Calculate the total kinetic energy in btu of an object

Asked by admin @ 28/10/2021 in Physics viewed by 355 People

2001240Determine the specific kinetic energy of a mass whose velocity is 40 m/s, in kJ/kg.

Answered by admin @ 28/10/2021

Answer:

The specific kinetic energy of a mass is 0.8 kJ/kg

Explanation:

Given that,

Velocity = 40 m/s

Specific kinetic energy is the kinetic energy per unit mass.

We need to calculate the specific kinetic energy

Using formula of specific kinetic energy

$K.E=\dfrac{\dfrac{1}{2}mv^2}{m}$

$K.E=\dfrac{v^2}{2}$

Put the value into the formula

$K.E=\dfrac{40^2}{2}$

$K.E=800\ J/kg$

We know that,

1 kJ = 1000 J

or, 1J=0.001 KJ

The specific energy is

$K.E=800\times0.001$

$K.E=0.8\ kJ/kg$

Hence, The specific kinetic energy of a mass is 0.8 kJ/kg

What is the kinetic energy of an object at rest

Asked by admin @ 28/10/2021 in Chemistry viewed by 335 persons

which has more kinetic energy, a 5-kg object moving at 5 m/s 1 m off the ground or a 5-kg object at rest 2 m off the ground?

Derive an expression for kinetic energy of an object

Asked by admin @ 11/08/2021 in Physics viewed by 303 persons

Derive an expression for kinetic energy possessed by an object of mass m moving with velocity v. also state si unit of kinetic energy.

Which is an example of an object with kinetic energy

Asked by admin @ 03/08/2021 in Biology viewed by 362 persons

Which is an example of an object with kinetic energy?

Calculate kinetic energy of electron

Asked by maham237 @ 08/01/2021 in Physics viewed by 288 persons

John and Daniel are playing tug-of-war together. John is exerting 10N force. Daniel is exerting 12N of force. What is their net force?

The kinetic energy of an object of mass m

Asked by admin @ 11/08/2021 in Physics viewed by 295 persons

The kinetic energy of an object of mass, m moving with a velocity of 5 ms 1 is 25 What will be its kinetic energy when its velocity is doubled? …

Total amount of kinetic and potential energy in a system

Asked by admin @ 02/08/2021 in Math viewed by 394 persons

The total amount of kinetic and potential energy in a system is called

How are potential energy kinetic energy and total energy related

Asked by maham237 @ 01/07/2021 in Physics viewed by 302 persons

When do roller coaster cars reach their maximum kinetic energy

Asked by admin @ 26/11/2021 in Physics viewed by 319 persons

A computational model predicts the maximum kinetic energy a roller coaster car can have given its mass, the speed at the highest point of its journey, and the height of …

Calculate in mev the binding energy per nucleon for 12c

Asked by admin @ 26/11/2021 in Physics viewed by 261 persons

What is the minimum energy (in MeV) that is required to break a nucleus of 12C (of mass 11.99671 u) into three nuclei of 4He (of mass 4.00151 u each)?

How to calculate the energy of a photon given wavelength

Asked by admin @ 26/11/2021 in Chemistry viewed by 283 persons

A photon has a wavelength of 705nm calculate the energy of the photon in joules

The kinetic energy of water is at its lowest when

Asked by admin @ 03/11/2021 in Chemistry viewed by 297 persons

Which of these would have the lowest kinetic energy? boiling water ice water refrigerated water water at room temperature

The average kinetic energy of particles of matter is called

Asked by admin @ 02/10/2021 in Physics viewed by 303 persons

The average kinetic energy of particles of matter is called

A ball is projected with kinetic energy e

Asked by admin @ 31/08/2021 in Physics viewed by 317 persons

a ball whose kinetic energy is E, is projected at an angle 45 degrees to the horizontal. Find the kinetic energy of the ball at the highest point of its …

Potential energy possessed by an object due to

Asked by admin @ 29/08/2021 in Physics viewed by 299 persons

B. Give one word for the following. 1. Energy possessed by an object in motion.2. Energy possessed by an object at rest dueto its characteristic position.3. Product …