Answer:
Explanation:
Given
Overall magnification
One lens magnification is
suppose the magnification of other lens is
A compound lens is made up of series of lenses either of same or of different magnification so
is given by
If lens is replaced by lens then total magnification is
The second lens has a magnification of 6x. If the 5x lens is replaced by a 7x lens, the new total magnification would be 42x.
To find the magnification of the second lens, we need to know that the overall magnification of a system is the product of the individual magnifications of its elements. If the overall magnification is 30x and one lens magnifies 5x, the magnification of the other lens can be calculated by dividing 30x by 5x, giving us a magnification of 6x for the other lens.
If the 5x lens is replaced by a 7x lens, we can calculate the new overall magnification by multiplying the magnification of the two lenses together. So, 6x (from the other unchanged lens) multiplied by 7x gives us an overall magnification of 42x.
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The acceleration of the object is 0.3 m/s² when the force applied on the object.
Physics defines force as the push or pull that modifies the velocity of a massed object. An external force is a force that can change a body's resting or moving condition. There is a magnitude and a direction to it.
You may measure the Force using a spring balance. The unit of force in the SI is the Newton.
According to Newton's second law of motion: force applied on any object is equal to the change in momentum of the object per unit time.
Hence, F = dP/dt
F = m dv/dt = ma
So, force = mass × acceleration
Given force applied on the object = 3 N
Mass of the object = 10 kg
Hence, the acceleration of the object is = Force ÷ mass
= ( 3 ÷ 10) m/s²
= 0.3 m/s²
Learn more about force here:
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b. False
Well-designed weight-training programs do not only target two or three body areas.
The statement that well-designed weight-training programs only target two or three body areas is FALSE.
Well-designed weight-training programs aim to target different muscle groups in the body to promote overall strength and balanced development. These programs often include exercises that involve the chest, back, shoulders, arms, legs, and core.
For example, a weight-training program might include exercises like bench press (chest), rows (back), shoulder press (shoulders), bicep curls (arms), squats (legs), and planks (core).
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Answer:
Explanation:
A foot kicking a ball:
Potential energy is converted to kinetic energy.
A iPhone/Phone being charged:
Electrical energy is converted to chemical energy.
Answer:
A foot kicking ball.
An iPhone being charged
Explanation:
Answer:
In a radio or television, the instrument that converts electrical energy into sound signals or image signals is called a transducer. Transducers are devices that can convert one form of energy into another.
In the context of television, a television camera is an example of a transducer that converts light energy (captured through a lens) into electrical signals representing images or video. These electrical signals can then be processed and transmitted for display on a television screen.
In the context of a radio, a microphone is an example of a transducer that converts sound waves (acoustic energy) into electrical signals. These electrical signals, which represent sound, can then be amplified, modulated, and broadcast over the radio waves for reception by a radio receiver.
So, depending on whether you're referring to a television or a radio, the specific transducer used for converting electrical energy to sound or image signals may vary, but the concept of a transducer applies to both.