How does electric force affect an atom?

svlad2 [7]

Answer:

Gravity always attracts. Magnetism either attracts or repel. Gravity reacts to mass or space. Magnetism reacts to motion

4 0

3 years ago

Read 2 more answers

A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours. What is

Andreas93 [3]

Answer:

51 mph

Explanation:

Given: A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours.

Formula: $Speed=\dfrac{Distance}{Time}$

Let speed of aircraft be x mph and speed of wind y mph

Aircraft along wind:

Actual speed of aircraft = x + y

Time taken = 3 hours

Distance = 612 miles

$\therefore x+y=\dfrac{612}{3}$

$x+y=204----------(1)$

Aircraft against wind:

Actual speed of aircraft = x - y

Time taken = 6 hours

Distance = 612 miles

$\therefore x-y=\dfrac{612}{6}$

$x-y=102----------(2)$

By solving equation (1) and equation (2) and we get

x = 153 mph

y = 51 mph

Hence, The speed of wind will be 51 mph

6 0

3 years ago

Jessie and Jaime complete a 5.0 km race. Each has a mass of 68 kg. Jessie runs the race at 15 km/h; Jaime walks it at 5 km/h. Ho

Leto [7]

The total metabolic energy used by each to complete the course is determined as 656.91 J.

<h3>Kinetic energy of Jessie and Jaime</h3>

The kinetic energy of Jessie and Jaime is calculated as follows;

K.E = ¹/₂mv²

where;

m is mass of Jaime
v is speed

15 km/h = 4.17 m/s

5 km/h = 1.39 m/s

K.E = ¹/₂(68)(4.17)² + ¹/₂(68)(1.39)²

K.E = 656.91 J

Thus, the total metabolic energy used by each to complete the course is determined as 656.91 J.

Learn more about kinetic energy here: brainly.com/question/25959744

5 0

2 years ago

The magnitude of the frictional force along the plane is most nearly

Svetach [21]

Answer:

F = N*μ or F =m*g*μ

Explanation:

The friction force is defined as the product of the normal force by the corresponding friction factor.

When a body is in equilibrium over a horizontal plane its normal force value shall be equal to:

$N = m*g\\where:\\m=mass [kg]\\g=gravity [m/s^2]\\N= normal force [N]$

if we simplify this formula more for a balanced body on a horizontal plane, we will have.

$F=m*g*u$

3 0

3 years ago

Electrical wires suspended between two towers form a catenary (see figure) modelled by the equation shown below, where x and y a

RideAnS [48]

Given that the arc length is:
s = ∫ √[1² + (dy/dx)²] dx

So arc length between the two points is then: 
s = 2*20sinh(x/20)
= 40sinh(x/20) 

The straight distance between the two points is : d = 2x 
So, x = d/2.
= 40/2
= 20 m 

Plug this into the arc length equation to get:
s = 40sinh[20/20)]
=40* ½ (e - 1/e) 
 = 47 m

8 0

3 years ago