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
Assoli18 [71]
3 years ago
13

3. A cat walks 0.220km North, then 0. 120 km South in a time of 400 seconds. whats the displacement and average velocity?

Physics
1 answer:
Andru [333]3 years ago
4 0

Answer:

The rate at which velocity changes with respect to a change in time is called. acceleration.

Explanation:

You might be interested in
The mass of a golf ball is 45.9
Tema [17]
The equation for the de Broglie wavelength is: 
<span>λ = (h/mv) √[1-(v²/c²)], </span>
<span>where h is Plank's Constant, m is the rest mass, v is velocity, and c is the velocity of light in vacuum. However, if c>>v (and it is, in this case) then the expression under the radical sign approaches 1, and the equation simplifies to: </span>
<span>λ = h/mv. </span>
<span>Substituting, (remember to convert the mass to kg, since 1 J = 1 kg·m²/s²): </span>
<span>λ = (6.63x10^-34 J·s) / (0.0459 kg) (72.0 m/s) = 2.00x10^-34 m.</span>
8 0
3 years ago
If chris throws a baseball 60 meters in 4 seconds, what is the average speed of the football?
IceJOKER [234]
The average speed of the football is 15 meters per second. Just divide both of the numbers by 4 :)
6 0
3 years ago
The Yerkes Primate Center has existed (or has been in existence) since the 1960s and has a focus in two major areas: Immunology
dybincka [34]

Answer:

Research towards increasing the understanding of progressive illnesses, such as Parkinson’s and Alzheimer’s diseases.

Explanation:

The Yerkes Primate center was established in 1930 by Robert Yerkes, in Orange Park, Florida. But was moved to its present location in Emory University.

The center has its focus on two major area of research, which are  Immunology and Vaccine, and research towards  increasing the understanding of progressive illnesses, such as Parkinson’s and Alzheimer’s diseases.

6 0
3 years ago
A spring of spring constant 25 N/m is hung vertically and a 0.300 kg mass is attached to one end, causing a displacement of the
Mamont248 [21]

Answer:k=1175

Explanation:thank  you for asking

3 0
3 years ago
A person is standing on and facing the front of a stationary skateboard while holding a construction brick. The mass of the pers
jek_recluse [69]

Answer:

0.74 m/s

Explanation:

From the question,

We apply the law of conservation of momentum,

Total momentum before collision = Total momentum after collision.

Since the skateboard, the person and the brick where stationary, therefore, the total momentum before collision is 0

0 = Total momentum after collision

(m+M)V + m'v = 0

Where m = mass of the  skateboard, M = mass of the person, m' = mass of the brick, V = recoil velocity of the person and the skateboard, v =  velocity of the brick

make V the subject of the equation above

V = -m'v/(m+M)................... Equation 1

Given: m = 4.10 kg, M = 68.0 kg, m' = 2.50 kg, v = 21.0 m/s.

Substitute these values into equation 1

V = -(2.5×21)/(68+2.5)

V = 52.50/70.5

V = 0.74 m/s

4 0
3 years ago
Other questions:
  • Please help me with this homework
    10·2 answers
  • If standard household voltage is 120 volts, what is the current through the stove?
    5·1 answer
  • A 0.030-m3 container is initially evacuated. Then, 4.0 g of water is placed in the container, and, after some time, all the wate
    11·1 answer
  • 19.A 20 kg sign is pulled by a horizontal force such that the single rope (originally vertical) holding the sign makes an angle
    13·1 answer
  • From fastest to slowest, rank the speeds of the balls 1 s after being thrown. Rank the speeds of the balls from fastest to slowe
    7·2 answers
  • To what volume will a sample of gas expand if it is heated from 50.0°c and 2.33 l to 500.0°c?
    12·1 answer
  • A ball is dropped from rest from the top of a building. What force is responsible for the downward motion of the ball?
    13·1 answer
  • Who was the first president of the united states​
    12·2 answers
  • A bowling ball moves 18 meters every 2 seconds down the lane at a bowling alley. What is the speed of the bowling ball?
    7·1 answer
  • Two forces F1 and F2 are applied at the same point of an object. F1 has a magnitude of 20 N and is directed at an angle of 120 d
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!