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
snow_tiger [21]
2 years ago
11

develop a plan to test the hardness of a sample of feldspar using the following items glass plate copper penny and streak plate

Physics
1 answer:
Artemon [7]2 years ago
6 0
Stroke then 3883 you choke <3333333333
You might be interested in
From a hot air balloon that is at rest at a certain height, a projectile is launched horizontally at 30m / s, how fast will it h
Yuki888 [10]

Answer:

A. 50 m/s

Explanation:

Given in the y direction:

v₀ = 0 m/s

a = 10 m/s²

t = 4 s

Find: v

v = at + v₀

v = (10 m/s²) (4 s) + 0 m/s

v = 40 m/s

In the x direction, the velocity is constant at 30 m/s.

The overall speed is:

v² = (30 m/s)² + (40 m/s)²

v = 50 m/s

3 0
2 years ago
Read 2 more answers
A ball is dropped from the top of the building.it initially moves at 4.0 m/s after 0.5 seconds it moves at 3.8m/s what force is
Ivahew [28]

The correct answer is

Air resistance

In fact, when a ball is in free fall, there are two forces acting on it:

- its weight (force of gravity), acting downward

- the air resistance, acting upward

The effect of the weight is to accelerate the ball, because its direction is the same as the direction of motion of the ball, while the effect of the air resistance is to slow down the ball, because its direction is opposite to that of the motion.

6 0
3 years ago
Please please please please help
aivan3 [116]

Answer:

I am pretty sure its the second one but I could be wrong sorry if I am.

Explanation:

:D

4 0
3 years ago
Read 2 more answers
A baseball diamond is a square (don’t be fooled that it is usually shown rotated by 45°). Each side of the square is 90 feet lon
gayaneshka [121]

A line from second to home creates a right triangle with 45 degree angles.

This makes the diagonal line the side length of the square multiplied by the sqrt(2)

Second to home = 90sqrt(2) = 127.279 feet ( round answer as needed)

8 0
2 years ago
PLEASE HELP While the Earth is revolving around the sun, less direct sunlight is reaching the Northern Hemisphere than the South
jekas [21]

Answer:

Winter

Explanation:

Earth Rotates about an axis

7 0
3 years ago
Other questions:
  • How fast can the 140 a current through a 0.200 h inductor be shut off if the induced emf cannot exceed 80.0 v?
    6·1 answer
  • An agent has just listed a power plant. This is an example of what type of real estate?
    7·1 answer
  • На рычаге размещены два противовеса таким образом, что рычаг находится в состоянии равновесия. Вес расположенного слева противов
    8·1 answer
  • A horizontal force of 675 N is needed to overcome the force of static friction between a level floor and a 300-kg crate. What is
    9·1 answer
  • One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other wor
    10·1 answer
  • A wave with a high amplitude______?
    13·1 answer
  • A plane traveled west for 4.0 hours and covered a distance of 4,400 meters what’s the velocity
    14·1 answer
  • You matter .<br>Until you Multiply yerself by the speed of Light Squared. <br>Then you Energy.<br>​
    5·2 answers
  • 1)<br> How much time does it take to lift a box using 18.0 J of work and 20.89 Watt of power?
    5·1 answer
  • UV light has ______ wavelengths than visible light waves, and its peak energy is at a wavelength of ______.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!