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
nadya68 [22]
3 years ago
15

A rubber ball moving at a speed of 5 m/s hit a flat wall and returned to the thrower at 5 m/s. Which statement

Physics
1 answer:
Step2247 [10]3 years ago
4 0

Answer:

d. Its magnitude and its direction both remained the same.

Explanation:

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

The law of conservation of momentum states that the total linear momentum of any closed system would always remain constant with respect to time.

This ultimately implies that, the law of conservation of momentum states that if objects exert forces only on each other, their total momentum is conserved.

In this scenario, a rubber ball moving at a speed of 5 m/s hit a flat wall and returned to the thrower at 5 m/s. Thus, the statement which correctly describes the momentum of the rubber ball is that its magnitude and its direction both remained the same because its velocity didn't change while returning to the thrower.

You might be interested in
WHAT IS THE NET FORCE REQUIRED TO GIVE AN AUTOMBILE OF MASS 1600KG AN ACCELERATION OF 4.5M/S2?
Fed [463]

Answer:

The required net force has a magnitude of  7200 N

Explanation:

Use Newton's 2nd Law to obtain the answer:

F_{net}= m\,*\,a\\F_{net}=1600 \,*\,4.5 \,= 7200\,\,N

4 0
4 years ago
A straight wire is aligned east-west in a region where Earth’s magnetic field has magnitude 0.0780 mT and direction 67.1° below
Sergio [31]

Explanation:

It is given that,

Earth's magnetic field, B=0.078\ mT=0.078\times 10^{-3}\ T

Direction of magnetic field, 67.1 degrees below the horizontal, with the horizontal component directed due north.

The magnetic force on the wire per unit length of wire, \dfrac{F}{L}=0.0300\ N/m

(a) The given scenario is shown in the attached figure as :

Using the right hand rule to find the direction of magnetic force on the wire. By using this rule, we get the magnetic force acting on the wire is in upward direction.

(b) Let I is the current flowing in the wire. The magnetic force is given by the following formula as:

F=ILB

I=\dfrac{F}{LB}

I=\dfrac{0.0300}{0.078\times 10^{-3}}

I = 384.61 A

Hence, this is the required solution.

7 0
3 years ago
Models that explain the formation of the solar system through a series of gradual steps are considered evolutionary theories. Wh
lora16 [44]

Answer:

Catastrophic theories

Explanation:

The theory of catastrophe is a collection of methods used to analyze and describe the ways in which a system can experience sudden significant behavioral changes when one or more of the variables that govern it are continuously modified.

Georges Louis de Buffon suggested in 1745 the first destructive theory — that a comet pulled material from the Sun to form the planets.

Therefore the answer is -

Catastrophic theories

4 0
3 years ago
Puck A, of inertia mm, is attached to one end of a string of length ℓℓ , and the other end of the string is attached to a pivot
algol13

Answer:

L_{B} / L_{A} = \frac{5mvl}{mvl}= 5

Explanation:

Find the given attachment

8 0
3 years ago
A wave with a high frequency generally has a _____.
il63 [147K]
High frequency = D, short wavelength
4 0
3 years ago
Other questions:
  • 2. the energy of the pendulum as it swings up
    6·1 answer
  • Can someone help me with this question?¿
    12·1 answer
  • The election of 2008 had a record-breaking number of voters. It had the highest percentage of eligible voters voting in more tha
    8·1 answer
  • A Red Rider bb gun uses the energy in a compressed spring to provide the kinetic energy for propelling a small pellet of mass 0.
    5·1 answer
  • Which of the following equations are balanced correctly?
    14·1 answer
  • 1. Do you feel Doc's habits and routine have led to his success? Explain
    11·1 answer
  • A wheel rotates through an angle of 15.6 rad as it slows down uniformly from 22.0 rad/s to 13.5 rad/s. What is the magnitude of
    13·1 answer
  • Fast need answers <br>Find the amount of force if the body has pressure of 178 Pa on 18 mm²​
    5·1 answer
  • Imagine that you are conducting an investigation to determine if certain soil amendments, like nitrogen and potassium, affect th
    5·1 answer
  • Avogadro‘s number was calculated by determining The number of atoms in
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!