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
____ [38]
2 years ago
14

Select the best reason for studying the past and its effect on us today based on "The Terror of the Middle Ages." A. to learn wh

at people did on a daily basis B. to enjoy stories about where people used to live O C. to study the causes of diseases and learn to prevent them D. to learn about earlier cultures and lifestyles​
Physics
2 answers:
CaHeK987 [17]2 years ago
8 0

Answer: D

Explanation: Its just s that guy ca get brainlist :D

JulijaS [17]2 years ago
4 0

it is D for sure im good with history

You might be interested in
PLZ HELP ON #22-26!!!! <br><br>Please explain why and how you got your answer.
AleksAgata [21]
22. a - (vf^2 - vi^2)/(2d) 
a = (0 - 23^2)/(170) 
a = -3.1 m/s^2

23. Find the time (t) to reach 33 m/s at 3 m/s^2
33-0/t = 3 
33 = 3t 
t = 11 sec to reach 33 m/s^2
Find the av velocuty: 33+0/2 = 16.5 m/s
Dist = 16.5 * 11 = 181.5 meters to each 33m/s speed. Runway has to be at least this long. 

24. The sprinter starts from rest. The average acceleration is found from: 
(Vf)^2 = (Vi)^2 = 2as ---> a = (Vf)^2 - (Vi)^2/2s = (11.5m/s)^2-0/2(15.0m) = 4.408m/s^2 estimated: 4.41m/s^2
The elapsed time is found by solving
Vf = Vi + at ----> t = vf-vi/a = 11.5m/s-0/4.408m/s^2 = 2.61s

25. Acceleration of car = v-u/t = 0ms^-1-21.0ms^-1/6.00s = -3.50ms^-2
S = v^2 - u^2/2a = (0ms^-1)^2-(21.0ms^-1)^2/2*-3.50ms^-2 = 63.0m 

26. Assuming a constant deceleration of 7.00 m/s^2
final velocity, v = 0m/s 
acceleration, a = -7.00m/s^2
displacement, s - 92m 
Using v^2 = u^2 - 2as 
0^2 - u^2 + 2 (-7.00) (92) 
initial velocity, u = sqrt (1288) = 35.9 m/s 
This is the speed pf the car just bore braking. 

I hope this helps!! 

5 0
3 years ago
In a chemical reaction blank are the substances left over
Zepler [3.9K]

Answer: In a chemical reaction blank are the substances left over

Explanation: The substance left over after a reaction takes place

3 0
2 years ago
Most of the currents identified have a circular shape. This is because as the air and water move between the equator to the pole
Morgarella [4.7K]
I believe it is true . Somebody correct me if I’m wrong!
5 0
2 years ago
A pitcher throws a softball toward home plate. When the ball hits the catcher’s mitt, its horizontal velocity is 32 meters/secon
n200080 [17]
To calculate the force of impact F, first lets calculate the acceleration a of the ball: 

a=v/t where v is the velocity of the ball and t is time

a=32/0.8=40 m/s²

To get the force F we need the Newtons second law:

F=m*a where m is the mass of the ball and a is the acceleration.

F=m*a= 0.2*40 = 8 N

So the impact force is F= 8 N.
5 0
2 years ago
Read 2 more answers
When you measure the boiling point of mercury, you are investigating a ___. a.chemical change b.chemical property c.physical cha
Amanda [17]
D. physical property

the bonds between molecules of mercury are breaking so it's physical and it's not changing the chemical composition of the substance
3 0
3 years ago
Other questions:
  • Which of the following actions is best understood using Einstein's concepts rather than Newtonian physics?
    10·2 answers
  • Do you think the benifits of nuclear power outweigh the potential drawbacks
    11·1 answer
  • 8. Humans need oxygen to break down food in order to provide energy for cells. The oxygen needed for this process is delivered b
    8·2 answers
  • A kilowatt-hour (kW-h) must be a unit of _____.<br> A. mass<br> B. force<br> C. power<br> D. energy
    6·1 answer
  • Which of the following water waves has more energy?
    14·2 answers
  • A uniform sphere (I = 2/5 MR 2 ) rolls down an incline. (a) What must be the incline angle if the linear acceleration of the cen
    14·2 answers
  • Which pair shows the law of reflection?<br> O A and B<br> O A and C<br> O A and D<br> O A and E
    11·1 answer
  • On Earth, the gravitational field strength is 10 N/kg. Calculate E for a 4 kg bowling ball that is being
    12·1 answer
  • In places such as hospital operating rooms or factories for electronic circuit boards, electric sparks must be avoided. A person
    5·1 answer
  • F. If heat could flow to the container, how would the final temperature be affected?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!