Answer:
A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon. ... By turning a small input current into a large output current, the transistor acts like an amplifier. But it also acts like a switch at the same time.
Explanation:
What is the wavelength of a wave?
Definition: Wavelength can be defined as the distance between two successive crests or troughs of a wave.
A plane starts out at rest. 100 seconds later, its velocity is 300 m/s. What
vas its average acceleration during this time?
Answer:
3 m/s^2
Explanation:
avg. acceleration= (change velocity)/ time
[v(final)-v(initial)]/(t2-t1)
[(300 m/s)-(0 m/s)]/(100s-0)
(300 m/s)/(100s)
= 3 m/s^2
What is the magnitude of the resultant vector? Round your answer to the nearest tenth
Answer:13.9 on edgy I just did it
Explanation:
Answer:
13.9
Explanation:
just did it
As a vehicle approaches a stop sign, the driver applies the brakes and brings the vehicle to a stop. How is this action explained using Newton’s Second Law?
Which of the following is true about wedges?
A.)Wedges are a type of ramp.
B.)Wedges are a type of screw.
C.)Wedges are a type of inclined plane.
D.)Wedges are a type of lever.
Answer:
wedges are a type of inclined plane.
Explanation:
i just answered :) :) :)
Wedges are a type of inclined plane is true about the wedges.aThe type of wedges is categorized on the basis of the angles of the inclined plane.
What are wedges?
A piece of wood, metal, or other material with one thick end and a thin edge that is used to attach or separate two things or sections of an object."A wedge was used to fasten the door"
The wedge family consists of four designs: pitching wedge, gap wedge, sand wedge, and lob wedge. Each stick has a different loft, which makes it better for various shots.
The Pitching Wedge is the wedge with the lowest loft. It may be utilized for full swings toward the greens as well as lengthy chip shots.
Hence wedges are a type of inclined plane is true about the wedges.
To learn more about the wedges refer to the link;
https://brainly.com/question/2285283
If the mass of one object is doubled and mass of other remains the same and if distance between them is halved then how does the gravitational force change?
Which is not a reason why the mass of an atom is expressed in atomic mass units rather than in grams?
Scientists could not agree on a standard.
Atomic mass allows for mass differences in isotopes.
The mass in grams is too small to be useful.
Atomic mass units make it easier to compare the masses of atoms.
Answer:
A. scientists could not agree
Answer:
scientists could not agree on a standard
Which two quantities can be used to describe motion?
A. Displacement and velocity
B. Displacement and weight
C. Speed and weight
D. Velocity and mass
Displacement and velocity are the two quantities that can be used to describe motion.
What are the quantities used to describe motion?Motion is defined in terms of displacement, time, velocity, and acceleration. Velocity is defined as the rate of change of displacement whereas acceleration is defined as the rate of change of velocity.
Most of the quantities used to describe motion can be categorized as vectors or scalars. A vector is a quantity that is described by both magnitude and direction whereas a scalar is a quantity that is described by magnitude only.
The motion of an object can be defined as Uniform motion which means equal distance is covered in equal time and a non-uniform motion means an equal distance is covered by an object in equal intervals of time.
So we can conclude that option A is the correct answer.
Learn more about motion here: https://brainly.com/question/453639
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Give 5 examples of physical properties that could be used to describe a solid
How far can a person run in 13.22 minutes if he or she runs at an average speed of 12.33 km/hr?
Answer:
2.72 km
Explanation:
(12.33 km)/ 1 hr * (1 hr)/ 60 min
0.2055 km/ min
distance=rate * time (assuming v is constant,
a=0)
(0.2055 km/ min)*(13.22 min)
2.72 km OR 2716.71 m
what are the units for gravitational field strength ?
Answer:
gravitational field strength (g) is measured in newtons per kilogram (N/kg)
Which of the following best describes refraction?
A) The blending of a wave a girls room or passes through opening in a barrier
B) The blending of one wave as two or more waves try to occupy the same space at the same time
C)The bending of a wave as it passes at an angle from one material to another
D)The bending of a wave as it reflects at an
angle from a surface
Answer: C Is The Answer
Explanation:
The option that best describes refraction is Option C. The bending of a wave as it passes at an angle from one material to another.
Refraction is the shift in direction induced by a wave's change in speed when it travels from one medium to another. It is the bending of light when it travels via a translucent medium. Refraction can take place in sound waves or water waves.
The statement is in Option A and Option B is incorrect because refraction does not blend but bend.
Similarly, from Option D, refraction does not reflect at an angle from a surface but reflection does.
Therefore, we can conclude that the Option that best describes refraction is seen in Option C, i.e. The bending of a wave as it passes at an angle from one material to another.
Learn more about refraction here:
https://brainly.com/question/23784827?referrer=searchResults
Find the mass of an object on earth that weighs 39 N?
Answer:
3.9kg
Explanation:
From newton's second law of motion
F =ma
a = 10m/s^2
F=39N
a= F/m
a= 39/10
a= 3.9m/s^2
Find kinetic energy if that same mass is now moving at a velocity of 3 m/s
Answer:
what is the mass???
Explanation:
just take the mass(kg) and half it
then take the halved mass and multiply it by 3 m/s
The temperatures (in degrees Fahrenheit) in Long Island recorded by the weather bureau over a week were 42, 49, 53, 55, 50, 47, and 52. Which measure should the weather bureau use to calculate how far apart the upper and lower quartiles of the week's daily temperatures were?
Answer:
Inter Quartile Range
Explanation:
Quartile is a positional statistical average, which divided the data into 4 equal halves.
Q1 (Lower Quartile) has 25% data below it, 75% above it. Q3 (Upper Quartile) has 75% data below it, 25% above it.
Interquartile range is the measure used to calculate how far the lower & upper quartiles are.
write about any five usefulness of pressure in our daily life
Answer:
Some common use of air pressure in daily life is inflating tires, playing musical wind instruments, drinking through straw, flushing toilet, drawing water from well, operating barometer, blowing up balloon, breathing, maintaining body shape especially abdomen.
Explanation: )
Answer:
inflating balloon. pressing the switch.blowing straw.drawing water from wellbreathingHope this is helpful and I would appreciate if you add me as brainliest
If an object starts from rest, what is its initial velocity?
Answer:
0 m/s
Explanation:
velocity= change in displacement/ time
at rest, the ball does not travel any distance
0/ t
=0
Which will hit the ground first if a golf ball and a soft ball are dropped from the same height simultaneously?
Answer:
they both would hit at the same time
Explanation:
Answer: Whichever one is heavier will hit first
Explanation:
A giraffe has an acorn fall from his mouth while he is eating. The giraffe's mouth is 6 meters off the ground. It falls and hits a rock that is 1.5 meters off the ground. How long did it take the acorn to reach the rock?
Answer:
I would say at least 3 seconds
Explanation:
This may not be 100% accurate this is my opinion this could help give you an idea also let me explain. If the acorn fell 6 meters off the ground at 1.5 meters in my opinion it should go by 2 meters for every 1.5 meter in this order 1.5, 3, 4.5 and 6!
the volume of a cube is 64 meter cubic. what is the length of the side of the cube?
A tennis ball is thrown straight up into the air with an initial velocity of 38 m/s.
a. How long does it take to reach its highest point?
b. How high does the ball travel?
Answer:
a) 3.9s
b)74m
Explanation:
a) v=u+at
0=38+(-9.8)t
-38=-9.8t
t=-38/-9.8
t=3.877s
t=3.9s
b) s=ut+1/2at²
s=(38×3.9)+1/2(-9.8×3.9²)
s=148.2 -74.529
s=73.671
s=74m
Halpp
will give brainliest
Answer:
The answet is B. Hope thia is right! btw this is also my lesson xD
How would YOU define speed?
Answer:
Speed is a way of measuring how quickly something is moving or being done, or something moving fast. An example of speed is a car being driven 45 miles per hour. An example of speed is someone cleaning a room in 10 minutes.
Considering the activity series given for nonmetals, what is the result of the below reaction? Use the activity series provided. F > Cl > Br > I
Br2 + NaF Right arrow.
no reaction
Na + FBr2
NaBr + F2
Na2F + Br2
Answer:
A.) no reaction. Edge 2020.
Explanation:
There will be no reaction.
The activity series is also known as the reactivity series. It arranges elements in order of reactivity.
Given the activity series; F > Cl > Br > I, we need to predict whether the reaction; Br2 + NaF will proceed or not.
Looking at the reaction, Br is less than F in the activity series so Br can not displace F in NaF. Hence, there will be no reaction.
Learn more: https://brainly.com/question/4144781
it takes you 30 minutes to walk an average velocity of 2.om/s south to school. What is your displacement?
Answer:
3600 m SOUTH
Explanation:
avg velocity= (change displacement)/(change in time)
2.0 m/s= x/ (1800 s)
displacement= (2.0 m/s * 1800s)= 3600 m SOUTH
.......
sign explanation
2.0 m/s south= -2.0 m/s (downwards direction)
-2.0 m/s= x/ (1800 s)
x= -3600 m
Name any two medium which states about the weather report.
Answer:
1. Government Agencies
2. Television Stations
Explanation:
Weather reports are needed by members of the public to be alert on daily and future weather trends as this would affect how they arrange their affairs. The weather can affect daily movement. For example, when it rains heavily, movement might become limited. Government agencies such as the National Weather Service (NWS), state the weather report.
Television channels like the Cable News Network have programs dedicated to weather reporting. The reporter states what the weather would be like in different cities and the public take note of that.
Introduction This section describes the principles and concepts related to the experiment. It is used to help the person reading your report to understand the information that serves as foundation for the experiment. It also includes a brief statement about the purpose of the lab. Example: Surface tension is the attractive force exerted upon the surface molecules of a liquid by the molecules beneath. Water has a high surface tension because there are strong attractive forces between water molecules. Adding surfactants, like soap, can reduce the surface tension of a liquid. The purpose of the experiment was to determine the effect of soap on the surface tension of water.
Answer:
See explanation
Explanation:
It is a common observation that when water drops on a clean glass surface, it appears as little bags of water.
Surface tension makes water surface act like a stretched elastic skin bag.
Surface tension is caused by attractive forces between the molecules at the surface and the molecules in the bulk of a liquid. Remember that the forces of cohesion between water molecules are very strong.
When surfactants such as soap are added to water, the surface tension of water is decreased, hence the experiment.
Cell phones use digital signals to send and receive information. These digital signals travel as what kind of wave?
ОООО
Gamma rays
X-rays
Microwaves
Radio waves
the answer would be microwaves!
Answer:
Microwaves
Explanation:
Explanation:
what comes down, but never goes up?
Answer:
The answer is RAIN!!!!!!
Explanation:
Rain always goes back up in the form of condensation, steam etc etc etc. That is where the rain comes from
The changes that are visible during a chemical reaction are signs that the nuclei in the reactants have been rearranged.
Please select the best answer from the choices provided
ОТ
OF
Answer:
the answer is F
Explanation: I put T on the question and got it wrong so it's F on edge ;)
