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
Bumek [7]
2 years ago
5

Can an object be moving downward and have an upward acceleration

Physics
2 answers:
bazaltina [42]2 years ago
7 0

Explanation:

no because acceleration is scalar (no direction).

dusya [7]2 years ago
5 0

Answer: no

Explanation:

because the object is moving downwards so it will be  called decceleration . which is the opposite of acceleration .

You might be interested in
Dr. Martin Luther King, Jr., used which method to draw attention to the civil rights movement?
lubasha [3.4K]
It is c. Hoped this helped. ~Bob Ross
7 0
3 years ago
What will happen to a periodic wave acted upon an external damping force?
OverLord2011 [107]
The wave will decrease in its frequency due to a disturbing force acting upon it.
4 0
3 years ago
Read 2 more answers
Which statement about homeostasis is true?
Debora [2.8K]

Answer: Homeostasis helps to maintain body equilibrium.

Explanation:

Homeostasis is defined as the maintenance of a fairly constant internal environment in an organism. Body fluids such as blood, lymph, and tissue fluids make up the internal environment of the body, hence by the action of the nervous and endocrine system, there levels are maintained at a body equilibrium, by the help of brain, which has overall control of homeostasis while other parts such as kidney, liver, skin, hormones are also involved.

3 0
3 years ago
Consider a river flowing toward a lake at an average velocity of 3 m/s at a rate of 500m3/sat a location 90 m above the lake sur
olga_2 [115]

Answer:

mechanical energy per unit mass is 887.4 J/kg

power generated is 443.7 MW

Explanation:

given data

average velocity = 3 m/s

rate = 500 m³/s

height h = 90 m

to find out

total mechanical energy and power generation potential

solution

we know that mechanical energy is sum of potential energy and kinetic energy

so

E = \frac{1}{2}×m×v² + m×g×h    .............1

and energy per mass unit is

E/m =  \frac{1}{2}×v² + g×h

put here value

E/m =  \frac{1}{2}×3² + 9.81×90

E/m = 887.4 J/kg

so mechanical energy per unit mass is 887.4 J/kg

and

power generated is express as

power generated = energy per unit mass ×rate×density

power generated = 887.4× 500× 1000

power generated = 443700000

so power generated is 443.7 MW

3 0
3 years ago
Two astronauts on opposite ends of a spaceship are comparing lunches. One has an apple, the other has an orange. They decide to
lbvjy [14]

Answer:

Explanation:

We shall consider direction towards left as positive Let the required velocity be v and let v makes an angle φ

Applying law of conservation of momentum along direction of original motion

m₁ v₁  - m₂ v₂ = m₂v₃ - m₁ v₄

0.132 x 1.25 - .143 x 1.14 = 1.03 cos43 x .143 - v cos θ

v cos θ = .8

Applying law of conservation of momentum along direction perpendicular to direction of original motion

1.03 sin 43 x .143 = .132 x v sinθ

v sinθ = .76

squaring and adding

v² = .76 ² + .8²

v = 1.1 m /s

Tan θ = .76 / .8

θ = 44°

6 0
3 years ago
Other questions:
  • What is the answer in number 3?
    14·2 answers
  • You have just landed on Planet X. You release a 100-g ball from rest from a height of 10.0 m and measure that it takes 3.40 s to
    6·1 answer
  • It is 6.00 km from your home to the physics lab. as part of your physical fitness program, you could run that distance at 10.0 k
    11·1 answer
  • Two construction cranes are each able to lift a maximum load of 20000 N to a height of 250 m. However, one crane can lift that l
    10·1 answer
  • A hockey puck on a frozen pond with an initial speed of 13.7 m/s stops after sliding a distance of 216.9 m. Calculate the averag
    6·1 answer
  • PLEASE HELP!! WILLING TO GIVE 20 POINTS!
    14·1 answer
  • Explain why it is easy to slip on a floor that is wet please, I need this answered now if anyone can.
    7·2 answers
  • Which facility relies on a no renewable source of energy
    7·1 answer
  • An airplane flies 1,350 miles with a constant speed of 540 mph then it flies another 1,925 miles with a constant speed of 660 mp
    6·1 answer
  • A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later. If the speed of sound is 340 m/
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!