Answer:
Tri
Explanation:
This compound is sulfur tri-oxide
Answer: sulphur trioxide
Explanation: you need to express number of atoms in a molecular compound
Di =2. Tri 3 tetra 4
if you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves
Answer:
When light enters from air to water i.e. it is moving from rarer to denser medium, it changes its original path as there is a change of speed of light and deflects itself towards the normal. This is known as the refraction of light and this is why a pencil in a cup of water looks as if it is broken and larger.
Explanation:
A wave has a period of 2s and a wavelength of 5m. What is the speed of the wave?
Answer:
10m per Second
Explanation:
A coin falls off a table and is traveling to the ground. Which claim about the forces acting on the coin must be true?
(Choice A)
There is a net force on the coin.
(Choice B)
There are no forces on the coin.
(Choice C)
There is no net force on the coin.
(Choice D)
There is not enough information.
A coin falls off a table and is traveling to the ground. There is a net force on the coin which is responsible for the motion of the coin. Thus, the correct option is A.
What is Net force?The net force can be defined as is the sum of all the forces which are acting on an object. Net force acting upon an object can accelerate its mass. Some other forces also acts on a body either at rest or motion. The net force is used in a system when there is a significant number of forces acting on the object.
A coin which falls off a table and is still traveling to the ground. Then, it can be concluded that there is a net force which is acting on that coin which is responsible for the motion of the coin.
Therefore, the correct option is A.
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A stuntman drives a car off of a parking garage. The car lands 68.38 meters away from the base of the garage. If the stuntman drove the car at 19 m/s, how tall is the parking garage?
Answer: 63.43 m
Explanation:
Given
Car lands 68.38 m away from the base of the garage
Stuntman drove the car with speed [tex]u=19\ m/s[/tex]
Since there is no acceleration in the horizontal direction, so there is no change in velocity
[tex]\Rightarrow 68.38=19\times t\\\Rightarrow t=3.598\ s[/tex]
time taken to cover 68.38 m is 3.598 s
In this time car travels a vertical distance of h
Such that we can write
[tex]\Rightarrow h=u_vt+\frac{1}{2}at^2\\\\\Rightarrow h=\frac{1}{2}gt^2\\\\\Rightarrow h=0.5\times 9.8\times (3.598)^2=63.43\ m[/tex]
Which bolt would experience the greater torque?
Α.) Α
b.) B
c.) both are the same
Answer:
c.) both are the sameExplanation:
A and B have same distance from the boltThe torque applied from the same distance will be sameCorrect choice is C
Answer:
c) Both are the same
Explanation:
The distance from bolt to A and the distance from bolt to B is equal.
It means that A = B. Then both the bolts will experience nearly the same torque. Hence, the option (c) is correct.
Is pushing a car across a smooth road positive, negative or zero work?
A person stands 6.00 m from a speaker, and 8.00 m from an identical speaker. What is the frequency of the second (n = 2) interference maximum (constructive)? (Hint: v= xf = 343 m/s) (Unit = Hz)
Answer: 343
Explanation: i know it sounds weird but its right
The frequency for the maximum constructive interference will be 343 Hz.
What is the interference of waves?The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.
The effect is the sum of the individual wave amplitudes at each site where more than one wave is present.
From the constructive interference;
[tex]\rm L_1-L_2 = 2 \lambda \\\\ 2\lambda=8-6 \\\\ \lambda= 1 \ m[/tex]
The frequency is;
[tex]\rm f= \frac{c}{\lambda} \\\\ f= \frac{343}{1} \\\\ f= 343 \ Hz[/tex]
Hence,the frequency for the maximum constructive interference will be 343 Hz.
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All of the different desert animals living together in the Sahara Desert make up a(n)...
O Population
O Community
O Ecosystem
O Organ System
The Law of Octaves is a relationship that can be observed when
elements are ordered by atomic mass. Newlands observed that every
____ element exhibited similar properties.
Answer:
8 elements
Explanation:
It’s right ✌
how many grams are in 3 moles of helium?
Answer:
12 g
Explanation:
No of moles = [tex]\frac{mass}{mass.in.1.mole}[/tex]
But we have to find the mass, not the number of moles. So,
Mass = No. of moles × mass in 1 mole
Mass of helium = 4
Mass = 3 × 4
= 12 grams
PLS HELP (50 POINTS) I WILL ALSO MARK BRAINLIEST!!!
how does the sun rise and set
a.earth orbit around the sun
b.The sun is center of solar system
c.earth rotates on it tilted axis and orbit around the sun at the same time
Answer:
c. earth rotates on it tilted axis and orbit around the sun at the same time
Explanation:
Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.
This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun. Thus, this makes us to experience day and night (sun rise and sun set) due to the rotation of planet about its axis.
Hence, the sun rise and set because the earth rotates on it tilted axis and orbit around the sun at the same time
Imagine that you are sitting on a couch watching TV and that you will continue sitting on the couch watching TV until someone changes the channel. This situation is a metaphor for which of Newton's laws of motion?
-The law of inertia
-The law of action-reaction
-The law of acceleration
-None of the above
Answer:
I think the law of inertia
Of the cloud types described here, which one cannot be easily classified as low, middle, or high?
Cirrus
cumulonimbus
stratus
Stratocumulus
A cloud that cannot be easily classified as low, middle, or high is a cumulonimbus cloud. The correct option is B.
What is a cumulonimbus cloud?Cumulonimbus clouds are known as thunderstorm clouds because they produce hail, torrential rain, snow, lightning, and, in extreme circumstances, tornadoes. These clouds are generated very near the surface of the ground, carrying a lot of moisture.
As a result of constant rubbing, the moisture in the clouds becomes ionized, producing light as a result of the static charge. Evaporation causes water droplets to enter the atmosphere. These water droplets will condense into ice because of the chilly atmosphere.
More ice droplets congregate to form cumulonimbus clouds, which, when the cloud is too dense, will begin to rain.
Therefore, the correct option is B. cumulonimbus cloud.
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Your car is initially at rest when your hit that gas and the car begins to accelerate at a rate of 1.464 m/s/s. The acceleration lasts for 10.8 s. What is the final speed of the car and how much ground does it cover during this acceleration?
Answer:
A force 1500 n to a 100 kg car . what is the acceleration of the car
A sports car of mass 1000 kg can accelerate from rest to 27 m/s in 7.0 s. what is the average forwa...
A tow truck exerts a force of 2000 N on a car acceleration it at 1 m/s/s what is the mass of the ca...
A car starts from rest and accelerate at a constant rate. After the car has gone 50m it has a speed...
A force of 50 n is exerted to the right on a 15 kg car at the same time a 30 n force is exerted to ...
A 1100-kg car pulls a boat on a trailer. (a) what total force resists the motion of the car, boat, ...
Your own car has a mass of 2000 kg if your car produces a force of 5000 n , how fast will it accele...
If a 100-N net force acts on a 50-kg car, what will the acceleration of the car be?
A train consists of a caboose (mass = 1000 kg), a car (mass 2000 kg), and an engine car (mass 2000 ...
A car initially at rest undergoes uniform acceleration for 6.32 seconds and covers a distance of 12...
A car initially moving at 9 m/s begins accelerating at its maximum acceleration of 4 m/s2. if the c...
Car A runs a red light and broadsides Car B, which is stopped and waiting to make a left turn. Car ...
Speed Racer has car that accelerates at 5 m/s2 . If the car has a mass of 1000 kg, how much force d...
You push forward on a car with a force of 150 N, but the car does not move. What is the net force o...
How much time does it take for a car to accelerate from a standing start to 22.2 m/s if acceleratio...
A car has a mass of 1 500 kg and acceleration of 2.0 m/s2 what is the nat force acting on the car
A car starts from rest and travels for 5.0s with a uniform acceleration of 1.5 m/s^2. what is the f...
In a performance test, each of two cars takes 8.4 s to accelerate from rest to 27 m/s. car a has a ...
If a net force of 5.0 N forward acts on a 0.60 kg toy car what is its acceleration
Explanation:
please help me i need help only way i’ll pass
Answer:
they require a medium
Explanation:
your welcome.............
what is the gravitational potential energy of the rock if its weight is 15 newtons its mass is 1.53 grams and it is 30 meters above the ground?
Answer:
16. An object has a gravitational potential energy 41,772.5 Jof and has a mass of 1550 kg. How high is it above the ground? Plz help
please help me i need it it’s the only way i’ll pass
Answer:
I think the Answer is B. Longitudinal waves
8. As you throw a 2.00 x 102 g baseball, your hand moves a distance of 80.0 cm before you release the ball. If you exert an average force of 55.0 N on the ball while it is in your hand, determine:
Answer:
v = 21.0 m / s
Explanation:
In this exercise, it is generally asked to determine the final speed of the ball.
Let's start by finding the acceleration of it
F = ma
a = F / m
let's reduce the magnitudes to the SI system
m = 2.00 102 g (1kg / 1000g) = 0.200 kg
x = 80.0 cm (1m / 100 cm) = 0.800 m
we calculate
a = 55.0 / 0.200
a = 275 m / s
now we can use kinematics, where the ball has an initial velocity of zero and travels a distance x = 80 cm with the force
v² = v₀² + 2 a x
v² = 0 + 2ax
v = [tex]\sqrt{2ax}[/tex]
let's calculate
v = [tex]\sqrt{2 \ 275 \ 0.800}[/tex]Ra 2 275 0.800
v = 20.98 m / s
if we use the criteria of significant figures
v = 21.0 m / s
If a 1.8 m tall man that weighs 90 kg stands next to a 10 kg box resting on the ground, the total work done if he lifts the box to the top of his head will be 2,940 J.
True or False
Answer:
false
Explanation:
A loaded railway car with a mass 5500 kg is rolling to the right at 2 m/s when it collides and sticks to an empty railway car with a mass of 2500 kg rolling to the left on the same track at 3 m/s. What is their speed and direction of the pair after the collision?
Answer:
lolol lolol lolol lolol lolol lolol 65
What happens to the force between two charged particles if the distance between them is cut in fourth?
Answer: The force between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Hence, if the distance between charges is halved (charges remaining kept constant), the force between the two charges is quadrupled.
Explanation: hope i helped c;
What happens to the force between two charged particles if the distance between them is cut in fourth is that the force between the two charges is directly proportional to the product of the charges and proportional to the square of the distance between them.
An example of a waste product of cellular respiration is
a]feces
b]oxygen
c]carbon dioxide
d]ammonia
Answer:
(C) Carbon Dioxide!
Explanation:
This is what animals, and even plants, breath out. :)
How many seconds are there in 3 days 38 hrs? Explain.
For an investigation, a teacher dropped a metal bolt into a container of maple syrup and asked students to remove the bolt without touching the syrup. The students first tried to use a strong magnet to remove the bolt, but it remained on the bottom of the container. They finally poured the syrup into another container to get the bolt out. Which of these best describes the bolt’s physical properties?
A.
The bolt is magnetic and less dense than the maple syrup.
B.
The bot is non magnetic and less dense than the maple syrup.
C.
The bolt is non magnetic and more dense than the maple syrup.
D.
The bolt is magnetic and has the same density as the maple syrup.
Choice-C is the right one.
-- The bolt didn't react to the magnet, and just laid there. That tells you that the bolt was made of a non-magnetic material.
-- The bolt didn't float. It went straight to the bottom. That tells you that it's more dense than the fluid around it.
What is the relationship between pitch and wavelength
Answer:
Musicians use frequency is pitch.
The shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound. The shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound. Hope it helps!
The work-energy theorem states that the work done on an object is equal to a change in which quantity?
kinetic energy
displacement
potential energy
mass
Answer:
kinetic energy
Explanation:
a
how can you take my step sis out the washer machine?
From what I have seen, you do not take your step sis out of the washing machine, you ask her if she has games on her phone and play mine craft like a god obv.
Do magnets have to touch each other for a magnetic field to be present?
Answer:
no
Explanation:
A circle graph shows that one-fourth of the students in a particular school ride the bus every day. What is this equivalent measurement in radians? In degrees?
Answer:
it's 1.57... radians and 90°
As par circle graph, π/2 radian part of total number of the students in a particular school ride the bus every day.
What is circle graph?Pie charts are another name for circle graphs. The graph is shaped like a circle, with many wedges that each represent a portion of the overall.
The circle graph is commonly referred to as a pie chart since these wedges frequently resemble pie slices. The circle graph's angles are proportionate to the quantity they each represent.
According to circle graph:
Total number of student in the particular school = 2π radian.
So, one-fourth of total number of student in the particular school = 2π/4 radian
= π/2 radian.
Hence, according to circle graph, π/2 radian part of total number of the students in a particular school ride the bus every day.
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