Answer:
A) Increased levels of atmospheric carbon dioxide
Explanation:
All of the other options are positive effects
what is pressure in thermodynamics
A marble on a frictionless track, starting from point A in the drawing, is projected down the curved runway. (This means that the initial speed of the particle is NOT zero!) Upon leaving the runway at point B, the particle is traveling straight upward and reaches a height of 5.00 m above the floor before falling back down. Ignoring air resistance, find the initial speed of the particle (v0) at point A.
Answer:
v = 4.4 m / s
Explanation:
Unfortunately, the exercise scheme does not appear. Let's analyze the problem the marble leaves point A with an initial velocity, goes down and then rises to a given height where its velocity is zero, in the whole trajectory they tell us that the resistance is zero, so we can use the conservation relations of the enegy.
Starting point. Point A
Em₀ = K + U = ½ m v2 + mg y_a
point B.
Em_f = U = m g y
the energy is conserved
Em₀ = Em_f
½ m v² + mg y_a = m g y
½ m v² = m g (y -y_a)
v = [tex]\sqrt {2g ( y - y_a)}[/tex]
In the exercise the diagram is not seen, but the height of point A must be known, suppose that y_a = 4 m
v = [tex]\sqrt{ 2 \ 9.8 ( 5 -4)}[/tex]
v = 4.4 m / s
(03.05 LC)
A. Propane, a renewable resource, is used in some heating systems.
B. Wind power can turn turbines to generate electrical power.
C. Oil, a renewable resource, is processed to make jet fuel.
D. Geothermal power is generated from moving water.
I dont see the question to this
Answer:
The correct answer would be B
Explanation:
I took the test and we use wind and turbines to create a renewable energy source.
Earth's outer layer is divided into sections called plates.
True or false
Answer:
True
Explanation:
The earth is divided into huge slabs called tectonic plates.
The force of the pulley is 652 newtons. It accelerates at 53 m/s. How much does the object weigh. a 1230 grams b 1.230 gram c 123.0 grams d 12.30 Grams
Answer:
d. 12.30 grams
Explanation:
Given the following data;
Force = 652 N
Acceleration = 53 m/s²
To find how much the object weigh, we would need to determine its mass;
Force = mass * acceleration
652 = mass * 53
Mass = 652/53
Mass = 12.30 grams.
Therefore, the object weighs 12.30 grams.
A bike starts from rest and accelerates to a speed of 15 m/s
over the course of 5 seconds. The average acceleration of the
bike is m/s2
Answer:
please find attached pdf
Explanation:
find the area of the following shape:
Answer:54cm²
Explanation:Area of first rectangle=L×B=6×5=30cm²
Area of second rectangle=L×B=8×3=24cm²
Areas are added to 54cm²
Sorry to bother y’all again but can someone pls help me
Answer:
definitely top answer
Explanation:
because it make sense
Sankey Diagrams
LED light
What is the efficiency of this LED light?
10%
20%
80%
100%
Feedback?
Answer:i think 10
Explanation:
A car moving with an initial velocity of 36 m/s slows down at a constant rate of -2.8 m/s^2 . What distance does the car travel after 3 seconds of deceleration? Remember to include units in your answer! *
Answer:
the distance covered by the car is 95.4 m.
Explanation:
Given;
initial velocity of the car, u = 36 m/s
acceleration of the car, a = -2.8 m/s²
time of motion of the car, t = 3 s
The distance covered by the car is calculated as;
s = ut + ¹/₂at²
s = 36(3) + ¹/₂ x (-2.8)(3)²
s = 108 - 12.6
s = 95.4 m
Therefore, the distance covered by the car is 95.4 m.
can y'all please help me I really need you guys or just give me an idea or wrote the first paragraph please
Pleaseeee HURRYYY!!!
How far will a train moving at 5.7 km/min go in 45 minutes
Answer:
256.5 km
Explanation:
Answer:
256.5 km
Explanation:
There's you go, hope this helps.
If
you lift a 5 Kg bowling ball with a force of 49 N to a height of 40 m, what is the amount of work done on the
bowling ball to lift it?
Answer:
Workdone = 1960 Joules.
Explanation:
Given the following data;
Mass = 5kg
Force = 49N
Height (distance) = 40m
To find the workdone;
Workdone = force * distance
Substituting into the equation, we have;
Workdone = 49*40
Workdone = 1960 Joules.
Therefore, the amount of work done on the bowling ball to lift it is 1960 Joules.
Only the smartest person in science can help me right now...
1. Use the given soil triangle. What percentage of sand does loam have?
2. Use the given soil triangle. What percentage of silt does loam have?
3. Use the given soil triangle. Look for the letter B in Sandy Clay Loam. What percentage of clay does "B" have?
4. Use the given soil triangle. Look for the letter B in Sandy Clay Loam. What percentage of silt does "B" have?
Answer:
Loam is 40% sand, 40% silt, and 20% clay
Explanation:
The diagram shows the flow of water through a hydroelectric power station. The falling water
turns the turbines. The movement of the turbines causes the electrical generators to generate
electricity
Write the equation which links kinetic energy, mass and speed. 5
(1 Point)
Answer:
KE = [tex]\frac{1}{2}[/tex] m[tex]v^{2}[/tex]
Explanation:
In the generation of energy from hydroelectric power station, the motion of water, and the turbines are paramount. The falling flowing water turns the blades of the turbine, which in-turn causes the movement of a coil within a strong magnetic field.
The motion of the coil which cuts the strong magnetic field induces current. Thus, the system generates electrical energy.
The equation that links kinetic energy (KE), mass (m) and speed (v) can be expressed as:
KE = [tex]\frac{1}{2}[/tex] m[tex]v^{2}[/tex]
Organ systems are groups of organs that do not carry out similar
functions
True
False
Answer:
False.....................................
In which scenario does radiation occur? warming soup on a stove drying towels at the beach cooking eggs in boiling water warming a sore muscle with a hot pack
Answer: drying towels at the beach.
Explanation:
Radiation simply has to do with the energy that is gotten from a particular source and then goes through some materials. It simply means the way energy is being transmitted as waves or heat through a certain medium.
From the options given, the scenario whereby a radiation takes place is when drying towels on the beach.
Answer:B-drying towels at the beach
Explanation:
A coil of wire can become a temporary magnet if connected to a battery
O True
O False
Answer:
true
Explanation:
An Electromagnet is called as a temporary magnet, because electromagnet is made up of insulated copper wire wrapped around soft iron, which allows current to flow in it and at that moment iron gains it magnetic properties and when the current is switched off, then there will be no flow of current and hence iron loses its magnetic properties.
Hence it works temporarily as long as electric current flows in a conductor and hence known as temporary magnet. .
Increasing an object's height also results in an increase of the object's
REALLY NEED HELP PLEASE!
Answer:
Option A is correct statement...
The atoms and molecules of both the liquid water and the table are moving...
is correct...
Explanation:
no comments...
calculate capacitance if Q=7mc and delta V=12V
Answer:
Capacitance = 0.00058 Farads
Explanation:
Given the following data;
Charge, Q = 7mC to Coulombs = 7/1000 = 0.007C
Velocity = 12V
To find the capacitance;
Capacitance = charge/potential difference
Substituting into the equation, we have;
Capacitance = 0.007/12
Capacitance = 0.00058 Farads
A rock is thrown with a force of 500 N and an acceleration is 75 m/s^2. What is its mass?
A. 575 kg
B. 3.8 x 104 kg
C. 0.15 kg
D. 6.7 kg
Answer:
We conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.
Hence, option D is correct.
Explanation:
Given
Force F = 500 NAcceleration a = 75 m/s²To determine
Mass m = ?
Important Tip:
The mass of a rock can be found using the formula F = ma
Using the formula
[tex]F = ma[/tex]
where
F is the force (N) m is the mass (kg) a is the acceleration (m/s²)now substituting F = 500, and a = 75 m/s² in the formula
[tex]F = ma[/tex]
[tex]500 = m(75)[/tex]
switch sides
[tex]m\left(75\right)=500[/tex]
Divide both sides by 75
[tex]\frac{m\cdot \:75}{75}=\frac{500}{75}[/tex]
simplify
[tex]m=\frac{20}{3}[/tex]
[tex]m=6.7[/tex] kg
Therefore, we conclude that the mass of a rock with a force of 500 N and an acceleration of 75 m/s² is 6.7 kg.
Hence, option D is correct.
What part of the brain is most affected with overuse of cell phones, video games, etc.
simple answer .... all of it
Choose all the answers that apply.
There are no cures for what diseases?
ALS
Parkinson's disease
diabetes
Alzheimer's disease
pls help asap
There is no cure for any of those. However you can contain the symptoms with medications
Answer:
All of them except diabetes
Explanation:
A man who weights 900 N stands on a platform scale in a elevator the elevator has made 4000 kg the reading on the scale is 700 N
Answer:
a = -2.17 m / s²
Explanation:
In this problem you must ask for the acceleration of the elevator.
Let's use Newton's second law
F-W = ma
a =[tex]\frac{F}{m} - g[/tex] F / m-g
the weight of the body is 900 N and the force is the reading of the scale, let's find the mass
w = mg
m = w / g
m = 900 / 9.8
m = 91.84 kg
let's calculate
a = 700 / 91.84 - 9.8
a = -2.17 m / s²
The negative sign indicates that the elevator is going down
Study the three loops shown below. For each loop, state which of the bulbs will light when the
!!!!PLZ HELP!!!!!
connections are made.
2.
A) bulb A
B) bulb B
C) both bulbs
D) neither bulb
A) bulb A
B) bulb B
C) both bulbs
D) neither bulb
I
PLEASE HURRY!!!
How much time would it take for the sound of thunder to travel at an average speed of 330 meters per second a distance of 8000
For any object in motion, distance is always _________ displacement
Answer:
for any object in motion , distance is always greater than displacement
For any object in motion, distance is always greater or equal to the displacement but it can never be less than the displacement because displacement is the shortest distance measured between the initial and the final position.
What is displacement?An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard.
Displacement describes this shift in location.
Distance is always higher or equal to displacement for any item in motion, but it can never be less because displacement is the shortest distance between the beginning and end positions.
Learn more about displacement here,
https://brainly.com/question/10919017
#SPJ2
Total distance does not take into account the direction of the object, but displacement always includes direction.
Question 1 options:
True
False
A geologist sees a fault along which blocks of rock in the footwall have moved higher relative to blocks of rock in the hanging wall. What type of fault is this? Explain how you know.
Answer: Normal fault
Explanation:
The type of fault that is explained above is a normal fault. We should note that normal faults typically takes place in a divergent boundary in a scenario where the crusts may have been pulled apart.
Since the crust is pulled apart in this case, it leads to the downward movement of the hanging wall which leads to the football being above the hanging wall.