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Advocard [28]
3 years ago
14

The ability to do work is called___________ .

Physics
1 answer:
alexandr1967 [171]3 years ago
6 0

Answer:

The ability to do work is the basic definition of energy. Energy is required to perform any task.

Nuclear fusion reactions happening on sun are the cause of heat, and sun energy.

Proton is the atomic particle with a positive charge just like the electron with the negative charge.

The objects have the kinetic energy during their motion. So the energy of moving object is kinetic energy.

When the objects interact then the friction between their surfaces produces the heat.

The vibration of molecules and the transfer of vibration to the other molecules is because of conduction. Conduction takes place through the vibration of molecules.

Atomic fusion requires extremely high temperatures to occur, that is why it is called thermonuclear.

Explanation:

You might be interested in
Momentum is what combination of variables?
BigorU [14]

p=mv

where p=momentum, m=mass and v=velocity.

Hence momentum is the combination of mass and velocity.

Hope this helps you!

8 0
3 years ago
What is the polarity of each of the earths magnetic poles ? Explain you answer
RideAnS [48]

Answer:

When you put un-like poles together (South facing North) you can feel magnetic attraction. In the Northern Hemisphere, your compass needle points North, but if you think about it for a moment, you will discover that the magnetic pole in the Earth's Northern Hemisphere has to be a South polarity.

3 0
3 years ago
Can someone help me ASAP please
aleksandr82 [10.1K]
The answer is c☺️ hope u have a good day
4 0
3 years ago
At 13:20 on the last Friday in September, 1989 a frantic call was received at the local police station. There had been a serious
astraxan [27]

The kinematics and conservation of momentum relationships allow to find the results for the questions about the measurements and conditions to know the accident conditions are:

     1) The principles of conservation of momentum  and kinematics.

     2)  \theta = tan^{-1} \frac{P_{01}}{p_{02}}

     3) The factors that influence the direction and distance traveled are:

         The initial speed of the vehicles

         The mass of the vehicles

         Pavement conditions: dry, wet, humid, with dirt or loose sand.

1) Kinematics studies the movement of bodies, they look for relationships between position, speed and acceleration.

To analyze the accident, you must answer a question such as what speed the vehicles had before the accident, this is the initial speed of each one and their directions.

When reviewing the kinematics relationships we have.

        v^2 = v_o^2 - 2 a x  

Where the acceleration is given by Newton's second law.

        fr = m a

The friction force is given by the expression.

       fr = μ N  

       fr = μ mg

       

Let's Substitute.

         μ m g = m a

         a = μ g

The friction coefficient is tabulated, for different types of rubber, pavement and wet,  dry conditions, etc.

Therefore, the researcher must measure the braking distance of the vehicles, which can be taken from the mark of the tires on the road and note the condition of the pavement if it is dry or wet and the visibility of the day.

This is the speed of the vehicles just after the impact, using the law of conservation of momentum you can find the speed of the vehicles before the impact

        p_o = p_f \f

         

Where this is a vector expression, which in general is solved with the components of each directional.

Consequently to answer the questions you must use the principles of conservation of momentum  and kinematics.

2) If the vehicles travel at right angles and their masses are similar, the direction after the collision  in each direction.

           tan \theta = \frac{p_{01}}{p_{02}}  

           \theta = tan ^{-1} \frac{p_{01}}{p_{02}}  

3) The factors that influence the direction and distance traveled are:

     The initial speed of the vehicles

     The mass of the vehicles

     Pavement conditions: dry, wet, humid, with dirt or loose sand.

In conclusion, using the kinematics and conservation of momentum relationships, we can find the answers to the question about measurements and conditions to know the accident conditions are:

      1) The principles of conservation of momentum  and kinematics.

     2)  \theta = tan^{-1} \frac{P_{01}}{p_{02}}

     3) The factors that influence the direction and distance traveled are:

         The initial speed of the vehicles

         The mass of the vehicles

         Pavement conditions: dry, wet, humid, with dirt or loose sand.

Learn more about kinematics and momentum here:   brainly.com/question/17304001

5 0
3 years ago
) A steel guitar string with a diameter of 1.00 mm is stretched between supports 80.0 cm apart. The temperature is 0.0°C. (a) Fi
ladessa [460]

Answer: a. Mass per unit length =0.0245kg/m

b. Tension =2.45x10^-8N

C. Tension = 2.45 x10^-8N

Fundamental frequency =200Hz

Explanation:

7 0
4 years ago
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