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
katrin [286]
3 years ago
7

From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The init

ial speed of the pebble is 6.33 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward motion
Physics
1 answer:
Talja [164]3 years ago
8 0

Answer:

\vec{a} = -(9.8~{\rm m/s^2})\^y

Explanation:

Regardless of the initial velocity of the pebble, the acceleration of the pebble is equal to the gravitational acceleration which is equal to 9.8 m/s2 towards downwards direction.

This can be shown by Newton's Second Law. According to the law, the net force applied on an object is equal to mass times acceleration of that object.

During the downward motion, the only force acting on the pebble is the gravitational force, hence its acceleration is equal to gravitational acceleration.

You might be interested in
I love you thanks for help❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️solveeeeee❤️❤️❤️❤️❤️❤️plzzzzz
Kipish [7]

Answer:

okay

Explanation:

6 0
2 years ago
Read 2 more answers
The National Ambient Air Quality Standards (NAAQS) are maximum allowable levels for _____ harmful pollutants. sixteen six sixty
Harman [31]
6

I hope this helps (:

4 0
3 years ago
Read 2 more answers
Una ola oceánica viaja a aproximadamente 1,97 m / s. Esto es 4 millas por hora. La frecuencia de las ondas es de aproximadamente
yKpoI14uk [10]

Answer:

λ = 28,14 m

Explanation:

To find the wavelength of the wave you use the following formula:

v=\lambda f  (1)

v: speed of the wave = 1,97 m/s

λ: wavelength

f: frequency of the wave = 0,07 Hz

You replace the values of v and f in the equation (1) and solve for λ:

\lambda=\frac{v}{f}=\frac{1,97m/s}{0,07Hz}=28,14m

hence, the wavelength of the wave is 28,14 m

5 0
3 years ago
What is the magnitude of your displacement when you follow directions that tell you to walk 100.0m north, then 25.0m East?
atroni [7]

Answer:

Displacement from the starting position is 103.21m

Explanation:

If you draw these directions, it will create the two legs of a triangle.

Using this method, you can visualize why your displacement is what it is.

Using the pythagorean theorem

{a}^{2}  +  {b}^{2}  =  {c}^{2}

Plug in both values

{100m}^{2}  +  {25m}^{2}  =  {c}^{2}

c =  \sqrt{10652}

c = 103.2085

c= 103.21

6 0
3 years ago
What is the maximum value the string tension can have before the can slips? The coefficient of static friction between the can a
Naya [18.7K]

Answer:

T= 38.38 N

Explanation:

Here

mass of can = m = 3 kg

g= 9.8 m/sec2

angle θ = 40°

From figure we see the vertical and horizontal component of tension force T

If the can is to slip - then horizontal component of tension force should become equal to force of friction.

First we find force of friction

Fs= μ R

where

μ = 0.76

R = weight of can = mg = 3 × 9.8 = 29.4 N

Now horizontal component of tension

Tx= T cos 40 = T× 0.7660  N

==>T× 0.7660 = 29.4

==> T= 38.38 N

8 0
3 years ago
Other questions:
  • If the temperature is held constant during this process and the final pressure is 683 torrtorr , what is the volume of the bulb
    15·1 answer
  • A motorcycle has a mass of 2.50×10^2. A constant force is exerted on it for 60.0s. The motorcycles initial velocity is 6.00 m/s
    10·1 answer
  • Four wires are made of the same highly resistive material, cut to the same length, and connected in series. Wire 1 has resistanc
    8·1 answer
  • A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains
    11·1 answer
  • Suppose that a ball decelerates from 8.0 m/s to a stop as it rolls up a hill, losing 10% of its kinetic energy to friction. Dete
    5·1 answer
  • Which of the following is true about the regions of the electromagnetic spectrum?
    5·1 answer
  • Diagram of water waves moving from a shallow water to deep water​
    9·1 answer
  • What should you do if your brakes fail? Hook your shoe under the pedal and see if you can free it. Pull the steering wheel back.
    6·1 answer
  • Two motorcycles travel along a straight road heading due north. At t = 0 motorcycle 1 is at x = 50 m and moves with a constant s
    13·1 answer
  • A vector has a magnitude of 30m at an angle of 225 degrees with respect to the positive x-axis and has a magnitude of 13m.what a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!