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4 years ago

6

How does activity on the Sun affect human technology on Earth and in the rest of the solar system?

1 answer:

ch4aika [34]4 years ago

5 0

Answer:

Solar activity can affect satellite orbits, communication satellites, and the local power grids. It can also impact our spacecraft throughout the solar system, especially orbiters or landers on surfaces without an atmosphere.

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Suppose two children push horizontally, but in exactly opposite directions, on a wagon containing a third child. The first child

koban [17]

Answer:

$0.1 m/s^2$ , in the direction of F2

Explanation:

The magnitude of F2 is larger than that of F1: this means that the wagon will tend to move in the direction of F2. Therefore, the direction of friction will be opposite to the direction of motion, therefore in the direction of F1.

Let's now take the direction of the force exerted by the second child, F2, as positive direction. Then the direction of F1 and of the force of friction ( $F_f$ ) will be negative: so we have

$F_2 = +90.0 N\\F_1 = -75.0 N\\F_f = -12.0 N$

We can write the equation of the forces for the third child+wagon:

$F_1+F_2+F_f = ma$

where

m = 30.0 kg is the combined mass of the child + the wagon

Now we can solve the equation for a, to find the acceleration:

$a=\frac{F_2+F_1+F_f}{m}=\frac{90-75-12}{30}=0.1 m/s^2$

4 0

3 years ago

If the force acting on a body of mass 4 kg is doubled. by how much will the acceleration change?

mr Goodwill [35]

Answer:

The acceleration will also double

Explanation:

F = m*a

a = F/m

plugging in sample numbers to prove

a= 100/4 = 25

a = 200/4 = 50

3 0

3 years ago

POR FAVOR AYUDENME A COMLETARLO

Zigmanuir [339]

Answer:

English please?

Explanation:

8 0

3 years ago

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

Anarel [89]

It has more mass, yes. But it has less of a gravitational pull because it is farther away from the sun than the Earth is

3 0

4 years ago

Read 2 more answers

State one advantage and disadvantage of friction

yuradex [85]

Answer:

Advantage: Helps us to walk without slipping.
Helps machines work

Disadvantage:

We slip on a wet floor.
Causes the smoothness of tires and smoothness of shoes soul.

5 0

3 years ago