The body weighing 8kg moves in a straight line uniformly accelerated with an acceleration of 3m / s? on a horizontal surface, under the action of force 60N.Find a) What is the friction force acting on the body) The coefficient of friction between the body and the surface where it moves

Answer:

What are the options???

Answer:

Electronic stopwatch

Explanation:

lectronic stopwatch, stop clock, pendulum clock and hour glass are the instruments used for measuring the time. Among the following, electronic stopwatch has the highest level of accuracy whereas hourglass has the lowest level of accuracy in measuring time.

Answer:

12.72 sec

Explanation:

The time it takes to travel a certain distance can be found by dividing the distance that needs to be travelled by the speed with which you are travelling, therefore...

[tex]Time = \frac{Distance}{Speed} = \frac{318}{25} = 12.72 sec[/tex]

Answer:

By decreasing the resistance

Answer:

work = 500*3 = 1500 J

1500J in 5 sec = 300 watts

Explanation:

Answer:

it is using the same power

Explanation:

it is using the same power because it has to move longer and a farther distance while the other one has double the power but less the distance

The arrow A represents the direction of upthrust.

Thrust is the pressure acting generally on a surface. Its SI unit is Newton (N). Thrust is the pressure that actions a plane via the air. Thrust is used to triumph over the drag of an airplane, and to conquer the load of a rocket.

As anxiety is the significance of pressure, it is measured in newtons (or now and again kilos-force) and is usually measured parallel to the string on which it applies. Thrust is a response pressure defined quantitatively by means of Newton's.

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Answer:

the friction force f=36

and the coefficient of friction =0.45

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The best method to use in prevention of self-demagnetization of a permanent magnet is by use of a keeper. Keepers were also commonly known as amateurs. They help in storing magnets safely, especially those that have low coercivity ( magnets that are extremely susceptible to stray fields).

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Hope It Helps!

Answer:

Composition. The universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the universe) and antimatter.

Explanation:

your answer

Answer:

We conclude that the required momentum is 80 kgm/s.

Explanation:

Given

To determine

The momentum p = ?

Important Tip:

We can determine the momentum using the formula

[tex]p = mv[/tex]

where

now substituting m = 20 and v = 4 using the equation

[tex]p = mv[/tex]

[tex]p = (20) (4)[/tex]

[tex]p = 80[/tex] kg m/s

Therefore, we conclude that the required momentum is 80 kgm/s.

The momentum of the moving cart is 80kgm/s.

HOW TO CALCULATE MOMENTUM:

Momentum (p) = mass (m) × velocity (v)

Momentum (p) = 20kg × 4m/s

Momentum (p) = 80kg*m/s.

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UVA

I'm pretty sure it's UVA :)

Answer:

mass

Explanation:

Answer:

I believe it's not possible

Explanation:

there's really no way I currently know of that we can do that so I suppose no.

Answer:

Looks like A but I'm not sure.

Explanation:

dont take my word for it I might be wrong

Answer:

deforestación en el mundo es incontrolable

Answer:

Given

mass (m) =5kg

velocity (v) =7.3m/s

kinetic energy (k. e) =?

Form

[tex]k.e = \frac{1}{2} MV {}^{2} \\ = \frac{1}{2} \times 5 \times 7.3 {}^{2} \\ 133.23kj[/tex]

I hope this help

Answer: long handle

Explanation: they are better for tree planting and other hole-digging. Long shovel handles can reach deep into a hole. And you'll get better leverage, which is easier on your back. ... The lighter the shovel, the easier time you will have digging.

Answer:

When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. Like charges repel, and unlike charges attract.

Answer:

Three types of electromagnetic waves, used to transmit various information

Explanation:

A form of energy waves having both electric & magnetic fields are Electromagnetic waves. Three types -

Radio Waves - These have longest wavelengths & transmit data through radio, satellites, radar .

Micro Waves - These have shorter wavelengths & are used in cooking appliances & predicting weather.

X rays - These have more short wavelength and can penerate soft tissues like skin & muscle, hence are used for medical examining

Answer:

Three types of electromagnetic waves that are commonly used to transmit information are:

Radio Waves:

Radio waves are used for transmitting radio signals, television signals, and wireless communication. They are received by devices such as radios, televisions, and mobile phones with radio receivers.

Microwaves:

Microwaves are used for various purposes, including satellite communication, microwave ovens, and wireless data transmission. They are received by devices such as microwave antennas, satellite receivers, and Wi-Fi routers.

Light Waves (Optical Waves):

Light waves, specifically in the form of optical waves, are used for fiber optic communication, which involves transmitting data through optical fibers. They are received by devices such as optical receivers, which convert the light signals back into electrical signals for processing.

Each type of wave requires specific devices to receive and interpret the transmitted information effectively.

Answer:

1.4765 Hz

Explanation:

right on acellus

The frequency of an event is the inverse of time period.The frequency of the kid on bouncing the pogo stick is 1.47 Hz.

Frequency of an event is is the number of occurance of that event in unit time. It is the inverse of time period of that event. Hence frequency has the unit of s⁻¹ which is equivalent to Hz.

The frequency of a wave is the number of wave cycles per unit time. Frequency is directly related to the energy of the vibration or wave. Hence, as the frequency increases, energy increases.

Given that, the number of oscillations from the bouncing of the pogo stick is 22 times in 14.9 seconds. Thus , number of oscillations in 1 second is:

22 /14.9 s = 1.47 Hz.

Therefore, the frequency of the event created by the kid is 1.47 Hz.

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Answer:

The correct answer is - Regular soda can would sink and diet soda can will float.

Explanation:

The correct answer is - Regular soda can would sink and diet soda can will float.

Reason - As diet soda cans contains artificial sweetener so, the weight of the diet soda can is less the the eight of the regular soda so. Due to this reason , diet soda can will float and another one sinks in water.

Answer:

Explanation:

Since the bell is at rest in an elevated position, we can assume that it only has potential energy.

U=mgh is the formula for potential energy where U=potential energy, m= mass, g=acceleration due to gravity, and h=height.

Plug in known variables....

U=200kg*9.8m/s^2*45m

U=88200 joules of potential energy or letter D.

Answer:

C

Explanation:

The force applied to it is causing it to move right.

Answer: A motionless object can have energy. The energy that the object has is called potential energy.

Explanation:

Anxiety disorders are not completely curable.

An anxiety disorder is a disorder in which an individual easily develops feelings of anxiety even in situations which do not warrant such feeling.

The individual feels excessively anxious that it becomes a disability and does not allow the individual to live a  normal life.

There are five main types of anxiety disorders and they are as follows:

Anxiety disorders are not completely curable since they are purely psychological problems.

However, therapy and psychological assistance can lessen symptoms.

In conclusion, anxiety disorders affect productivity and makes an individual excessively anxious.

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Answer:

3.white light

Answer:

D

Explanation:

Answer:

6. False 7. True 8. False (Unbalanced forces acting upon an object changes the object's motion) 9. False 10. True (I'm not 100% sure if these answers are right though.)

Answer:

I confirm that answer LOL

Explanation:

Answer:

Amoeba (plural = amoebae) is a well known genus of unicellular organism, a protist. One of its most common species, the Amoeba Proteus, is about 0.2 to 0.3 mm large. The amoeba was first discovered by August Von Rosenhof in 1757.[1] It is a genus of protozoa that moves with false feet, called pseudopodia.

It's a single - called animal that catches good and moves around by extending fingerlike projections of protoplasm

Answer:

The dimension of thermal conductivity is M1L1T−3Θ−1, expressed in terms of the dimensions mass (M), length (L), time (T), and temperature (Θ). Other units which are closely related to the thermal conductivity are in common use in the construction and textile industries.

Explanation:looked it up for ya

Answer:

b is correct!!!!!!!!!!!

The best transport electrons around an electrical circuit are connected in series. Thus, the correct answer would be option (B) are connected in series.

An alternating current (AC) circuits continuously switches the direction of electron flow back and forth, which can result in fluctuations in voltage and current.

On the other hand, in a direct current (DC) electrical circuit, the electrons flow in one direction, from the negative terminal of the power source to the positive terminal. This unidirectional flow of electrons provides a consistent and stable flow of electricity throughout the circuit.

Connecting components in series mean that they are connected end-to-end, and the current flowing through them is the same.

Overall, the best option to transport electrons around an electrical circuit are to connect in series.

Therefore, the correct answer would be option (B) are connected in series.

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