\Phi_B = BA cos\phi \\\\B = \frac{\Phi_B}{Acos\phi}\\\\B = \frac{3.6 \times 10^{-4}}{(0.03 * 0.042)cos(58)} = \boxed{0.539 T}[/tex]

Answer:

The acceleration is

Explanation:

Acceleration = final velocity - initial velocity
                        ---------------------------------------
                                speed
Initial velocity = 10m/s
final velocity = 22m/s
speed = 2 secs
acceleration = 22 - 10
                       -----------
                           2
                    = 12/2
                     6 m/s^2

v² = u² + 2as

v² = 4² + 2 × 1.2 × 20

v² = 16 + 2 × 12/10 × 20

v² = 16 + 48

v² = 64

v = 8 ms - 1

ii)

V = u + at

8 = 4 + 1.2 × t

8 - 4 = 1.2t

4 = 12/10 t

4 × 10 /12 = t

3.33 = t

Average velocity = Displacement/Time

20/3.33

6.006 ms - 1

Answer:

LED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light bulbs.

Np/Ns = Vp/Vs

200/Ns=120/24000

Ns=40,000

A rifle recoils while firing a bullet. The speed of the rifle's recoil is small because the rifle has more mass than the bullet.

[tex]p_{1} =-p_2}[/tex]

[tex]m_{1} V_{1} =-M_{2} v_{2}[/tex]

Answer:

Explanation:

A rifle recoils while firing a bullet. The speed of the rifle's recoil is small  and typically fast because the rifle has more mass than the bullet.

Answer:

7 hrs

Explanation:

56 km / 8 km/hr = 7 hr

Answer:

schizophrenia is a chronic disease meaning it doesn't go away. It affects a person mentally, and on a daily basis is hard to see who or what is reality or an illusion. People with schizophrenia have a hard time getting a job, because it's hard to focus.

Most stigmas people have with schizophrenia is paranoid, or insane. They think something or someone is following them because they see something that makes them uncomfortable all the time.

Explanation:

Answer:

290.4 joules

Explanation:

As the formula to find kinetic energy is 1/2 mv^2.

So if we put the given data in it,the answer comes 290.4 joules

Answer:

Nothing

Explanation:

We get struck by small asteroids. imperciptable changes in our degree of tilt and rate of rate of rotation

Answer:

W = 3F

Explanation:

Work is defined as the inner product between force and displacement. The inner product picks out the force components which point in the same direction as the displacement. The vertical components do not matter in the horizontal displacement. I am assuming you're dealing with 1-dimensional motion? Then the work would be:

[tex]W=Fd[/tex]

The displacement is 3 meters. Therefore, the work is:

[tex]W=3F[/tex]

You haven't gave the force being applied to the object, so I cannot give an explicit answer. Just multiply the force by 3 to get the work.

Sonar is used to determine the speed of an object. The object is moving at 8.4146 m/s.

The frequency of any wave is defined as the number of cycles per second.

The frequency of the sound received is

f' = f x [(V+Vo /V-Vo)]

where f = 40kHz, f' = 42kHz, V =345 m/s, then the velocity of the observer will be

(V+Vo /V-Vo) = 42/40 =1.05

On rearranging the doppler shift formula, we have

Vo = 0.05 x 345 /2.05

Vo = 8.4146 m/s.

Thus, the object is moving at 8.4146 m/s.

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Answer:

.0882 s

Explanation:

Sound has to travel to the bottom (15 m) then back up (15m ) to hear the echo

(15 + 15 m) / 340 m/s = .0882 s

Answer:

low.

Explanation:

it makes the flow easier if its lower because, the resistance isn’t pushing as hard against the flow which means that the flow is easier.

The contents of your résumé should always be relevant.

A resume is a brief information about a person's academic life achievements and organizational experience stated in short in order to get a highly paid job.

A resume should include all the relevant information that help the employers easily shortlist candidates of their choice relating the job profile. It is understandable by resume that who you are and why you're a good fit for the job.

Thus, the contents of your résumé should always be relevant.

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Answer:

1st law--Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net forceacting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.

2nd— The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum(mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force.) For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a:

F = m * a

For an external applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways.

3rd law-- The third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. Notice that the forces are exerted on different objects. The third law can be used to explain the generation of lift by a wing and the production of thrust by a jet engine.