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
stellarik [79]
3 years ago
14

What is the acceleration of the object?______ m/s2​

Physics
1 answer:
professor190 [17]3 years ago
8 0

Answer:

Explanation:

this graph show the decrease in velocity  with time

at time t=0 velocity is 40 m/sec

at time t=12sec velocity is decreases from 40 to 10 m/s

so the acceleration of the object at time=12 sec is

a=v/t

a=Δv/t

Δv=v1-v2=40-10=30 m/s

a=30/12=2.5 m/s^2

You might be interested in
on a distant planet a freely falling object has an acceleration of 20 m/s.^2 what speed will a body dropped from rest on his pla
N76 [4]

Answer:

30 m/s

Explanation:

Vf = ?

Vi = 0 m/s

a = 20 m/s^2

t = 1.5 s

Plug those values into the equation: Vf = Vi + at

Vf = 0 + (20)(1.5)

Vf = 30 m/s

4 0
3 years ago
The sleigh is being pulled with a force of 800N and has a mass of 200 Kg.
kiruha [24]
The answer is 4 m/s/s
4 0
3 years ago
Read 2 more answers
(15 points) :^|
mihalych1998 [28]
That is FALSE. The equation to calculate the charges has a distance component that is in the denominator which means that it is inversely proportional (as the distance os greater the force is smaller)
7 0
3 years ago
What was Marie's speed from point A to point B, in miles/minute?
sveticcg [70]

Answer:

40m

Explanation:

40m

6 0
3 years ago
If an atom has 13 protons and is currently electrically neutral, what must happen to give the same atom a positive charge of +2e
Alex777 [14]

The atom must lose 2 electrons

Explanation:

An atom consists of three types of particles:

- Protons, in the nucleus, with positive electric charge +e

- Neutrons, in the nucleus, with no electric charge

- Electrons, orbiting around the nucleus, with negative electric charge -e

As a result, the net electric charge of an atom is given by the number of protons minus the number of electrons:

Q = #p - #e

For a neutral atom, the number of protons and electrons is the same, so the net charge is zero.

In order for an atom to have a positive charge of +2, it means that there must be 2 protons more than the number of electrons. Since atoms exchange electrons (and not protons), this means that the atom must have "lost" 2 electrons.

In this problem, we have an atom with 13 protons: this means that initially it also has 13 electrons. However, later the atom lost 2 electrons, and as a result, the final charge is +2e.

Learn more about atoms:

brainly.com/question/2757829

#LearnwithBrainly

5 0
3 years ago
Other questions:
  • A dumbbell consists of two point-like masses M connected by a massless rod of length 2L. There are no external forces. If the du
    14·1 answer
  • An object of weight W is in freefall close to the surface of Earth. The magnitude of the force that the object exerts on Earth i
    11·2 answers
  • Which of the following statements are evidence that gases do not always behave ideally? Check all that apply.?
    13·2 answers
  • What is the purpose of Physical Science?
    9·1 answer
  • A student is taking an animal science and an astronomy class. In animal sciences, she learns that pumas are called mountain lion
    8·2 answers
  • (96 Points )A bus and a bicycle have a head-on collision. Compare the force of impact between the bus and the bicycle; compare t
    12·1 answer
  • How does you body reproduce
    13·1 answer
  • Radon has a half-life of 56s. After what time will it's activity be reduced to (a) 90% (b) 50% (c) 10% of it's initial value​
    12·1 answer
  • La resistencia de un termómetro de platino es de 6Ω a30°C. Hallar su valor correspondiente a 100°C,sabiendo que el coeficiente d
    14·1 answer
  • HELP PLS MARKING BRANLIST 100 Pts TAKING TEST RN
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!