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
Dafna11 [192]
2 years ago
7

How much work is done when a porcelain vase with mass of 2.5 kg is lifted up 3 m to a shelf? (HINT- Weight can be used as Force

when the motion is up/down).
Physics
1 answer:
alexdok [17]2 years ago
8 0
Work = force x distance
F= 2.5
D= 3
Work = 2.5 x 3 =7.5
Work = 7.5 J
J=Jules (Jules is the unit uses to calculate work)
You might be interested in
Give an example of a Claim.
Olin [163]

Answer:

Yeah

Explanation:

Look at the pic!!

5 0
3 years ago
A plane travels at a speed of 205mph in still air. Flying with a tailwind, the plane is clocked over a distance of 1000 miles. F
vaieri [72.5K]

While plane is moving under tailwind condition it took time "t"

so here we will have

t = \frac{d}{v_{net}}

here net speed of the plane will be given as

v_{net} = v + v_w

t = \frac{1000}{205 + v_w}

similarly when it moves under the condition of headwind its net speed is given as

v_{net} = v - v_w

now time taken to cover the distance is 2 hours more

t + 2 = \frac{1000}{205 - v_w}

now solving two equations

\frac{1000}{205 + v_w} + 2 = \frac{1000}{205 - v_w}

solving above for v_w we got

v_w = 40.4 mph

6 0
3 years ago
Pls help . Which process produces the energy that is used in photosynthesis?
levacccp [35]

Answer: Nuclear fusion

Explanation:

Have great day!

:)

7 0
3 years ago
Read 2 more answers
A student draws a picture of the products and reactants of a chemical reaction. What, if anything, is wrong with the drawing?
ASHA 777 [7]

The complete question is: A student draws a picture of the products and reactants of a chemical reaction. What, if anything, is wrong with the drawing?

A) The drawing is wrong because there are more chemicals on the products side.

B) The drawing is correct because there are 12 compounds on each side of the arrow.

C) The drawing is wrong because there are different compounds on each side of the arrow.

D) The drawing is correct because there are 12 atoms of each type on each side of the arrow.

Answer:

Option D is correct

Explanation:

In the diagram attached below, it can be seen that there are 12 atoms of element which combine with 12 atoms of another element forming a compound. For the drawing to be correct, there should be 12 atoms of each type of element on both the reactants as well as product side, which is the case. There cannot be imbalance in the number of atoms of different elements on the two sides for a chemical reaction to occur.

Hence, option D is correct.

5 0
3 years ago
When a bus is moving (especially with a high speed) on the road suddenly stops or suddenly changes its direction, the luggage on
Masja [62]

Answer:

First law of motion

Explanation:

I say this because this example shows how an object is staying persistent unless it's compled to change

(not sure)

7 0
3 years ago
Other questions:
  • a boat accelerates at a rate of 6.0m/s down a river. how much time will it take the boat to speed up to 7.0m/s?
    7·1 answer
  • A positive charge is moved from point A to point B along an equipotential surface. How much work is performed or required in mov
    12·1 answer
  • A skateboarder, starting from rest, rolls down a 10.9-m ramp. When she arrives at the bottom of the ramp her speed is 6.74 m/s.
    9·1 answer
  • What does the slope of a position time graph determine?
    9·1 answer
  • What is electrical circuit​
    5·1 answer
  • Wave energy can only be transmitted through a material medium. wave energy can only be transmitted through a material medium.
    5·1 answer
  • 9 write the Greek etymological meaning of Tracheophyta.​
    6·1 answer
  • A “point-light walker” wears lights on different body locations. When viewed in a dark room, an observer would perceive a(n):
    12·1 answer
  • In the chemical equation above, the small number after the O in 1202 represent —
    10·1 answer
  • If you pedal harder so the bike tires push against the ground with
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!