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
marshall27 [118]
3 years ago
8

A truck covers 40.0 m in 7.10 s while uniformly slowing down to a final velocity of 2.05 m/s.

Physics
1 answer:
Alona [7]3 years ago
5 0

Answer:

(A) Original speed= 9.22 m/s

(B) Acceleration= -1.0099 m\s^2

Explanation:

A truck covers 40m in 7.10 secs

The truck slows down at a uniform velocity of 2.05 m/s

(A) The original speed can be calculated as follows

Vo= 2(40)/7.10 - 2.05

= 80/7.10 - 2.05

= 11.2676 - 2.05

= 9.22m/s

(B) The acceleration can be calculated as follows

a= Vf-Vo/t

= 2.05-9.22/7.10

= -7.17/7.10

= -1.0099m/s^2

You might be interested in
Plzzzz help me this is due today. only need help with these two questions and the element is oxygen.
Tresset [83]

Answer: thanks for the point

Explanation:

3 0
3 years ago
Roughly how many stars are in the Milky Way Galaxy?
svetlana [45]

Answer:

there are many stars in the milky way galaky

Explanation:

uncountable stars

7 0
3 years ago
Read 2 more answers
HELP the decay curve of twizzlers sheet!!!!!
Vinvika [58]
Ok so the first thing you need to do is im not gonna help you
7 0
3 years ago
3. Will a plant grow higher with more light?
sleet_krkn [62]

Answer:

When we analyze the sentence we see that this is a hypotype with the growth of plants must behave and it has a prediction included.

Therefore the correct answer is a

Explanation:

In this exercise you are asked to identify the given sentence with a specific part of the scientific method.

Among the parts of the method we have.

* Independent variable . The controlled variable in research

*Dependent variable. The magnitude measured in the experiment

* Control variable. The magnitude that is not controlled

*Experiment. It is the design of the procedure to evaluate the hypothesis

* Hypothesis. It is the assumption with which scientific work begins

* Prediction. It is a consequence of work if the mortgage is correct.

When we analyze the sentence we see that this is a hypotype with the growth of plants must behave and it has a prediction included.

Therefore the correct answer is a

6 0
3 years ago
A 1451 kg car is traveling at 48.0 km/h. How much kinetic energy does it possess? K.E. =
jarptica [38.1K]

           Kinetic energy  =  (1/2) (mass) (speed)²

BUT . . . in order to use this equation just the way it's written,
the speed has to be in meters per second.  So we'll have to
make that conversion.

        KE  =  (1/2) · (1,451 kg) · (48 km/hr)² · (1000 m/km)² · (1 hr/3,600 sec)²

               =  (725.5) · (48 · 1000 · 1 / 3,600)²  (kg) · (km·m·hr / hr·km·sec)²

               =  (725.5) · ( 40/3 )²  ·  ( kg·m² / sec²)

               =    128,978  joules  (rounded)
8 0
3 years ago
Other questions:
  • After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scie
    6·2 answers
  • A 500.0-kilogram cannon is at rest on a frictionless surface. A remote triggering device causes a 5.0-kilogram projectile to be
    13·1 answer
  • A material is said to be ductile if it
    13·1 answer
  • Mechanics is the study of
    7·1 answer
  • Βββββββββββββ<br>fbntdbsv
    13·1 answer
  • I need help with this problem​
    8·1 answer
  • A 1700.0 kg car travels at 14.5 m/s. What is its kinetic energy?
    15·1 answer
  • What is the kinetic energy of a jogger with a mass of 70.8 kg traveling at a speed of 2.4 m/s?
    11·1 answer
  • Stephen schwartz created the musical godspell as well as __________.
    9·1 answer
  • Please help with this i am not good with this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!