Can any one Explain how energy is conserved in a heat pump.
Answers
Related Questions
How much will the temperature of 72°F be in Celsius and Kelvin?
Entropy measuresa. temperature as volume increases. b. temperature as pressure increases. c. temperature at constant pressure. d. messiness. e. temperature at constant volume.
What force causes a moving object to move in a curved or circular path?
Which one of the following statements about sulfuric acid is correct? A. Sulfuric acid is a known muriatic acid. B. Sulfuric acid is a strong oxidizing agent. C. Sulfuric acid is dangerous to living organisms. D. Sulfuric acid has little effect on metals
fall
remain unchanged
rise
Answers
Answer: Remain unchanged
Explanation:
The boat with water barrel overboard floats in swimming pool when weight of the water displaced by the boat is equal to the buoyant force acting on the boat.
When the water in the barrel is poured overboard, the level of the swimming pool level would remain unchanged as the weight of the boat with the water and barrel would remain unchanged ( as the density and volume of the whole system remains same) and hence, the weight of the water (of the swimming pool) displaced by the boat would remain same.
A boat loaded with a barrel of water floats in a swimming pool. When the water in the barrel is poured overboard, the swimming pool level will remain unchanged.
Answers
Answer: gravity
Explanation: Despite being the weakest force, gravity works across infinite distances, making it responsible for the formation of the universe's structure.
Answers
The correct answer to the question is - Deposition i.e the process by which a gas changes to a solid is called deposition.
EXPLANATION:
There are various thermal processes of state or phase change in which matter in one state is converted into matter in another state.
Deposition is the type of thermodynamic process of state or phase change in which a gaseous substance is directly converted into corresponding solid substance without entering into liquid phase.
During this process, the loss of thermal energy from gas is very fast. Hence, the gas directly enters solid phase without undergoing into liquid phase.
This process is just the opposite process of sublimation where a solid is converted into gas directly. That's why this process is also known as desublimation.
For instance, conversion of water vapor into ice.
-The momentum of player A is greater than that of player B.
-The momentum of player A is less than that of player B.
Answers
Answer:
the momentum of player A is greater than player B.
Therefore, Option 2 is correct.
Step-by-Step explanation:
We have been given the velocity of the players and mass of the players.
Player A:
Velocity is 5m/hr
Mass 210 pounds
Player B:
Velocity is 3m/hr
Mass 190 pounds
We have a formula for momentum:
p is momentum
m is mass
v is velocity
We will find momentums for both the players:
Momentum of player A:
on substituting the values we get:
Momentum of player B:
on substituting the values we get:
Hence, the momentum of player A is greater than player B.
Therefore, Option 2 is correct.
The equation for momentum is p = mv where p is the omentum, m is the mass and v is the velocity. Calculating the momentum for each football player, player A will have a momentum of 1050 lb-mi/h and player B will have a momentum of 570 lb-mi/h. Therefore, momentum of player A is greater than that of player B.
Mechanical
Overheat
Amps
Current
Resistance
Moving Electrons
Circuit Breaker
Fusible Link
Volts
Short Circuit
Voltage
Negative
Voltage Drop
Ohm's Law
Conductor
Fuse
Chemical
Positive
Series Circuit
Parallel Circuit
Insulator Ohms
Open Circuit
Electrons
A ___conductor ___________ allows current to flow easily.
2 An ______insulator ________ does NOT allow current to flow easily.
3 When ___________electrons________ are pushed from one atom to another, electric current is created.
4 A battery is a _________________ source of power. It provides an electrical "pressure".
5 An alternator is a _________________source of power.
6 Voltage is measured in ______________
7 Current is measured in ______________
8 Resistance is measured in ______________
9 Voltage measured across a light bulb is called _____________ ___________
10 A circuit in which the electric current goes to ground or to power (another part of the circuit) is called a ____________ ____________. Usually this produces a lot of heat, blows fuses, and
trips circuit breakers.
11 A circuit in which the electric current cannot complete the path of the circuit, usually from a break
in a wire, is called an _____________ ____________. This causes everything in the circuit to stop working.
12 To protect against too much current flowing through a circuit, the circuit may have a __________, a ______________ ______________, or a ________________ _____________.
Answers
Answer:
See the anwers below
Explanation:
1) Series Circuit
2) Insulator Ohms
3) Moving Electrons
4) Chemical
5) Mechanical
6) Volts
7) Amps
8) Ohms
9) Voltage
10) Short Circuit
11) Open Circuit
12) Circuit Breaker, Fusible Link, or a Fuse
Answers
Final answer:
The work done by nonconservative forces in stopping the 17,000-kilogram airplane landing at a speed of 82 m/s is 57,062,000 Joules. This is calculated by the change in kinetic energy of the airplane when it lands and comes to a stop.
Explanation:
The question refers to the concept of work-energy theorem in Physics, especially involving non-conservative forces. The airplane is initially moving and finally comes to rest. Its initial kinetic energy (KE) gets transferred to work done by nonconservative forces, which in this scenario includes friction due to the aircraft carrier deck and air resistance.
The initial kinetic energy of the plane is calculated using the formula 1/2 * m * v^2 where 'm' is the mass of the plane and 'v' is its speed. So, the initial kinetic energy of the plane is 1/2 * 17,000 kg * (82 m/s)^2 = 57,062,000 Joules. When the plane comes to rest, its final kinetic energy is 0. As per the work-energy theorem, the work done by nonconservative forces is equal to the change in the kinetic energy. Therefore, the work done by nonconservative forces in stopping the plane = Initial KE - Final KE = 57,062,000 Joules - 0 = 57,062,000 Joules.
Learn more about Work-energy theorem here:
#SPJ12