Answer:
15,115 J of the total energy is transformed to thermal energy during the game.
Explanation:
From the law of conservation of energy, initial energy of the closed system E = final energy of closed system , E'
E = E'.
Let ME = initial mechanical energy of the system = 16,250 J and U = initial internal energy of the system and ME' = Final mechanical energy of the system = 1,135 J and U' = Final internal energy of the system.
So E = ME + U and E' = ME' + U'
We now find U and U'
Substituting E, ME, E' and ME' into the equations, we have
E = ME + U
17,125 J = 16,250 J + U
U = 17,125 J - 16,250 J
U = 875 J
E' = ME' + U'
17,125 J = 1,135 J + U'
U' = 17,125 J - 1,135 J
U' = 15,990 J.
The change in internal energy is also the change in thermal energy. So,
ΔU = U' - U
ΔU = 15,990 J - 875 J
ΔU = 15,115 J
So 15,115 J of the total energy is transformed to thermal energy during the game.
PLS HELP!!
Which correctly identifies a type of heat transfer shown in the figure above?
C = radiation
B = conduction
A = convection
A = radiation
Answer:
conduction
Explanation:
Metals are good conductors of heat .In the pic the thermal energy is conducted by the cooker and the food gets cooked.Option B is correctAnswer:
[tex] \sf B = conduction[/tex]
Which statements represent convection? Select two options.
A. Black asphalt gets very hot on a sunny day.
B. The movement of air in a hot-air balloon makes it rise into the sky.
C. A dark sand beach can burn the soles of your feet.
D. A spoon gets warm from sitting in a soup pot.
E. A house has high heating bills because the heat ends up in the attic.
F. A house loses heat through an exterior wall.
Answer:
-The movement of air in a hot-air balloon makes it rise into the sky.
-A house has high heating bills because the heat ends up in the attic.
please mark as brainliest
Explanation:
I got the question right
Tim Kylie is one of the world's top chefs. He is best known for his signature dish, triple-dipped chip steak. This masterpiece contains over a pound of beef braised in duck fat. Another of Chef Kylie's more celebrated dishes is the Hamslaughter Supreme. This dish features ham stuffed sausage links presented in a basket made of braided bacon. While carnivores around the world roar for Chef Kylie's creations, it is unlikely that Chef Kylie will dine with them. As a longtime vegan, Chef Kylie would never dream of devouring one of his own dishes. What type of irony? explain your answer
Answer:
situational irony
Explanation:
Based on the scenario being described, this seems to be an example of situational irony. That is because the irony in this scenario is that Tim's most popular and world-renown cooking creations are made of meat but Tim is a vegan and does not consume meat, which all revolves around the situation that Tim is in. Since he can't enjoy the meals with his fans because he does not eat the ingredients in his own creation. Therefore, being specific to the situation that Tim has created.
PLEASE HELP ME FAST!!
"Along with a flood of other people, they headed past the wreckage and up a nearby mountain for safety. There, they
waited the night. The next morning, news reached the group that the tsunamis were over, but everyone was asked to
evacuate while they had the chance."
When reading this paragraph aloud, where should the reader pause?
a. after "There"
b. after "flood"
c. the reader should not pause
d. the reader should pause after "There" and
Answer:
A
Explanation:
Answer:its a
Explanation:
what is mechanical energy
Explanation:
In physical sciences, mechanical energy is the sum of potential energy and kinetic energy. It is the macroscopic energy associated with a system. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, then the mechanical energy is constant. If an object moves in the opposite direction of a conservative net force, the potential energy will increase; and if the speed (not the velocity) of the object changes, the kinetic energy of the object also changes. In all real systems, however, nonconservative forces, such as frictional forces, will be present, but if they are of negligible magnitude, the mechanical energy changes little and its conservation is a useful approximation. In elastic collisions, the kinetic energy is conserved, but in inelastic collisions some mechanical energy may be converted into thermal energy. The equivalence between lost mechanical energy (dissipation) and an increase in temperature was discovered by James Prescott Joule.
What type of potential energy is a 9 volt battery an example of?
Answer:
It is electrical potential energy
Explanation:
because any sort of battery produces energy making it electrical. I hope this helps
Answer:
Chemical Potential Energy
Explanation:
If I am traveling upward in an elevator at a constant velocity, I will appear to weigh more than I normally do.
A. True
B. False
Answer:
A
Explanation:
I know that it's true
A ball falling through the air has--------
: Only kinetic energy
:Both potential energy because it still has a distance to move before it hits the ground and kinetic energy because its moving.
: Only potential energy
: Both kinetic energy because it still has a distance to move before it hits the ground and potential energy because its moving.
Answer:
It’s B
Explanation:
Answer:
Both potential energy because it still has a distance to move before it hits the ground and kinetic energy because its moving.
Explanation:
A car on flat ground accelerates at 0.785 m/s2 when a net force of 1050 N acts on it. How much normal force acts on it?
Answer:
13108.3N
Explanation:
Given parameters:
Acceleration = 0.785m/s²
Net force = 1050N
Unknown:
Normal force acting on car = ?
Solution:
The normal force on this car is the weight of the car;
Normal force = mg
where m is the mass of the car
g is the acceleration due to gravity = 9.8m/s²
Now solve for the mass;
Net force = mass x acceleration
1050 = mass x 0.785
mass = [tex]\frac{1050}{0.785}[/tex] = 1337.6kg
So,
Normal force = 1337.6kg x 9.8m/s² = 13108.3N
13108 works as well for acellus
The speed and direction in which an object is moving is called _______________.
The speed and direction in which an object is moving is called the object's velocity.
A hiker walks 11 km due north from camp and then turns and walks 11 km due east. What is the total distance walked by the hiker?
Answer:
22 km
Explanation:
11km + 11km= 22km
The equation Upper E equals StartFraction 1 Over 2 pi epsilon Subscript 0 EndFraction StartFraction q d Over z Superscript 3 EndFraction is approximation of the magnitude of the electric field of an electric dipole, at points along the dipole axis. Consider a point P on that axis at distance z = 23.00d from the dipole center (d is the separation distance between the particles of the dipole). Let Eappr be the magnitude of the field at point P as approximated by the equations below. Let Eact be the actual magnitude. What is the ratio Eappr /Eact?
Answer:
E_aprox = 1.003 E_real
Explanation:
In this exercise we are given the expression for the electric field of a dipole in the axis direction of the dipole
E_real = k 2q d / √(z² + d²)³
I think your equation has some errors.
In this case they indicate that d is the separation of the charges of the dipole
in the case of z »d this equations approximates
E_aprox = k 2q d/ z³
calculate the value for the two cases
E_real = k2q d / √[ ((23d)² + d²)³]
E_real = k2q d / d³ 12201
E_real = k2q 1/12201 d²
E_aprox = k2q d / (23.00d)³
E_aprox = k2q 1/12167 d²
the error between these quantities is
E_aprox / E_real = 12201 d² / 12167 d²
E_aprox / E_real = 1.003
E_aprox = 1.003 E_real
The bar chart shows the percentage of adults in the U.S. living with certain heart disease risk factors. Which conclusion can be drawn from the chart?
A.
About 30% of adults are living with obesity, high blood pressure, or both.
B.
Diabetes is the leading cause of heart disease among adults who have high cholesterol.
C.
Over 50% of the reporting adults are living with risk factors that can be controlled through diet and exercise.
D.
If an adult leads an inactive lifestyle, he has a 38% chance of getting heart disease.
Answer : Option C) Over 50% of the reporting adults are living with risk factors that can be controlled through diet and exercise.
Explanation : Assuming that the chart is as per the attachment in the answer. The answer will be more than 50 percent of the adults are living with the risk factors and it can be easily controlled through diet and exercise. It is an alarming signal to notice the health issues amongst the people.
A 15 kilogram mass is traveling with a velocity of 2.7m/s. What is the object's kinetic energy?
Answer:
KE=1/2*m*v^2
KE=1/2*15*2.7^2
KE=54.675 J
Explanation:
an object is traveling with a velocity of 3.05 m/s. the object then accelerates at 2.82 m/s^2 over a displacement of 18.4m. what is the final velocity? answer choices - 2.82m/s, 113.1m/s, 54.9m/s, 10.6m/s
Answer:
Final velocity, V = 10.6 m/s
Explanation:
Given the following data;
Initial velocity, U = 3.05m/s
Acceleration, a = 2.82m/s²
Displacement, S = 18.4m
To find the final velocity of the object, we would use the third equation of motion;
[tex] V^{2} = U^{2} + 2aS [/tex]
Where;
V represents the final velocity measured in meter per seconds. U represents the initial velocity measured in meter per seconds. a represents acceleration measured in meters per seconds square. S represents the displacement measured in meters.Substituting the values into the equation, we have;
[tex] V^{2} = 3.05^{2} + 2*2.82*18.4[/tex]
[tex] V^{2} = 9.3025 + 103.776[/tex]
[tex] V^{2} = 113.0785[/tex]
Taking the square root, we have;
V = 10.6 m/s
Therefore, the final velocity of the object is 10.6m/s.
2. Does the emphasis on safety vary for each style of vehicle? In what way?
3. Does the level of safety equipment vary with price of vehicle?
4. What effects will a vehicle’s top speed, power and acceleration likely to have on safety? Is this considered in the advertisements?
WILL MARK BRAINLIEST IF CORRECT
Answer:
Emphasis on public safety can surely reduce the risk for various groups of population
1. Proper education and training must be provided to make them aware of the risks and how they can manage those risks.
2. Proper rules and regulation must be made and strictly followed for example traffic rules so as to avoid accidents.
3. Disaster management teams should to formed to ensure minimal loss of humans and resources during any natural calamity.
4.Eradication of poverty and illiteracy should be priority so as to ensure people focus on more important issues in life rather than involve themselves in trivial things.
Explanation:
How much time will it take a truck to go from 10 m/s to 35 m/s if the truck accelerates at a constant rate of 1.7 m/s2 ?
Answer:
thank u for the happiest year of my life
HELP ASAP physics projectile motion, look at the picture
plz answer this very soon
Answer:
Im gonna say it is answer A:) Hope this helps!
Explanation:
Help. Please! I really need help. It’s timed, and I’m loosing points.
Answer:
I think balanced
Explanation:
because there is a 2 on each arrow
Answer I'm thinking balanced as well
Explanation:
Invasive species often display a wave of advance as they colonize new areas. Mathematical models based on random dispersal and reproduction have demonstrated that the speed with which such waves move is given by the expression 2 Dr , where r is the reproductive rate of individuals and D is a parameter quantifying dispersal. Calculate v'(r), the derivative of the wave speed with respect to the reproductive rate r.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The derivative is [tex]v(r)' = \sqrt{\frac{D}{r} }[/tex]
The correct option is option 1
Explanation:
From the question we are told that
The equation of the speed of the wave of invasion is [tex]v(r) = 2 \sqrt{Dr}[/tex]
=> [tex]v(r) = 2 (Dr)^{\frac{1}{2} }[/tex]
=> [tex]v(r) = 2 * D^{\frac{1}{2} } r^{\frac{1}{2} }[/tex]
Here r is the reproductive rate and the D is the parameter qualifying dispersal
Generally the derivative of this speed is mathematically represented as
[tex]v(r)' = \frac{2}{2} * D^{\frac{1}{2} } * r^{-\frac{1}{2} }[/tex]
=> [tex]v(r)' = \sqrt{\frac{D}{r} }[/tex]
This derivative of the speed represents the rate of change of the invasive speed with respect to the the reproductive rate of an individual
What does the kinetic theory explain?
Heat is due to temperature.
Heat is due to potential energy.
Heat is due to the motion of molecules.
Heat is due to Pascal´s principle.
Your answer would be option 3/C
Heat is due to the motion of molecules.
Acceleration os defined as the rate of change for which characteristic?
A) displacement
B) position
C) velocity
D) time
Answer:
C.) Velocity
Explanation:
I took the test! (im in k12) :)
In the apple activity you completed which of the following is an example of a constant?
The temperature of the apple.
Where the apple is stored.
How the apple is wrapped up.
The type of apple.
Answer:
the type of apple
Explanation:
the type of apple is constant (never changes) but the temperature of the apple is not constant.
Answer:
the type of apple <3
Explanation:
I NEED HELP WITH THIS PHYSICS QUESTION
Answer:
C.
Explanation:
The only reason a space station would spin on it's axis would be to provide an artificial gravity.
Solve for the resultant displacement of the two vectors: A = 2.3 km at 45 degrees B = 4.8 km at 90 degrees
Answer:
The resultant of the vector is 6.63 km
Explanation:
Given;
vector A = 2.3 km 45°
vector B = 4.8 km 90°
The vectors in the x - direction is given by;
Aₓ = 2.3 km Cos 45° = 1.6263 km
Bₓ = 4.8 km Cos 90° = 0
The sum of the vectors in x -direction is given by;
∑X = 1.6263 km + 0 = 1.6263 km
The vectors in the y - direction is given by;
Ay = 2.3 km Sin 45 = 1.6263 km
By = 4.8 km Sin 90° = 4.8 km
The sum of the vectors in y -direction is given by;
∑Y = 1.6263 km + 4.8 km = 6.4263 km
The resultant vector is given by;
R = √(X² + Y²)
R = √[(1.6263)² + (6.4263)²]
R = 6.63 km
Therefore, the resultant of the vector is 6.63 km
The resultant displacement of the two vectors A and B is 6.63 Km and this can be determined by using the given data.
Given :
The two vectors: A = 2.3 km at 45 degrees B = 4.8 km at 90 degrees.
In order to determine the resultant displacement, first, determine the vector in x-direction:
[tex]\rm A_x=2.3cos45=1.6263 \;Km[/tex]
[tex]\rm B_x=4.8cos90=0 \;Km[/tex]
Now, the sum of the vectors is given by:
[tex]\rm \sum X=1.6263+0=1.6263\;Km[/tex]
In order to determine the resultant displacement, first, determine the vector in y-direction:
[tex]\rm A_y=2.3sin45=1.6263 \;Km[/tex]
[tex]\rm B_y=4.8sin90=4.8 \;Km[/tex]
Now, the sum of the vectors is given by:
[tex]\rm \sum Y = 1.6263+4.8=6.4263[/tex]
Now, the resultant vector is given by:
[tex]\rm R = \sqrt{X^2+Y^2}[/tex]
[tex]\rm R=\sqrt{(1.6263)^2+(6.4263)^2}[/tex]
R = 6.63 Km
The resultant displacement of the two vectors A and B is 6.63 Km.
For more information, refer to the link given below:
https://brainly.com/question/16380983
The force of gravity depends on the mass of objects and the distance between them. TRUE OR FALSE?
The force of gravity depends on the mass of objects and the distance between them. This is true statement.
What is force?Physics defines force as the push or pull that modifies the velocity of a massed object.
The ability to change a body's resting or moving condition is referred to as an external force. There is a magnitude and a direction to it.
You may determine the Force using a spring balance. The SI's measure of force is the Newton.
The force of gravity between two objects is directly proportional to the mass of the object and inversely proportional to the square of the distance between them.
Hence, the force of gravity depends on the mass of objects and the distance between them. This is true statement.
Learn more about force here:
https://brainly.com/question/13191643
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A dictator junk gang has all the gas left in the region. They are requiring 2 kg of scrap
metal in exchange for gasoline which they are selling by the liter. Your water rig is
American made with a gallon gas tank and it can drive 30 miles per gallon. How many
liters of gasoline do you need from the junk gang in order to successfully make it the
new destination?
Explanation:
here u go..................................
The volume of the gasoline needed for the gang to successfully make it to the new destination is 340.02 liters.
"Your question is not complete, it seems to be missing to following information";
the new destination of the gang is 2695 miles
The given parameters;
the rate of gasoline consumption, v = 30 miles per gallonthe new destination of the gang = 2695 miles1 gallon = 3.785 liters
The rate of gasoline consumption in miles per liter is calculated as;
[tex]v = \frac{30 \ miles}{gallon } \times \frac{1 \ gallon}{3.785 \ liters} = 7.926 \ miles/liter[/tex]
The volume of the gasoline needed for the gang to successfully make it to the new destination is calculated as;
[tex]volume \ of \ gasoline = \frac{2695 \ miles}{7.926 \ miles/liter} = 340.02 \ liters[/tex]
Thus, the volume of the gasoline needed for the gang to successfully make it to the new destination is 340.02 liters.
Learn more here: https://brainly.com/question/14554216
A constant net force acts on an object. Describe the motion of the object
a) constant acceleration
B) constant speed
C) constant velocity
D) increasing acceleration
Answer:
C)constant velocity
Explanation:
it is probably corrected
A force of 10 pounds acts north and a force of 20 pounds acts west. Find the resultant force
Answer:
oi
Explanation:
