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1 year ago

What is the acceleration due to gravity on earth

Physics

2 answers:

Zanzabum1 year ago

5 0

The acceleration due to gravitation on earth is 9.806 m/s^2

Svetradugi [14.3K]1 year ago

4 0

The acceleration due to gravity on earth is 9.8 m / s^2

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What is meant by magnetic field

Darina [25.2K]

Answer:

a. Magnetic field is a location of a vector field around an electric current or magnet formed due to moving electric charges, or magnetic material and has a magnetic effect and exerts a force on other magnetic materials, electric current, and electric charges. The Earth's magnetic field that has the effect of turning a compass needle is an example of a magnetic field

b. The number of turns of the coil, N, in Diagram 1.1 > The number of turns of the coil, N, in Diagram 1.2

The pattern of the iron filings in Diagram 1.1 are closer with less space in between than the pattern of iron filings in Diagram 1.2

The angle of deflection of the ammeter pointer in Diagram 1.1 will be > The angle of deflection of the ammeter pointer in Diagram 1.2, given that the number of turns and current are inversely proportional

c. i. The pattern of the iron filings will have rings which are more closely arranged to each other as the strength of the magnetic field is increased

ii. As the number of turns is increased, the magnetic field is increased

Explanation:

8 0

3 years ago

Examples of impact printers

kaheart [24]

Answer:

Dot matrix printers, Daisy - wheel printers, ball printers.

7 0

3 years ago

ichrome wire of cross-sectional radius 0.791 mm is to be used in winding a heating coil. If the coil must carry a current of 9.2

77julia77 [94]

Answer:

length is 23.228091 m

Explanation:

Given data

radius = 0.791 mm = 0.791 × $10^{-3}$ m

current = 9.25 A

voltage = 1.20 × 10² V

to find out

resistance and length of wire

solution

we know the resistance formula that is

resistance = voltage / current

resistance = 1.20 × 10² /9.25

resistance = 12.97

so resistance is 12.97 ohm

and length of nichrome wire formula is

length = resistance × area / specific resistance of wire

so specific resistance of wire we know = 1.1 × $10^{-6}$

and area = $\pi$ × r² = $\pi$ × (0.0791× $10^{-3}$ )²

area = 1.97 × $10^{-6}$

length = 12.97 × 1.97 × $10^{-6}$ / 1.1 × $10^{-6}$

so length is 23.228091 m

6 0

3 years ago

How is mass related to momentum???

tresset_1 [31]

the formula for (momentum) P = (force) F * (Mass) M

P = FM

if mass = 0 momentum = 0

Hope this helps...

3 0

3 years ago

Read 2 more answers

A large ant is standing on the middle of acircus tightrope that is stretched with tension Ts. The rope has mass per unit length

77julia77 [94]

Answer:

Explanation:

The ant , at some point of time will be standing on the crest of moving wave passing under its feet . At that position the downward acceleration of the ant will be equal to its weight . Hence it will feel weightlessness . So at that time

Acceleration = g

Acceleration at the top position = ω²A where ω is angular velocity and A is amplitude of vibration ( transverse ) of crest .

ω =2 π n where n is frequency of transverse vibration of particles. This angular frequency will be equal to angular frequency of wave travelling on the rope .

frequency of travelling wave

n.= $\frac{1}{\gamma}\sqrt{\frac{T}{\mu} }$

ω =2 π x $\frac{1}{\gamma}\sqrt{\frac{T}{\mu}$

ω² = 4π² x T/γ²μ}

For weightlessness

ω² A = g

A= g x γ²μ / 4π² T

7 0

3 years ago