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
dalvyx [7]
3 years ago
9

Can someone help me pls!!

Physics
1 answer:
Katen [24]3 years ago
5 0

Answer:

Decelerating

Explanation:

One arrow is moving it forward but the other arrow is using more force to move it backwards causing it to have a reduction in speed.

You might be interested in
PLEASE HELP!! I WILL MARK BRAINLIST
Stella [2.4K]

sound wave amplitude

3 0
3 years ago
What is kinetic energy?
Lemur [1.5K]

Answer:

A, the energy an object has due to its motion.

Explanation:

Kinetic energy is the energy created by motion.

3 0
2 years ago
Read 2 more answers
A circle is 360°. What percentage of a circle is 90°?
kykrilka [37]

Answer:

360 ÷ 4 = 90

Example

A 360° circle is cut into 4 peaces in the form of + or × . It's one side is called 90°

6 0
3 years ago
When the force at the ends of a bar pushes rather than pulls, the bar experiences?
Mariulka [41]

Answer:

I don't know sorry hopefully I can help with something else tho

4 0
3 years ago
1.A river flowing steadily at a rate of 240 m3/s is considered for hydroelectric power generation. It is determined that a dam c
SIZIF [17.4K]

Answer:

the power that can be generated by the river is 117.6 MW

Explanation:

Given that;

Volume flow rate of river v = 240 m³/s

Height above the lake surface a h = 50 m

Amount of power can be generated from this river water after the dam is filled = ?

Now the collected water in the dam contains potential energy which is used for the power generation,

hence, total mechanical energy is due to potential energy alone.

E_{mech} = m(gh)

first we determine the mass flow rate of the fluid m

m = p×v

where p is density ( 1000 kg/m³

so we substitute

m = 1000kg/m³ × 240 m³/s

m = 240000 kg/s

so we plug in our values into ( E_{mech} = m(gh) kJ/kg )

E_{mech} = 240000 × 9.8 × 50

E_{mech} = 117600000 W

E_{mech} = 117.6 MW

Therefore, the power that can be generated by the river is 117.6 MW

4 0
3 years ago
Other questions:
  • What is the amount of thermal energy needed to raise the temperature of 1 of a substance by ?
    14·1 answer
  • A very strong, but inept, shot putter puts the shot straight up vertically with an initial velocity of 11.0 m/s. how long does h
    10·1 answer
  • Explain how characteristic and traits are related<br>​
    15·1 answer
  • A proton is a subatomic particle that carries a ___________ charge
    10·1 answer
  • An object is thrown straight up with an initial velocity of 10 m/s, and there is an air resistance force causing an acceleration
    14·1 answer
  • If you were able to jog one mile in 10 minutes, how would you progressively increase your
    11·1 answer
  • A runner runs the first 400m of a race in 80s, the second 400m in 70s and the final 800m in 130s. What was her average speed for
    14·1 answer
  • A branch falls from a tree How fast is the branch moving after 0 28 seconds
    9·1 answer
  • In what different ways can be sound heard​
    10·2 answers
  • 10. What are the only types of passes allowed in floor hockey?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!