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
kykrilka [37]
3 years ago
12

You are standing on a log and a friend is trying to knock

Physics
1 answer:
WINSTONCH [101]3 years ago
3 0

Answer: catching the ball is a better choice.

Explanation:

The collision of 2 objects involves involves large impact force since the force is inversely proportional to the time in which the momentum of the object changes.

Mathematically

F=\frac{\Delta p}{\Delta t}

If we catch the ball we increase the time in which the momentum of the ball is decreased thus the impact force that acts on us is lower as larger time is allowed for the ball to decrease it's momentum.

If we allow the ball to hit us the momentum of the ball changes in a short period of time thus applying a large impact force on our body thus increasing the chances of toppling.

You might be interested in
Referring to the map of the temperature field in the room, where was the warmest field found?
klasskru [66]
Is there supposed to be an image if so there is none
8 0
3 years ago
Read 2 more answers
Plzz help me please ​
olasank [31]
Permanent magnet. An induced magnet would be created when a piece of iron (for example) is in contact with a magnet. Temporary magnets would be something like an electromagnet. Bar magnets are permanently magnetic unless we heat them or hammer them to cause their domains to loose alignment.
6 0
3 years ago
An 80-cm-long steel string with a linear density of 1.0 g/m is under 200 N tension. It is plucked and vibrates at its fundamenta
icang [17]

Answer:

Wavelength of the sound wave that reaches your ear is 1.15 m

Explanation:

The speed of the wave in string is

v=\sqrt{\frac{T}{\mu} }

where T= 200 N is tension in the string , \mu=1.0 g/m is the linear mass density

v=\sqrt{\frac{200}{1\times 10^{-3} }

v=447.2 m/s

Wavelength of the wave in the string is

\lambda =2L=2\times 0.8=1.6 m

The frequency is

f=\frac{v}{\lambda} \\f=\frac{447.2}{1.6}\\f=298.25 Hz

The required wavelength pf the sound wave that reaches the ear is( take velocity of air v=344 m/s)

\lambda=\frac{v_{air}}{f} \\\lambda=\frac{344}{298.25} \\\lambda=1.15 m

8 0
3 years ago
A cyclist is travelling eastwards at a velocity
VMariaS [17]

Answer:

0.02 m/s^2

Explanation:

change in velocity= 4.5m/s - 2.3m/s = 2.2 m/s

acceleration= change in velocity/change in time

acceleration= 2.2/120= 0.0183

= 0.02 (to 2 significant figures)

8 0
3 years ago
Which glass is used in astrology?​ what is its focal length?​
Maksim231197 [3]

Answer:

Convex lens is used in astrology

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements is false? In solids, the particles do not move around or change position; they can only vibrat
    11·2 answers
  • Self-fulfilling prophecy is a primary example of the capability of language to .
    14·1 answer
  • A 25 n object is 3 meters up. How much potential energy does it have?
    10·1 answer
  • Limestone is an example of a chemical sedimentary rock. describe how limestone may form
    9·1 answer
  • If a car speeds up and pushes back on the road, what does the road do to the car?
    15·1 answer
  • You are at a circus and you see a stunt man climb up 29.4 meters into a cannon. He gets fired horizontally out of the cannon wit
    14·1 answer
  • What is the difference between a muscular strength exercise and a muscular endurance exercise?
    5·1 answer
  • An offshore oil platform houses a drill for drilling oil. The drill descends from the platform and enters the ocean. At the bott
    5·2 answers
  • Suppose your class invites a person to give a speech. When you test out the sound system in the gym you find there are so many e
    12·1 answer
  • Why are some starburst galaxies much brighter in infrared than they are in visible light?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!