Explanation:
Acceleration is a vector quantity which is defined as the rate at which an object changes its velocity
The contents of your résumé should always be:
o relevant
the same
personal
current
The contents of your résumé should always be relevant.
What is resume?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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How could you reduce the cost of lighting? Explain your answer
Answer:
Don't over-light roomsInstall dimmers on your lightsTurn lights off
Which is the load
Answer:
A is the load in the diagram
Answer:
i think the answer is A
A horizontal rectangular surface has dimensions 3.00 cm by 4.20 cm and is in a uniform magnetic field that is directed at an angle of 32.0 ∘ above the horizontal.
What must the magnitude of the magnetic field be to produce a flux of 3.60 × 10 −4 Wb through the surface?
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]
If in the figure below, the friction between the block and the incline is negligible, (a) how much must the object on the right weigh if the 200-N block is to remain at rest? Ans: 115 N (b) if the system remains at rest when F= 220 N. What are the magnitude and direction of the friction force on the 200-N block? Ans: 105 N down the incline 200 N Fw 35.0⁰
The magnitude of the acceleration and its direction however depends on the resultant force.
What is 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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A body with an initial velocity of 4m/s accelerates uniformly at the rate of 1.2 m/s² over a distance of 20 m. Calculate: (i) the final velocity of the body.(ii) the time in which the body covers that distance. (iii) the average velocity of the body during the journey
v² = u² + 2as
v² = 4² + 2 × 1.2 × 20
v² = 16 + 2 × 12/10 × 20
v² = 16 + 48
v² = 64
v = 8 ms - 1
So,the final velocity is 8 m/sii)
V = u + at
8 = 4 + 1.2 × t
8 - 4 = 1.2t
4 = 12/10 t
4 × 10 /12 = t
3.33 = t
So,the time is 3.33 secondsiii)Average velocity = Displacement/Time
20/3.33
6.006 ms - 1
So,the average velocity is 6.006 m/sHow do you convey your emotion in text communication?
Hey there! Hope this answer helps.
Answer:
Emojis: Emojis are a useful way to convey human emotions due to their human characteristics; they mimic the expressions of the human face, they serve as simple shorthand for conveying an emotional state without directly stating it :)Punctuation: Not only for clarity, but different uses of punctuation can be convey different things - e.g. exclamation marks (!) can express anger, emphasis, sadness or delight depending on the context, and full stops (.) or periods in the US are interpreted as bold, assertive or aggressive. On the same note, texters find sentences with no period or with ellipses more passive or open ended and formalLength: Think about it like this: "I read about your relative's passing on Insta-gram and am sorry for your loss" likely has more emotional impact than "read abt ur family's passing on ins-ta, sry 4 ur loss."- profparis
Ray X strikes a flat mirror at an angle of 0 = 26 degrees. What is the incidence?
The incidence is maybe 26=9
Lab:Motion
Here you go if you need help!!!!!!
There is an increasing use of LEDs for lighting. What does LED stand for?
Answer:
LED stands for light emitting diode. LED lighting products produce light up to 90% more efficiently than incandescent light bulbs.
The weight of an object on the surface of mass is 1850 Newton and its mass is 500kg.Find the acceleration due to gravity on mars
F = m.a
a = F/m
a = 1850/500
a = 3.7 m/s²
1. Some ripples spread across a pond with a frequency of 5 Hz. How much would be the period of these ripples.
2. A sound wave has a time period of 0.01 seconds. What is its frequency?
3. A radio wave has a time period of 0.0000002 seconds. What is its frequency?
1)The period of these ripples will be 0.2 sec.
2)The time period of sound wave will be 100 Hz.
3)The frequency of the sound wave will be 5×10⁶ Hz.
What is frequency?Frequency is defined as the number of repetitions of a wave occurring waves in 1 second.
Frequency is given by the formula as,
Frequency of ripples (f₁)=5 Hz
The period of these ripples will be;
T₁=1/f₁
T₁=1/5
T₁=0.2 sec
The time period of sound wave (T)=0.01 seconds
The time period of sound wave;
f=1/T
f=1/0.01
f=100 Hz
Time period of A radio wave = 0.0000002 seconds
The frequency of the sound wave is;
f=1/T
f=1/0.0000002
f=5×10⁶ Hz
Hence,the period of these ripples will be 0.2 sec.
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A rifle recoils while firing a bullet. The speed of the rifle's recoil is small because the
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.
Do electrons flow easier with
HIGH resistance or LOW
resistance?
A. low
B.high
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.
if earth struck by a small asteroid how will the hours of daylight and night change?
Answer:
Nothing
Explanation:
We get struck by small asteroids. imperciptable changes in our degree of tilt and rate of rate of rotation
How much kinetic energy does a 0.30-kg stone have if it is thrown at44
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
How would speed change if the wave period increase
Answer:
The greater the period the faster the wave moves (Figure 10.5).
Explanation:
1. Describe the three Newton's Law of Motion.
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.
Which one is evidence that electricity is flowing?
A motor in a circuit is not moving
The battery is connected
A light bulb shines
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.
A tourist, who weighs 805 N, is walking through the woods and crosses a small horizontal bridge. The bridge rests on two concrete supports, one at each end. He stops one-fourth of the way along the bridge. Assume that the board of the bridge has negligible weight. What is the magnitude of the vertical force that a concrete support exerts on the bridge at the far end?
The magnitude of the vertical force that a concrete support exerts on the bridge at the far end is 201.25 N.
What is force?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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Sonar is used to determine the speed of an object. A 40 kHz signal is sent out, and a 42 kHz signal is returned. Assume the speed of sound is 345 m/s. How fast is the object moving?
Sonar is used to determine the speed of an object. The object is moving at 8.4146 m/s.
What is frequency?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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A pendulum completes 3 cycles in 12 seconds. What is its period?
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]
It is often said the media can make or break a person especially, sports personalities. Explain how that happens.
I'm going to school tomorrow so I can get the best of it
1. The object or point from which movement is determined is called a
of
Answer: reference point
Explanation: A reference point could be a put or question utilized for comparison to decide in case something is in movement.
An object moving at 15 m/s slows uniformly at a rate of 2.0 m/s each second for 5.0 s. What is its final speed?
What arguments can you think of for staying single
Answer:
Staying single makes it a whole lot easier to focus on yourself, gain self love, and work on yourself!
Explanation:
You are walking through the woods and cone acroos an old well thats 15 meters deep if the speed of sound and air is 340 m/s then how long would it take to hear echo
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
How long will it take for a person walking at 8 Km per hour to cover a distance of 56 Kilometers?
Answer:
7 hrs
Explanation:
56 km / 8 km/hr = 7 hr
Discuss why schizophrenia disorder interests you.
Describe how schizophrenia impacts someone on a daily basis.
Describe the labels and/or stigma associated schizophrenia. (i.e. “crazy,” “insane,” “get over it,” “psycho,” “neurotic,” etc).
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:
How much work is done on the object as it moves from 6.0m to 9.0m
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.