1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klasskru [66]
4 years ago
5

URGENT!!!!

Physics
1 answer:
Nastasia [14]4 years ago
3 0

Answer:

8 cm

Ladder is safer than to walk on it

Explanation:

Streched = Final length - initial length

= 66 - 58

= 8 cm

When your are walking along frozen ice pond your weight is not distributed .It's acting on directly on the ice pond because of contact Area is too small between pond and you. There for According to pressure equation ,

P = F/A

When area is less pressure is less.

If use ladder instead of going by foot. Contact area will be high between pond and ladder. There for pressure is reduced .

You might be interested in
Which description correctly summarizes how an electric motor causes an axle to turn?
alexira [117]

Answer:

B on edge

Explanation:

the piles of the magnetic field generated around the armature are attracted to the opposite poles of the permanent magnent. As the opposite poles align, the commutator reverses the current direction so like poles are aligned and the armature continues to spin

6 0
3 years ago
During the French and Indian war France and Great Britain fought for control of north American territory what impacted the end o
Marta_Voda [28]

Answer:

during American War, George Washington was voted as a military chef. So USA and France decided to be allies (France lost 7years war so they wanted to revenge to Great Britain).

after revolution

In 1778, Bill of Rights was made after that, every Americans got liberty, New laws with president and their own country (USA).

4 0
3 years ago
Two point charges, 3.4 μC and -2.0 μC , are placed 5.0 cm apart on the x axis. Assume that the negative charge is at the origin,
Elza [17]

The electric field is zero at x = -16.45cm

Data;

  • q1 = 3.4 μC
  • q2 = -2.0 μC
  • distance = 5cm

<h3>The Electric Field at point 0</h3>

As the 3μC is larger than -2.0μC  and the charges are opposite sign. The electric field will be zero at the negative axis.

Let the point be at x.

For an electric field to be equal to zero;

k(\frac{q_1}{d_1})^2 + k(\frac{q_2}{d_2})^2 = 0\\\frac{3.4}{(5-x)^2} - \frac{2}{x^2} = 0\\

Let's solve for x using mathematical methods.

\frac{3.4x^2 - 2(5-x)^2}{(5-x)^2x^2}= 0\\ 3.4x^2 - 2(5-x^2) = 0\\3.4x^2 - 50 - 2x^2 + 20x = 0\\1.4x^2 +20x - 50 = 0

Solving the above quadratic equation;

x = -16.45cm

The electric field is zero at x = -16.45cm

Learn more on electric field at a point here;

brainly.com/question/1592046

brainly.com/question/14372859

8 0
3 years ago
A person drives north 8 blocks, then turns west and drives 4 blocks. The driver then turns south and drives 8 blocks. How could
stealth61 [152]

A person would be driving 4 blocks west from the starting point to make the shorter distance while maintaining same displacement.

<u>Explanation:</u>

The measurement of an object’s position change from its point is called displacement. It is usually calculated from starting to the end points and represented by ‘delta s’. In the given scenarios, the person drove in the way that he finals the driving by 4 blocks away from the west.

Means, the persons drive to 8 blocks north and then to 8 blocks south get cancelled. Hence, to make the shorter distance with maintaining same displacement he would be driving 4 blocks west from the starting point.

7 0
3 years ago
7. Which of the following has the most total mechanical energy?
maria [59]

Answer:

An airplane flying

Explanation:

Both a bird and airplane fly, but the airplane is using more mechanical energy to run and power the plane, causing it to fly.

8 0
3 years ago
Other questions:
  • 1. Moving from left to right across a row of the periodic table, which of the following values
    11·2 answers
  • Look at the rock sitting on the hill in the picture above. Gravity should make the rock slide down the hill. What force is actin
    12·2 answers
  • 1a. Assuming 100% efficient energy conversion, how much water stored behind a 50cm high hydroelectric dam would be required to c
    5·1 answer
  • What does a hurricane hunter do
    6·1 answer
  • In a candy factory, the nutty chocolate bars contain 20.0 % pecans by mass. If 4.0 kg of pecans were used for candy last Tuesday
    10·1 answer
  • Earth revolves on its own axis. true false
    7·2 answers
  • a manufacture claims its cleanser works twice as fast as any orther. Could tests be performed to support the claim
    13·2 answers
  • A uniform, solid sphere of radius 3.75 cm and mass 4.00 kg starts with a purely translational speed of 1.75 m/s at the top of an
    6·2 answers
  • What is the acceleration of a car at rest that speeds up to 75m/s over 25 seconds?
    15·1 answer
  • A 5.0 m length of rope, with a mass of 0.52 kg, is pulled taut with a tension of 46 N. Find the speed of waves on the rope
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!