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
a_sh-v [17]
3 years ago
12

A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground

Physics
2 answers:
pogonyaev3 years ago
7 0
T = 3.5 secs

Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s
Paraphin [41]3 years ago
5 0
V = u + at
u=0(rest) ; a=gravitational acc(g)=10
v = 0 + 10(3.5) = 35m/s


You might be interested in
Rosa uses the formula (vi cos)t to do a calculation. Which value is Rosa most likely trying to find? the vertical acceleration o
blagie [28]
The horizontal displacement of a projectile launched at an angle
4 0
3 years ago
Read 2 more answers
A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy. The energy used to do work
nika2105 [10]

Answer:

480J

Explanation:

Using the formula:

Delta U = Q - W

Q:Heat (J)

Delta U: Changes in internal Energy (J)

W:Work (J)

We can plug in the give numbers, Q and W.

Delta U = 658J - 178J = 480J

6 0
3 years ago
You cheated on a test and you know it was the wrong thing to do according to the psychology theory what helped you know this
Alexandra [31]

Answer:

You cheated on a test, and you know it was the wrong thing to do. According to the psychoanalytic theory, what helped you know this?

The id controlled your biological response and made you sweaty because you were scared of getting caught.

The superego acted as your moral conscience; you just knew that it wasn't right to cheat.

The ego made you feel guilty as a defense mechanism. both B and C

Explanation:

the  answer is both B,C

6 0
3 years ago
How long does it take a glass of salt water to freeze than a glass of fresh water
max2010maxim [7]
A glass of salt water will take a slightly longer time & slightly lower temperature (28 F as compared to 32 F for fresh water)  to freeze than a glass of fresh water. 

Hope this helps!
6 0
3 years ago
How far will an object move in 6 seconds if its average speed during that time is 45 m/s
babunello [35]

Answer:

270 Meters

Explanation:

45×6=270

3 0
3 years ago
Read 2 more answers
Other questions:
  • An ultrasound unit is being used to measure a patient's heartbeat by combining the emitted 2.0 MHz signal with the sound waves r
    10·1 answer
  • Consider an electric dipole, composed of charges +q and -q separated by distance d, that is viewed from a large distance (large
    11·1 answer
  • un tren parte de un punto kilometrico 0 alas 00 horas despues de rrecorrer 49 kilometros en untiempo 0.5 horas se averia porloqu
    5·1 answer
  • If the rifle is stopped by the hunter’s shoulder in a distance of 3.16 cm, what is the magnitude of the average force exerted on
    9·2 answers
  • Give two examples of gravity in the solar system
    11·1 answer
  • A constant 10.0-N horizontal force is applied to a 20.0-kg cart at rest on a level floor. If friction is negligible, what is the
    9·1 answer
  • I NEED HELP ASAP<br>please please please​
    13·2 answers
  • In a tropic level, energy flows from the producer to the primary consumer and to a secondary consumer. True False
    11·1 answer
  • 32. Which sub-atomic particle has a charge of +1?
    8·1 answer
  • A person is using a rope to lower a 8.0-N bucket into a well with a constant speed of 2.0 m/s. What is the magnitude of the forc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!