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
Klio2033 [76]
2 years ago
5

A friend throws a heavy ball toward you while you are standing on smooth ice. You can either catch the ball or deflect it back t

oward your friend. Which of the following options will maximize your speed right after your interaction with the ball? You should catch the ball. You should deflect the ball back toward your friend at the same speed with which it hit your hand. You should let the ball go past you without touching it. It doesn’t matter—your speed is the same regardless of what you do. You should deflect the ball back toward your friend at half the speed with which it hit your hand.
Physics
1 answer:
baherus [9]2 years ago
6 0

Answer:

Explanation:

My speed after the interaction will depend upon the impulse the ball will make on me . Now impulse can be expressed as follows

Impulse = change in momentum

change in momentum in the ball will be maximum when the ball bounces back with the same velocity which can be shown as follows

change in momentum = mv - ( - mv ) = 2mv

So when ball is bounced back with same velocity , it suffers greatest impulse from my hand . In return ,  it reacts with the same impulse on my hand pushing me with greatest impulse according to third law of motion. this maximizes my speed after the interaction.

You might be interested in
Which best contrasts Newton's and Einstein's ideas?
Len [333]

Answer:

Newton believed that mass tells gravity how much force to exert. Einstein believed that mass tells space-time how to curve.

Explanation:

Isaac Newton believed that bodies on earth had a force of gravity pulling them down as a result of their masses.

Albert Einstein believed that the bodies were not pulled down but were moving around in a circular sphere/manner.

This confirms Newton believing that mass tells gravity how much force to exert and Einstein believing that mass tells space-time how to curve.

6 0
3 years ago
Read 2 more answers
Systems distribute heat energy by the circulation of air.
Ulleksa [173]
That seems like a statement more than a question. Where's the question?
6 0
3 years ago
Read 2 more answers
Can someone help me please? I’ve been trying to solve these questions all day.
qwelly [4]

#16

If we put a resistor in circuit it will slow the speed of current

Let's check ohms law

\\ \rm\Rrightarrow \dfrac{V}{I}=R

  • So if resistance is more current is less

#17

Again use ohms law

\\ \rm\Rrightarrow V=IR

\\ \rm\Rrightarrow V\propto I

  • Voltage must be increased
4 0
2 years ago
What does the scientific method help test in environmental science?
Hatshy [7]

Answer:

The scientific method helps test and arrive at conclusions for a variety of hypotheses that are created when studying environmental science.

Explanation:

What is the scientific method in environmental science?

The scientific method is a method of research with defined steps that include experiments and careful observation. One of the most important aspects of this method is the testing of hypotheses by means of repeatable experiments. A hypothesis is a suggested explanation for an event, which can be tested.

5 0
2 years ago
The closer the particles are together, the ______ sound is able to move.
maksim [4K]

Answer:

Faster

Explanation:

The closer the particles are together, the faster sound is able to move.

Sound travels the slowest through the air because gas particles are more spread apart than liquids or solids.

Sound will travel the fastest through solids because the particles in solids are densely packed together.

4 0
3 years ago
Other questions:
  • A 5.20g bullet moving at 672 m/s strikes a 700g wooden block atrest on a frictionless surface. The bullet emerges, travelingin t
    12·1 answer
  • A disk shaped grindstone of mass 3.0 kg and radius 8 cm is spinning at 600 rpm. After the power is shut off the frictional torqu
    6·1 answer
  • Josh and Jake are both helping to build a brick wall which is 6 meters in height. They each lay 250 bricks, but Josh finishes th
    9·1 answer
  • Which is most likely true about electronegativity?
    7·2 answers
  • Two violinists are trying to play in tune. However, whenever they play their A string at the same time they hear a beat frequenc
    12·1 answer
  • 23.
    15·1 answer
  • If a roller coaster cart needs more Kinetic Energy to reach the top of the track, what are two ways to increase the amount of Ki
    15·1 answer
  • A trombone acts as if it were an
    13·1 answer
  • Define physical quantity​
    10·2 answers
  • 30 km/h is _________m/s?<br> A.)8.3<br> B.)5.6<br> C.)13.9<br> D.)11.1
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!