PHYSICS HIGH SCHOOL

Whats the answer
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whats the answer ---------------------------- - 1

Answers

Answer 1
Answer:

Answer:

repel each other

Explanation:

The magnitude of the charge of an electron is called... ... If a positively-charged glass rod is suspended so that it turns easily and another positively-charged glass rod is brought close to it, the two rods will... Repel each other.

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Weather differs from climate in that weather can change on a daily basis and is not considered a description of year-to-year conditions of temperature and precipitation.
A person uses a screwdriver to turn a screw and insert it into a piece of wood. The person applies a force of 20 newtons to the screwdriver and turns the handle of the screwdriver a total distance of 0.5 meter. How would these numbers be different if the person inserted a nail with a hammer instead of the screw with the screwdriver?A. The force applied would be greater, but the distance would be shorter.B. The force applied would be less, but the distance would be greater.C. The force applied would be the same, but the distance would be shorter.D. The force applied would be the same, but the distance would be greater.
the engine of a vehicle Move It Forward with a force of 9600 Newton against a resistance force of 2200 Newton is the mass of the vehicle is 3400g calculate the acceleration produced​
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If you throw a ball up with a velocity of 7 m/s, how long will it take for the ball to reach the top of its path?A. 0.11 Seconds
B. 0.41 Seconds
C. 0.71 Seconds
D. 1.01 Seconds

Answers

Answer:

c. 0.71 [s]

Explanation:

To solve this problem we must use the following equation of kinematics.

v_(f) =v_(o) -g*t

where:

Vf = final velocity = 0 (because when the ball reaches the top, there is no movement)

Vo = initial velocity = 7 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time [s]

Note: The negative sign of the equation means that the movement is againts the direction of the gravity acceleration.

0 = 7 - (9.81*t)\nt = 0.713 [s]

Calculate surface tension of an enlarged radius of 4cm to 6cm and amount of work necessary for enlargement was 1.5×10^-4 joules

Answers

Answer:

T=7.5*10^(-5)

Explanation:

From the question we are told that:

Radius r=2cm

Work done W=1.5×10^-4 joules

Generally the equation for Work done is mathematically given by

 W=T.dA

Therefore

 T=(W)/(dr)

 T=(1.5*10^(-4))/(2)

 T=7.5*10^(-5)

What are the Vedas?a) priests

b) religious writings

c) writings of the Buddha

d) Hindu gods

Answers

Answer:

B religious writing

Explanation:

The Vedas are a large body of religious texts originating in ancient India. Composed in Vedic Sanskrit, the texts constitute the oldest layer of Sanskrit literature and the oldest scriptures of Hinduism. Hindus consider the Vedas to be apauruṣeya, which means "not of a man, superhuman" and "impersonal, authorless

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? Check all that apply. -radio waves
-infrared light
-microwaves
-gamma rays
-visible light
-X-rays

Answers

On this list, 'gamma-'s and 'X-'s are the ones.

its gamma rays and x-rays they are the only two out of my knowledge.

The main difference between speed and velocity involves A. gravity.
B. distance.
C. weight.
D. direction.

Answers

Velocity is speed AND its direction.

The Correct answer to this question for Penn Foster Students is: Direction

a 100 watt microwave oven takes 90 secondd to heat a bowl f soup How many joules of energy does it use ?

Answers

Before I answer the question, please let me strip away all the color and decoration of the microwave story:

      (100 watts) = 100 joules per second

        (100 joules/second) x (90 seconds)  =  9,000 joules .


I did that because the "100 watts" on the label on the front of the
microwave oven is the "cooking power" ... the power of the radio
waves that it shoots into the chamber to heat the soup or the meatloaf. 

The whole appliance actually uses a lot more power than that to do its job. 
The light, the turntable, and the cooling fan all use some power, and the
magnetron is not 100% efficient, so the appliance has to put way more
than 100 watts into the magnetron to wind up with 100 watts available
to shoot to the meatloaf.  

When you ask "How much energy does it use ?", the answer is: 
A lot more than what eventually comes blasting into the chamber
to actually cook with.
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