1answer.
Меню
Ask question
Login
Signup
Ask question
Menu
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
Studentka2010
[4]
3 years ago
6
A 10kg roller coaster does a loop-de-loop and it’s your job to make sure it is safe. The people will fall out if the cart’s spee
d is less than 40m/s when it goes upside down. How high up does the car have to be at point A to make it? Fill in everything else as well.
Location
PE
KE
TE
A
h =
v = 0m/s
B
h = 0m
v =
C
h = 15m
PE=m*g*h
v = 40m/s
KE=0.5*m*v2=
TE=PE+KE
D
h = 0m
v =
E
h = 10m
v =
F
h = 20m
v =
Physics
Answer
Comment
Send
1
answer:
Bingel
[31]
3 years ago
6
0
Answer:
3
Explanation:
Send
You might be interested in
Which one doesn't belong in the group? oxygen, sulfur, selenium,
vlada-n [284]
It’s gonna be Oxygen ....
3
0
3 years ago
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a b
AysviL [449]
B is the answer I think
8
0
3 years ago
I NEED THIS ASAP PLEASE
kolbaska11 [484]
Answer:
wash or dry clean
measuring tape
upper arm girth
tape
height
measuring tape
bistline
waistline
abdomen
hip or seat
Explanation:
please mark brainiest
5
0
2 years ago
Period T= time of one revolution measured in seconds
ser-zykov [4K]
60 RPM equals one hertz (i.e., one revolution per second, or a period of one second). The SI unit for period is the second.
3
0
3 years ago
Help
malfutka [58]
The answer for this is 1200N
6
0
2 years ago
Other questions:
Which amount of power is the smallest?
10
·
2 answers
Determine the specific heat of iron if 6.1 j of energy are needed to warm 1.50 g of iron from 20.0◦c to 29.0◦c?
7
·
1 answer
The luminous star Alnilam in the Orion belt is 1,340 light-years away from Earth. Use the conversion factor 1 parsec = 3.262 lig
9
·
2 answers
What is the magnitude of the electric force between two point charges with Q1 = -1.5 C and Q2 = 0.8 C at a distance of 1 km?
14
·
1 answer
Which way does wind blow
13
·
2 answers
The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light
6
·
1 answer
Someone plz help me with this problem!!!
10
·
1 answer
Are we real?Should we believe in hell and heaven?Should we take life seriously?Why do we feel like we are being pulled down from
14
·
2 answers
Which of the following units would need to be converted before being used for a calculation
5
·
1 answer
PLEASE read this carefully.
10
·
1 answer
×
Add answer
Send
×
Login
E-mail
Password
Remember me
Login
Not registered?
Fast signup
×
Signup
Your nickname
E-mail
Password
Signup
close
Login
Signup
Ask question!