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
scZoUnD [109]
3 years ago
13

An object is dropped from rest from a 70.6 m tower. Air resistance is negligible. After 0.32 seconds, what is magnitude and dire

ction of its acceleration?
Physics
1 answer:
dem82 [27]3 years ago
7 0

Answer:

<em>1,378.9ms²</em>

Explanation:

Given the following

Distance S = 70.6m

Time t = 0.32secs

Initial velocity = 0m/s

Required

Acceleration

Using the equation of motion

S = ut+1/2at²

Substitute

70.6 = 0+1/2a(0.32)²

70.6 = 0.0512a

a = 70.6/0.0512

a = 1,378.9

<em>Hence the acceleration is 1,378.9ms²</em>

You might be interested in
44. A mediados de la década de 1960, la McGill University lanzó sensores metereológicos de gran altitud al dispararlos desde un
Afina-wow [57]

La cinemática permite encontrar la respuesta para la aceleracion del cuerpo en el cañón es:

            a = 1,8 10⁶ m/s²  

 

La cinemática estudia el movimiento de los cuerpos, buscando relaciones entre la posicion, la velocidad y la aceleración.

       v² = v₀² + 2 a x

Donde v y v₀ son la velocidad actual e inicial, respectivamente, a es la aceleracion y x la distancia recorrida.

Indica que la longitud de cañon es x= 18 m la velocidad de  salida es  

            v= 29000 km/h ( \frac{1000m}{1 km} ) ( \frac{1h}{3600s} s) = 8,055,56 m/s.

La velocidad inicial del proyectil es cero.

            a = \frac{v^2}{2x}  

            a = \frac{ 8055.56^2}{2 \ 18}  

            a = 1,8 10⁶ m/s²  

En conclusión usando la cinemática podemos encontrarla respuesta para la aceleracion del cuerpo en el cañón es:

            a = 1,8 10⁶ m/s²  

Aprender mas aquí:  brainly.com/question/19793086

4 0
3 years ago
&gt;<br><br> Which activity will improve your muscle strength
BartSMP [9]

Answer:

  1. Lifting weights
  2. Strength training
  3. Resistance training
  4. Heavy gardening e.g digging , shovelling

Explanation:

8 0
3 years ago
Question 6 of 10
sergejj [24]
The answer is C.89,866. I multiplied 262x343.
3 0
3 years ago
What is an independent variable?
Natali5045456 [20]

Answer:

The answer is A

Explanation:

Independent variables don't have to depend on other factors of the experiment because they're independent

4 0
3 years ago
PLEASE HELP! How much heat is absorbed by 57g iron skillet when its temperature rises from 11°c to 30°C?
Amiraneli [1.4K]

mass times specific heat times tem change.

57 x sh x (30-11)

convert to mks and look up sh iron

7 0
3 years ago
Other questions:
  • A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 571 Hz. The next higher harmonic has
    10·1 answer
  • What does action force mean
    13·2 answers
  • Which of the following is NOT included in an APA citation for a scholarly journal article? Please explain answer.
    13·1 answer
  • What is the shortest distance between two points
    13·1 answer
  • Write down the factors on which moment depends upon ?​
    12·1 answer
  • What is the velocity of a wave that has a frequency of 200 Hz and a<br> wavelength of 0.5m?
    15·1 answer
  • Michael is taking a 500 mile road trip if he is 48% of the way there how many miles has he driven
    6·2 answers
  • If an object had a negative velocity, then it must be traveling<br>North<br>Up<br>East<br>South​
    12·1 answer
  • In which device is chemical energy transformed into electrical energy?
    13·1 answer
  • What is the job of the front center position? a. Set the ball b. Receive the ball c. Serve the ball
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!