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
Anastaziya [24]
2 years ago
13

What will happen to the force between 2 charged objects if the mass of one of the charges is doubled and the distance between th

em is double?
Physics
1 answer:
bekas [8.4K]2 years ago
7 0

The size of the force varies inversely as the square of the distance between the two charges. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value
You might be interested in
how do the retinas of the eyes of night hunting animals differ from the retinas of animals that hunt during the day time
maksim [4K]
Night hunting animals have more rod cells in their retinas which allows them to see better in the dark.
4 0
3 years ago
Read 2 more answers
A 98-kg fullback, running at 5.0 m/s, attempts to dive directly across the goal line for a touchdown. Just as he reaches the lin
Troyanec [42]

Answer:

(a) Explained below

(b) v_f=0.35\ m/s

(c) Yes

Explanation:

<u>Law Of Conservation Of Linear Momentum</u>

The total linear momentum of a system of particles or objects is conserved unless an external force is acting on the system. The formula for the momentum of a body with mass m and velocity v is P=mv. If there is a system of bodies, then the total linear momentum is the sum of the individual momentums

P=m_1v_1+m_2v_2+...+m_nv_n

When objects collide and join together, the only final mass is the sum of all masses, all traveling at the same speed.

Our m_1=98\ kg fullback runs at v_1=5\ m/s. Two two 68-kg linebackers attempt to stop him, one at -2.0 m/s and the other at -4.0 m/s. The negative value is because the run against the positive direction, taken in the direction of the fullback.

(a) Before the event, there is a total linear momentum, computed as the sum of the momentums of each player as shown

p_1=m_1v_1=(98)(5)=490 Kg\ m/s

p_2=m_2v_2=(68)(-4)=-272 kg\ m/s

p_3=m_3v_3=(68)(-2)=-136 kg\ m/s

p_t=p_1+p_2+p_3=390-272-136=82\ kg\ m/s

After the collision, all the players keep joined in one single mass of.

m_t=98+68+68=234\ kg

They will move at a speed which will be computed below

(b) The final momentum of the system is

p_f=m_tv_f=82\ kg\ m/s

Since the linear momentum is conserved, the final speed v_f is common to all of the players. Let's solve to find it

\displaystyle v_f=\frac{p_f}{m_t}

\displaystyle v_f=\frac{82}{234}

v_f=0.35\ m/s

(c) Since the final speed of the players is positive, it means the touchdown was actually scored, the fullback moved forward across the goal line, the positive reference.

5 0
3 years ago
Chris walks 25 m in the positive direction on a number line, then turns around and walks 15 m in the opposite direction. What is
7nadin3 [17]

Answer:

|d|  =  |(25 - 15)|  \\  |d|  = 10 \: m

3 0
3 years ago
What is the relationship between mass and weight
sergiy2304 [10]
Mass is how heavy is it, weight is the size both are the same
5 0
3 years ago
Read 2 more answers
A visitor to the observation deck of a skyscraper manages to drop a penny over the edge. As the penny falls faster, the force du
pentagon [3]
If a coin is dropped at a relatively low altitude, it's acceleration remains constant. However, if the coin is dropped at a very high altitude, air resistance will have a significant effect. The initial acceleration of the coin will be the greatest. As it falls down, air resistance will counteract the weight of the coin. So, the acceleration will decrease. Although the acceleration decreases, the coin still accelerates, that is why it falls faster. When the air resistance fully counters the weight of the coin, the acceleration will become zero and the coin will fall at a constant speed (terminal velocity). So, the answer should be, The acceleration decreases until it reaches 0. The closest answer is.
a. The acceleration decreases.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement describes a step-down transformer?
    7·2 answers
  • Which feature signifies to astronomers that a distant star is part of a planetary system
    6·2 answers
  • How does Static Electricity happen? Please provide 3 Real Life Examples of Electro Static Electricity.
    5·1 answer
  • At its nearest, Venus comes within about 41 million km of Earth. How distant is it at its farthest?
    8·2 answers
  • A car is traveling 20 meters per second and is brought to rest by applying brakes over a period of 4 seconds. What is the averag
    14·1 answer
  • Which statement best describes how resources are distributed? ​
    6·1 answer
  • How many meters per second is a wave going if it travels a distance of one mile in 0.0012 hours
    8·1 answer
  • Which of the following would typically be used to express speed
    5·1 answer
  • How much kinetic energy does a moving object have if it’s mass is 100 kg and it is moving at a speed of 5 meters per second
    14·1 answer
  • The forces exerted by Earth and a skier become an action-reaction force pair when the skier pushes the ski poles against Earth.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!