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3 years ago

Link between mass and force of gravity?

2 answers:

8 0

Mass x Force of gravity = Weight

Weight is a force.

On Earth, the force due to gravity is ~9.81 N/Kg. So an object of 100 Kg will have a weight of ~981 N

eduard3 years ago

3 0

Force of gravity is what we call "weight".

It's the product of (mass) x (acceleration due to gravity).

On Earth, acceleration due to gravity is about 9.81 meters per second-squared.
It's different in other places. Example: It's about 1.62 on the Moon.

So the weight of any mass on Earth is (9.81) x (the mass), in Newtons.
The weight of the <u>SAME mass</u> on the Moon is (1.62) x (the mass), in Newtons.

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In an NMR experiment, the RF source oscillates at 34 MHz and magnetic resonance of the hydrogen atoms in the sample being in- ve

choli [55]

Answer:

$B_{int}=-0.015T$

Explanation:

From the question we are told that:

RF source oscillation speed $\sigma= 34 MHz$

The external field $Bext =0.78 T$ .

Pro- ton magnetic moment component $\mu=1.41 X 10-26 J/T$

Generally the equation for magnitude of $B_{int}$ is mathematically given by

$B_{int}=B_{ext}-\frac{h\triangle \sigma}{2 \mu}$

$B_{int}=0.78-\frac{6.6*10^{-34}*34*10^6}{2*1.41*10^{26}}$

$B_{int}=0.78-0.7957$

$B_{int}=-0.015T$

6 0

3 years ago

What must be the diameter of a cylindrical 120-m long metal wire if its resistance is to be 6.0 ω? the resistivity of this metal

Free_Kalibri [48]

The resistance of the cylindrical wire is $R=\frac{\rho l}{A}$ .

Here $R$ is the resistance, $l$ is the length of the wire and $A$ is the area of cross section. Since the wire is cylindrical $A=\frac{\pi d^2}{4}$ . Rearranging the above equation,

$A=\frac{\rho l}{R}\\ \frac{\pi d^2}{4}=\frac{\rho l}{R}\\ d=\sqrt{\frac{4\rho l}{\pi R}}$

Here $l=120, R=6, \rho=1.68(10^{-8})$ .

Substituting numerical values,

$d=\sqrt{\frac{4(1.68)(10^{-8}) (120)}{\pi (6)}}\\ d=0.0006541$

Te diameter of the wire is $0.6541 mm$

7 0

4 years ago

On earth, the solar constant is approximately I = 1367 W/m2 . This corresponds to the power per unit area that a detector at the

d1i1m1o1n [39]

Answer:

Explanation:

for earth -sun system

E = σ T⁴ , E is radiation emitted by sun at temperature T

E = 4π R₁² x solar constant on earth , R₁ is distance between earth and sun.

for marsh -sun system

E = σ T⁴ , E is radiation emitted by sun at temperature T

E = 4π R₂² x solar constant on Mars , R₂ is distance between earth and sun.

from two equation ,

4π R₂² x solar constant on Mars = 4π R₁² x solar constant on earth

solar constant on Mars = (R₁ / R₂ )² x solar constant on earth

6 0

4 years ago

PLEASE help its timed..

mojhsa [17]

Answer:

Explanation:

by increasing the distance through which force is applied, by changing the direction of force applied or by multiplying force of speed of the energy applied

3 0

3 years ago

According to the big bang theory, after the "bang," the universe remained dark until

Pepsi [2]

I believe the answer is <span>300,000 years</span>

3 0

3 years ago