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
emmainna [20.7K]
3 years ago
12

An object with a mass of 20 kg has a net force of 80 N acting on it. What is the acceleration of the object

Physics
1 answer:
Marat540 [252]3 years ago
3 0

Answer:

a = 4m/s²

Explanation:

a= f/m

a = 80/20

a = 4m/s²

You might be interested in
If the caffeine concentration in a particular brand of soda is 2.97 mg/oz, 2.97 mg/oz, drinking how many cans of soda would be l
Ray Of Light [21]

Explanation:

The given data is as follows.

     Concentration of caffeine = 2.97 mg/oz

     Number of oz in a can = 12 oz

Therefore, the concentration of caffeine in one can is calculated as follows.

                 = (12 \times 2.97) mg

                 = 35.64 mg

                 = 35.64 \times 10^{-3} g

Since, it is given that lethal dose is 10.0 g. Hence, number of cans are calculated as follows.

     No. of cans = \frac{\text{Lethal dose}}{\text{concentration in one can}}

                         = \frac{10 g}{35.64 \times 10^{-3} g}

                         = 280.58

                         = 281 (approx)

Thus, we can conclude that 281 cans of soda would be lethal.

5 0
3 years ago
Somebody please help me
Ksju [112]

The conversion steps listed above in order from start to finish are already in an arranged form from 1-4.

<h3>What is a biosphere?</h3>

A biosphere can be defined as the part of the earth that supports life. These include :

  • aquatic,

  • desert,

  • forest,

  • grassland and

  • tundra.

The flow of energy through the biosphere includes

  • Energy from the sun which is as a result of the nuclear fusion,

  • the energy released is absorbed by plant chlorophyll,

  • Chemical energy is released during respiration.

  • Photosynthesis converts carbon dioxide and water into glucose and oxygen.

Learn more about biosphere here:

brainly.com/question/12467010

#SPJ1

4 0
2 years ago
Stars form from clouds of gas and dust. As a protostar gravitationally contracts within its parent cloud, "conservation of angul
vredina [299]

Answer:

D) True. the protostar rotates more quickly.

Explanation:

If the system is isolated, the angular momentum must be retained.

Initial

        L₀ = I w₀

Final

       L_{f} = I_{f}  w_{f}

      L₀ = L_{f}

      I w₀ = I_{f}w_{f}

     w_{f}  = I /I_{f} w₀

In general, the radius of the cloud decreases significantly to form the star, the moment of inertia must decrease, so the angular velocity must increase

Let's examine the answers

A) False. The opposite happens

B) False. Speed ​​changes

C) False. For this there must be an external force, which does not exist

D) True. You agree with the above

5 0
3 years ago
Why does sand feel hot under your feet on a sunny day at the beach?
zaharov [31]

Answer:

At a sunny day at the beach, the top of the sand is warm. The radiation from the Sun heats up the surface of the sand, but sand has a low thermal conductivity, so this energy stays at the surface of the sand.

6 0
3 years ago
Read 2 more answers
A pen cap floats in a plastic lemonade 3/4 full of water vif you squeeze the bottle the pen cap sinks to the bottom if you then
elena-s [515]

Answer:

The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same

Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases

Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle

Explanation:

4 0
3 years ago
Other questions:
  • Help is requested. Will give brainliest to anyone who answers correctly. 
    14·1 answer
  • every computer consists of physical components and non physical components the non physical component of a computer that underst
    8·1 answer
  • You and two of your friends go to the movies. Each ticket cost $7.50. You share the cost of the popcorn. If each person pays $9.
    8·2 answers
  • What is the total displacement of a dog that runs north 80 meters to chase a ball, returns to its master, and then runs south 20
    14·2 answers
  • Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to thenext handhold. A 9.3kggibbon has
    7·1 answer
  • Why do you think nutrition experts recommend that young people<br> eat foods high in calcium?
    9·1 answer
  • What are the components of the "Earth Radiation Budget?"
    15·1 answer
  • . What is the height in meters of a 5'4" person?​
    8·1 answer
  • Using science terms like force, mass, energy, and inertia, describe how you could get an object to fly a further distance in a c
    7·1 answer
  • The 3kg object in Figure is released from
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!