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
lozanna [386]
3 years ago
7

Plzzzzzz help!!!!!!struggling

Physics
2 answers:
lianna [129]3 years ago
5 0
B
F
And D
We're studying this in class sort of
wel3 years ago
4 0
Metamorphic rock
Coal
Changes in pressure.
the matching will be in comments

You might be interested in
A load of 800 N is lifted using a block and tackle having 5 pulleys. If the applied effort is 200 N, calculate
ser-zykov [4K]

Explanation:

Load=800N

Effort=200N

1. Mechanical Advantage = LOAD/EFFORT

= 800N/200N

= 4

2 Velocity Ratio = no. Of pulleys =5

3. Efficiency = Mechanical advantage / velocity ratio × 100%

= (4/5)×100%

=80%

4. output work= load×load distance

= 800N × 5m

= 4 × 1000J

5. Efficiency = (output work/input work) ×100%

Or, 80% = (4000J/input work) ×100%

Or, 80%/100% = 4000J/inputwork

Or, 4/5 = 4000J/inputwork

Or, input work =4000J × 5/4

Input work = 5×1000J

I hope it helped! ;-)

8 0
3 years ago
Read 2 more answers
A knight moves on a chessboard two squares up, down, left, or right followedby one square in one of the two directions perpendic
Contact [7]

Answer:

Explanation:

Check attachment for solution.

Generally the movement of the knight is L, i.e (2,1), (1,2),(-1,2),(1,-2) etc.

So using Pythagoras theorem

x^2+y^2=1^2+2^2

x^2+y^2=5

Then, the knight will make one movement when the displacement is √5.

So let take a look at other positions

(1,0),(0,1),(-1,0), (0,-1).

Then, for us to have this kind of movement, the knight has to make 3 movements.

When the displacement is 1, then it will make 3 movement.

Let examine other positions

(2,2) or(-2,-2) or (2,-2) or (-2,2)

When the displacement is √8

Then, the movement of the knight is 4.

Let examine other points

(2,0) or (0,2) or (-2,0) or (0,-2)

When the displacement is 2.

The knight make 2 movement

5 0
3 years ago
Which of the following will result in learning violent behavior through observational learning?
vovikov84 [41]
What are the choices?

5 0
3 years ago
What are the letters that stand for the elements
dalvyx [7]

They are the element symbols. Too many to list here, look up a periodic table.

8 0
3 years ago
Read 2 more answers
What is the speed of electron having the same kinetic energy with photon speed 0.006c?
Blababa [14]

Answer:

if gossipy egg overriding successors spatial

5 0
2 years ago
Other questions:
  • A mass of 4.8 kg is dropped from a height of 4.84 meters above a vertical spring anchored at its lower end to the floor. If the
    12·1 answer
  • If only 10 pounds is required to lift a 500-lb block, how much chain must be played out to lift the engine 3.0 inches?
    12·1 answer
  • A 1800-kg Jeep travels along a straight 500-m portion of highway (from A to B) at a constant speed of 10 m/s. At B, the Jeep enc
    12·1 answer
  • A space shuttle travels around the Earth at a constant speed of 28000 kilometers per hour. If it takes 90 minutes to complete on
    8·1 answer
  • 7Which of the following terms describes how glaciers move?
    10·2 answers
  • Helpp!!! Will mark brainlst
    5·1 answer
  • When a piece of iron or mass 78 gm is put in a graduated cylinder containing 100 cm cube of water the reading of the cylinder be
    5·1 answer
  • I NEED HELP ASAP! Compare the spectrum of the unknown gas collected at the bulb company
    10·1 answer
  • A uniform string of length 0.50 m is fixed at both ends. Find the
    15·1 answer
  • When a force is applied to an object the work done is:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!