Answer:
ExplaHeat can travel from one place to another in three ways: Conduction, Convection and Radiation. ... Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas.nation:
Physical fitness is related to our ability to carry out daily tasks without being too tired or sore. This statement is TRUE.
<h3>Further explanation
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Good physical fitness means that you can perform daily activities, occupations, and sports. This condition will be achieved through good nutrition, regular exercise, and have enough rest.
The benefit of physical activity and exercise can be immediate as well as long-term. Most importantly, regular activity can improve your quality of life.There are four types of physical fitness:
- Cardiovascular exercise: exercises that increase the work of the heart and lungs, such as walking, jogging, step aerobics, swimming, and biking. Cardio activity improves your heart/lung function and muscle mass.
- Muscular strength exercise: this exercise is to build overall strength and muscle mass.
- Joint flexibility exercise: this exercise to help the ability of the muscle group can be stretched or joint can be moved, for example: bending, lifting and driving. Stretching can reduce the risk of injury.
- Muscular endurance exercise: this exercise to find out how many repetitions of exercises a person can perform, such as push-ups and sit-ups.
<h3>Learn more
</h3>
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Keywords: physical fitness, the definition of physical fitness, physical activity
Answer:
Part a)
Final speed of the corn is 19.05 m/s
Part b)
Kinetic energy of the corn is 3.1 J
Explanation:
Part a)
As we know that the initial position of the corn is
h = 18.5 m
now we also know that it will fall from rest and moving under constant acceleration so we will have
Part b)
Kinetic energy of the corn is given as
Answer:
The magnitude of the force is
Explanation:
Given that,
Electric field intensity
Suppose, The electron when positioned at this location
We need to calculate the magnitude of the force
Using formula of electric field
Where, E = electric field
q = charge of electron
Put the value into the formula
Hence, The magnitude of the force is
Answer:
The internal energy is 73.20 J.
Explanation:
Given that,
Weight of helium = 86 mg
Temperature = 0°C
We need to calculate the internal energy
Using formula of internal energy
Where, = specific heat at constant volume
He is mono atomic.
So, The value of
now, 1 mole of Helium = 4 g helium
n =number of mole of the 86 mg of helium
T = 0°C=273 K
Put the value into the formula
Hence, The internal energy is 73.20 J.