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2 years ago

What are two types of forces exerted by magnets?

Physics

2 answers:

tamaranim1 [39]2 years ago

7 0

Answer:

The other two forces are electrostatic and gravitational

Explanation:

mamaluj [8]2 years ago

4 0

Attraction and repulsion

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Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia

Mademuasel [1]

Answer:

91.5 km

Explanation:

Hi!

If we are to ignore the variation in gravity we can use the formula for teh potential energy near the surface of a planet:

mgh

If the energy of the material ejected from the volcano on Io's surface is the same on earth's surface we have:

$mg_{Io}h_{Io} =mg_{e}h_{e}$

where subindexes Io and e means Jupiter's moon Io, and Earth, respectively

solving for h_e

$h_{e} = h_{Io} \frac{g_{e}}{g_{Io}}$

The acceleration due to the gravity of a planet can be calculated as:

$g = G \frac{m}{R^2}$

Where R and m are the radius and mass of the planet

Therefore:

$h_{e} = h_{Io} (\frac{m_{Io}}{m_e})(\frac{R_e}{R_{Io}})^2$

m_e = 5,972 × 10^24 kg

R_e = 6 371 km

Replacing all given values:

h_e = 500 km *(0.183) = 91.515 990 km

7 0

3 years ago

In order to move a bag of dog food across a 10 meter room you apply20 Newton’s of force how much work was done?

lilavasa [31]

The work done is calculated by multiplying the Force by the distance. So, 10x20 = 200 joules.
I hope this is the answer you are looking for, if not good luck on finding your answer ;D

8 0

3 years ago

if you poured oil and water into a beaker , which liquid would be on top and which would be on the bottom ? How would the densit

Effectus [21]

Answer:

oil floats in water due to the fact that it is less dense. since the water is more dense, it is basically heavier, and heavier items always sink, while lighter items float, the same can be said about liquids. denser liquids will sink while less dense items will float.

7 0

2 years ago

Dr. John Paul Stapp was U.S. Air Force officer whostudied the effects of extreme deceleration on thehuman body. On December 10,

Ira Lisetskai [31]

Answer:

(a) a = 56.4 m/s², his acceleration a, in multiples of gravity g, is 5.76 g

(b) a = -201.43 m/s², his deceleration -a, in multiples of gravity g, is -20.56 g

Explanation:

(a)

When moving upwards, the initial velocity, u = 0 (he accelerated from rest)

When moving upwards, the final velocity, v = 282 m/s

time of motion during this acceleration, t = 5 s

His acceleration is calculated as;

v = u + at

282 = 0 + 5a

a = 282 / 5

a = 56.4 m/s²

Ratio of his acceleration, a to gravity, g = a/g = 56.4 / 9.8 = 5.76

a = 5.76 g

(b)

When moving downwards, the initial velocity, u = 282 m/s

When moving downwards, the final velocity, v = 0 (he was brought to rest)

time of motion during this deceleration, t = 1.4 s

His deceleration is calculated as;

v = u + at

0 = 282 + 1.4a

1.4a = -282

a = -282 / 1.4

a = -201.43 m/s²

Ratio of his deceleration, -a to gravity, g = -a/g = 201.43 / 9.8 = 20.56

a = -20.56 g

3 0

3 years ago

Explain how a bathroom scale is like a biofeedback machine.

amid [387]

Answer:

Explanation:

4 0

2 years ago