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3 years ago

According to Coulomb's Law, if the distance between the two electrons were cut in half, the force would be _____.

Physics

1 answer:

Alika [10]3 years ago

8 0

Answer:

Explanation:

The force is quardrupled when the distance between the two electrons are cut.

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An eraser is thrown upward with an initial velocity of 5.0m/s. The eraser’s velocity after 7.0 second is

sladkih [1.3K]

Answer:

-63.6m/s

Explanation:

Given parameters:

Initial velocity = 5m/s

Time of flight = 7s

Unknown:

Velocity of the eraser after 7s = ?

Solution:

To solve this problem, we have to use the right motion equation which is given below;

v = u - gt

v is the final velocity

u is the initial velocity

g is the acceleration due to gravity = 9.8m/s²

t is the time taken;

Now insert the parameters and solve for v;

v = 5 - (9.8 x 7)

v = -63.6m/s

7 0

3 years ago

ASAP please!! <br>The force vectors on an aircraft are as shown. Find the net (resultant force).

ioda

Answer:

The magnitude of the net force is 5430N

Explanation:

I suggest to define the axes as aligned to the axis of the plane. This will require you to decompose only one vector, namely the Weight. We need two components of the W force: one in horizontal direction of the plane, the other perpendicular to it. Through a simple triangle argument you will se that the plane-horizontal component of W is

$W_D=3600 N\cdot\sin 27^\circ=1634N$

acting in the direction of the Drag, and the plane-perpendicular component is:

$W_L=-3600N\cdot\cos 27^\circ=-3208N$

with negative sign since it counteracts the Lift.

So the components of the netforce F are:

$F_h=T-D-W_D=(8000-1000-1634)N=5366N\\F_v=L+W_L=(4100-3208)N=829N$

The magnitude of the net force is:

$|F|=\sqrt{5366^2+829^2}N = 5430N$

6 0

3 years ago

Spring is a time when animals reproduce. What might you see a heron do? Build a nest A. Grow feathers A. Hibernate Migrate

Phantasy [73]

Answer:

A.build a nest

Explanation:

A heron is a bird and it needs a lace to store eggs also i took the test

5 0

3 years ago

Read 2 more answers

1. What is true about elements

yaroslaw [1]

W is the noble gas having atomic number 10 and configuration (2,8)
x, y and z are the s block elements. They have 2,2 and 1 electrons in their outermost shell respectively.
Atomic size decreases across the period and increases down the group. Element z is having more atomic size.

Hope it helps you!!!!

7 0

3 years ago

True or False: The cycle of seasons on the Earth is caused by the tilt of the Earth on its axis toward and away from the Sun.

damaskus [11]

the correct answer is that it is True

8 0

3 years ago