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
Lana71 [14]
3 years ago
7

The ice skaters partner liftes her up a distance of 1 m work done or not work done

Physics
1 answer:
SOVA2 [1]3 years ago
5 0

Answer:

Work done.

Explanation:

The skater who lifts has to overcome the partner's weight. When lifted up by 1 meter, her potential energy increases by (mass)x(gravitational acceleration)x(1meter), which is the amount of work done.

(This all assumes lifting vertically and no other forces being part of the picture)

You might be interested in
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward force (thr
nordsb [41]

Answer:

W=3456 N

Explanation:

Force 1 F_1=3456

Force 2 F_2=2333N

Acceleration at stage 2 a_2=0.39

Generally the weight of the Craft W is given as

W= upward force(thrust)

Therefore

W=3456 N

5 0
3 years ago
How<br> are<br> earthquakes measured quantitatively
AlexFokin [52]

Answer:Intensity: The severity of earthquake shaking is assessed using a descriptive scale – the Modified Mercalli Intensity Scale. Magnitude: Earthquake size is a quantitative measure of the size of the earthquake at its source. The Richter Magnitude Scale measures the amount of seismic energy released by an earthquake.

Explanation:

4 0
3 years ago
Pls help!!<br> 1 example of a conductor and 1 example of a insulator in your EVERYDAY world.
satela [25.4K]

Answer:

Conductors:Aluminum, copper, car cables

Insulator: rubber, glass

6 0
3 years ago
When developing an experimental design, which action could a scientist take to improve the quality of the result?
worty [1.4K]

Answer: You can Identify any biases about the answer to the scientific question.

Explanation:

5 0
3 years ago
If the range of the projectile is 4.3 m, the time-of-flight is T = 0.829 s, and air resistance is negligible, determine the foll
ankoles [38]

Answer

given,

range of the projectile = 4.3 m

time of flight = T = 0.829 s

v =\dfrac{d}{T}

v =\dfrac{4.3}{0.829}

     v = 5.19 m/s

vertical component of velocity of projectile

v_y = gt'

v_y = 9.8 \times {\dfrac{T}{2}}

v_y = 9.8 \times {\dfrac{0.829}{2}}

v_y =4.06\ m/s

a) Launch angle

 \theta = tan^{-1}(\dfrac{v_y}{v})

 \theta = tan^{-1}(\dfrac{4.06}{5.19})

    θ = 38°

b) initial speed of projectile

  v = \sqrt{v_x^2 + v_y^2}

  v = \sqrt{5.19^2 + 4.06^2}

         v = 6.59 m/s

c) maximum height reached by the projectile

     y_{max}=v_{avg}t'

     y_{max}=\dfrac{1}{2}v_y\dfrac{T}{2}

     y_{max}=\dfrac{1}{2}\times(g\dfrac{T}{2})\times\dfrac{T}{2}

     y_{max}=\dfrac{gT^2}{8}          

7 0
4 years ago
Other questions:
  • A beam of light traveling in air strikes a glass slab at an angle of incidence less than 90°. After entering the glass slab, wha
    5·1 answer
  • You are working at a company that manufactures electrical wire. Gold is the most ductile of all metals: it can be stretched into
    10·1 answer
  • You work for the police. An accident has happened. A farmer was taking his dairy cows for milking across a road. The crossing po
    8·1 answer
  • A wire is stretched right to its breaking point by a 5000 N force. A longer wire made of the same material has the same diameter
    12·1 answer
  • A cheetah runs at a constant velocity of 7 m/s. What is it’s acceleration in m/s/s<br> PLEASE HELP
    9·1 answer
  • what is one example of the use of an infrared sensor? Track shipments, monitor building exit and entry, water flows without turn
    6·2 answers
  • You push your friend, whose mass is 54kg, down a hill so she can go sledding. Her acceleration is 3m/s2. Calculate the amount of
    7·1 answer
  • 3 Alpha Centauri is approximately 4.3 light years
    7·1 answer
  • The correct equation for the x component of a vector named A with an angle measured from the x axis would be which of the follow
    13·1 answer
  • Why is it advantageous to have two Eyes?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!