Transferring the same heat energy to two litres the temperature will rise by 5 degree celsius.
What is temperature and how the temperature rise to be 5 degree celsius?Temperature is the measure of degree of hotness and coldness , to either measure the temperature of room or weather.Here in this question we are applying a flame and heat one litre of water by which the temperature is raised 10 degree celsius.Now we are transferring the same heat energy to two litres , then the temperature rise is asked.The d , density of water =1000 kg/m^3 , using the equation Q= mCdelT , where C = 4.18 KJ.The heat we got is 41.8 KJ, the change is temperature comes out to be 5 degree celsius.To know more about temperature visit:
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How do I solve this?
An Alaskan rescue plane drops a package of emergency rations to a
stranded party of explorers. If the plane is traveling horizontally at 40.0
m/s at a height of 100 m off the ground, where does the package strike
relative to where it is released? (Hint. Use the plane as your origin (x=0,
y=0 and remember to use our 6 step process)
The horizontal distance travelled by the package is 180.8 m.
What is the time of motion of the package?
The time of motion of the package is the time taken for the package to travel from its initial position to the given height.
The time taken for the package to travel through the given distance is calculated as follows;
h = vt + ¹/₂gt²
where;
v is the vertical velocity of the package = 0t is time of motionh is the height through which the package travelledg is acceleration due to gravityh = ¹/₂gt²
2h = gt²
t = 2h/g
t = √(2h/g)
t = 4.52 seconds
The horizontal distance travelled by the package is calculated as follows;
X = Vxt
where;
Vx is the horizontal velocity of the packaget is the time of motionX = (40 m/s) x (4.52 s)
X = 180.8 m
Thus, the distance the package strike relative to where it was released is the horizontal displacement of the package.
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Why does the damage continue after the initial explosion of a large atomicbomb?A. Because a fission reaction has no productsB. Because atomic bombs continue going offC. Because the radiation makes people sickD. Because fusion reactions occur afterward
Large atomic bombs undergo nuclear fission.
Nuclear fission is a chain reaction.
A large amount of radiation is produced.
Thus, the damage continues after the initial explosion because the produced radiation makes people sick.
Option C is correct.
What is the source of the electrical energy in the brain
Answer:
What's the source of energy that powers the human brain?
Mainly sugar, glucose. Glucose is broken down, and in the process it is used to create a gradient of hydrogen ions (Oxygen is also needed, which is why we breath).
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An airplane flies with a constant speed of 760 km/h. How far can it travel in 1 1/2 hours?
Answer: 1140 km
Explanation: You would just add 760 to 760/2 because the airplane travels 760 km in 1 hour (760 km/h means 760 km every 1 hour) and travels 380 km in half an hour. Add those up and you would get 1140 km.
A curious physics student asked her teacher “how quickly is Earth moving through space?” Using the concept of relative velocity, explain why this question does not have an answer.
We know that the relative velocity of earth with respect to the object upon it is zero, but it is non-zero with respect to space.
Whenever we measure velocity, we actually are measuring relative velocity, i.e. the velocity of an object wrt another object. So say, we are saying the velocity of a car is 60 m/s, so it actually means that for us observing the car, it is moving at 60 m/s. Now say you are observing the same car while traveling on a bike at a speed of 30 m/s. Then for you, the speed of the car will now be 60- 30 m/s. This is the concept of relative velocity.
Now, when the student asks how quickly the Earth is moving through space, in order to answer that question, we need to know the relative velocity of the Earth with respect to space. But Space surrounds the earth and all other astronomical bodies, and the limits of space is considered to be infinite so there is no way to determine if it is moving at a certain velocity or not moving at all. Hence, we can't determine the velocity of Earth through space. Hence, the question doesn't have an answer.
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How human memory is complicated and can even sometimes be enhanced?
Human memory is located not in one particular place in the brain but is instead a brain-wide process in which several different areas of the brain
How human memory is complicated sometimes to be enhanced?Human memory is complex, and genetics are still trying to bare the mechanisms that lead to memories being formed. It seems that our human memory is discovered not in one particular place in the brain but is instead a brain-wide process in which several different areas of the brain or memory is a skill, and just like other skills, it can be improved with practice and healthy overall habits. You can start small. For example, a human memory picks a new challenging activity to learn, incorporates a few minutes of exercise into your day, maintains a sleep schedule, and eats a few more green vegetables, fish, and nuts. Procedural human memories (motor skills) are the last ability to be destroyed.
so we can conclude that human memory is located not in one particular place in the brain but is instead a brain-wide process in which several different areas of the brain are.
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How long does it take for a person that is walking at 2 meters per second to travel 1200 meters
The time taken by a person that is walking at 2 meters per second to travel 1200 meters is 600 s
v = d / t
v = Velocity
d = Distance
t = Time
v = 2 m / s
d = 1200 m
t = d / v
t = 1200 / 2
t = 600 s
Velocity is the rate of change of distance with respect to time. It is denoted using V. Its unit is usually m / s.
Therefore, the time taken by thy person is 600 seconds
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The volume of asamplea saof nitrogen gas is 88mLat 25°C and 1.0 atm. Whatis its volume in LatSTP?V₁=88mL T₁=25°CV₂=? T₂=23°2
Given:
V1= 88 ml
P1= 1 atm
T1= 25°C= 298.15 K
STP conditions:
P2= 1atm
T2= 273.15 K
Apply :
[tex]\frac{P1V1}{T1}=\frac{P2V2}{T2}[/tex]Replacing:
[tex]\frac{1(88)}{298.15}=\frac{1(V2)}{273.15}[/tex][tex]88(273.15)=298.15V2[/tex][tex]\frac{88(273.15)}{298.15}=V2[/tex]V2= 80.62 ml
A vertical wire, suspended from one end is stretched by attaching a weight of 20N to the lower end. If the weight extends the wire by Imon. Calculate the energy gained
A vertical wire suspended from one stop is tensioned by attaching a 20N weight to the lower stop. If you have weight, use Imon to stretch the wire. Energy source: `W=(1)/(2) f xx l=(1)/(2) xx 20 xx 10^(-3)` `= 0.01J`.
In physics, power is a quantitative property that is transferred to an identifiable frame or physical device in the form of labor productivity and warmth and tenderness. Electricity is a stored quantity. Energy conservation regulations state that energy can be transformed into form, but cannot be created or destroyed.
Energy exists in various characteristic documents. Examples include light energy, thermal energy, mechanical energy, gravity, electrical energy, sound electricity, chemical power, and nuclear or nuclear energy. Each form can be transformed or transformed into a different bureaucracy. Power is in everything we consume, eat, and use. Power supplies and regulates the body's natural internal abilities. It is used to support cells and tissues in the body, build muscle, and is important for maintaining homeostasis. The harsher the environment, the more energy it takes to maintain.
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A passenger on a boat moving at 2.50 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s (Figure 1). The stairs are angled at 45∘ pointing in the direction of motion as shown. What is the magnitude of the velocity of the passenger relative to the water?
The magnitude of the velocity of the passenger on a boat moving at 2.50 m/s on a still lake relative to the water is 2.95 m / s
Velocity of man = 0.6 m / s
Velocity of ship = 2.5 m / s
Resolving the velocity of man walking at an angle of 45° into its X and Y components.
X-components of velocity of man = 0.6 * cos 45°
X-components of velocity of man = 0.42 m / s
Y-components of velocity of man = 0.6 * sin 45°
Y-components of velocity of man = 0.42 m / s
[tex]V_{x}[/tex] = 0.42 + 2.5
[tex]V_{x}[/tex] = 2.92 m / s
[tex]V_{y}[/tex] = 0.42 m / s
V² = [tex]V_{x}[/tex]² + [tex]V_{y}[/tex]²
V² = 2.92² + 0.42²
V² = 8.53 + 0.18
V = √ 8.71
V = 2.95 m / s
Therefore, the magnitude of the velocity of the passenger relative to the water is 2.95 m / s
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Two students are on a balcony 19.6 m above the street. One student throws a ball vertically down ward at 14.7 m / s At the same instant, the other stu dent throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down . a. What is the difference in the time the balls spend in the air? b . What is the velocity of each ball as it strikes the ground ? c . How far apart are the balls 0.800 s after they are thrown ?
According to the given statement:
a)The difference in the time the balls spend in the air is 3s.
b)Each ball travels at a speed of 24.5 m/s as it lands.
c) The balls 0.800 s after they are thrown far apart are 23.52 m.
What exactly is meant by velocity?The direction of a body or object's movement is defined by its velocity. In its basic form, speed is a scalar quantity. In principle, velocity is a vector quantity. It is the velocity where at distance changes. It is the migration change rate.
Briefing:A )
We have u = 14.7 m/s, acceleration = acceleration due to gravity = 9.8 m/s² , we need to find time when s = 19.6 m.
The first ball:
h = v o × t - g t² / 2
19.6 = 14.7 t + 9.8 t²/2
4.9 t² + 14.7 t - 19.6 = 0
t 1/2 = (-14.7 +/- √216.09+384.16 ) / 9.8
= 9.8/9.8 = 1 s
The second ball:
v = v o - g t
0 = 14.7 - 9.8 t
9.8 t = 14.7
t = 1.5 ( upward )
h = 19.6 + 14.7 - 9.8 × 1.5 = 30.625 m
30.625 = 9.8 × t²/2
t² = 6.25
t = 2.5 s ( downward )
1.5 s + 2.5 s = 4 s
The difference: 4 s - 1 s = 3 s.
B )
We have u = 14.7 m/s, acceleration = acceleration due to gravity = 9.8 m/s² , and t = 1 second.
The first ball:
v = v o + g t
= 14.7 + 9.8 × 1
= 24.5 m/s
The second ball:
v = g * t = 9.8 * 3 = 24.5 m/s
Each ball travels at a speed of 24.5 m/s as it lands.
C ) d 1 = 14.7 * 0.8 + 9.8 * 0.8²/2
= 11.76 + 3.136
= 14.896 m
d 2 = 14.7 * 0.8 - 9.8* 0.8²/2
= 11.76 - 3.136
= 8.624 m
d 1 + d 2 = 14.896 + 8.624 = 23.52 m
The balls 0.800 s after they are thrown far apart are 23.52 m.
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Vector B~ has x, y, and z components of 4.3, 4.5, and 5.1 units, respectively. Calculate the magnitude of B~ .
The magnitude of vector B is determined as 8.05 units.
What is the magnitude of a vector?
The magnitude of a vector is the scalar value of a vector that can be used to describe the unit value of the vector.
The magnitude of a vector can also be described as the resultant of the vector because it is usually the single value of the vector that can be used to represent the vector.
The magnitude of vector B is calculated as follows;
|B| = √(x² + y² + z²)
where;
x is the x - component of the vectory is the y - component of the vectorz is the z - component of the vector|B| = √(4.3² + 4.5² + 5.1²)
|B| = 8.05 units
Thus, we can conclude that vector B with x, y, and z components of 4.3, 4.5, and 5.1 units, respectively, has a magnitude of 8.05 units.
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