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
Oxana [17]
4 years ago
10

If you want to know how energy will move between two objects, what do you need to know about the objects?

Physics
1 answer:
Inessa [10]4 years ago
8 0
You need to know how much friction that object.
You might be interested in
Un ladrón viaja en un auto a una velocidad excesiva de 30m/s, en dicho momento un policía de tránsito, lo observa y monta en su
tester [92]

Answer:

t = 12 s

Explanation:

To find the time in which the police reaches the thief you write the equation of motion of both thief and police:

The thief has a constant velocity, the position is then given by:

x=vt     (1)

The police has an acceleration, then the position is:

x=v_ot+\frac{1}{2}at^2   (2)

the time in which the police reaches the thief is when their positions are equal, that is, when expression (1) equals expression (2). But before you calculate the acceleration of the police:

a=\frac{v-v_o}{t}\\\\v_o=0m/s\\\\a=\frac{50m/s}{10s}=5\frac{m}{s^2}

you replace this values in (2) and you equal the expression (1) and (2) (with vo = 0):

vt=\frac{1}{2}at^2\\\\\frac{1}{2}at^2-vt=0\\\\(\frac{1}{2}at-v)t=0

one root is t = 0s, but it is omitted because is the momment in which the thief pass in front of the police. The other root is:

\frac{1}{2}at-v=0\\\\t=\frac{2v}{a}=\frac{(2)(30m/s)}{5m/s^2}=12s

hence, the time is 12 s

8 0
4 years ago
A 4 kg billiard ball moving on a horizontal surface has a speed of 16 m/s when it strikes a horizontal coiled spring is brought
ruslelena [56]

Answer:

spring constant of the spring is 1820.44 N/m

Explanation:

given data

ball mass = 4 kg

speed = 16 m/s

distance = 0.75 m

to find out

spring constant of the spring

solution

we know that kinetic energy of ball = energy store in spring as compression

so we can express it as

0.5 × m × v² = 0.5 × k × x²    ....................1

so put here value we get spring constant k

m × v² =  k × x²

4 × 16² =  k × 0.75²

solve it we get

k  =  1820.44 N/m

so spring constant of the spring is 1820.44 N/m

6 0
4 years ago
Read 2 more answers
What is the average speed of a boy who jogs 250 meters in 110 seconds
Ede4ka [16]

2.27 mps repeating.

This is the last question ill ever answer here. Thanks for being the last.

8 0
3 years ago
Read 2 more answers
Which force best represents Fg
kiruha [24]

Answer:

The weight of barbell acting on a weight lifter is 80N.

Explanation:

6 0
3 years ago
Steve has a mass of 78 kg and is standing still on very slippery ice while holding a 2.5 kg can of peas. Steve throws the can to
anzhelika [568]
Answer: 0.28 m/s


Let

M1 = mass of Steve
V1 = velocity of Steve
M2 = mass of can
V2 = velocity of can

Because momentum is a conserved quantity:

P1 - P2 = 0

So

M1*V1 - M2*V2 = 0

78.0kg(V1) - 2.5kg(8.7m/s) = 0

78.0(V1) = 21.75

V1= 0.28 m/s
5 0
3 years ago
Other questions:
  • An adult elephant has a mass of about 5.0 tons. An adult elephant shrew has a mass of about 50 grams. How far r from the center
    12·1 answer
  • As a tractor pulls a plow across a field, it exerts a force on the plow in the forward direction. What is the "equal and opposit
    8·1 answer
  • A capacitor in an LC oscillator experiences a maximum potential difference of 88V and a maximum energy of 2002 uJ. At a certain
    13·1 answer
  • _____ is when a sound wave bounces off a surface back into the medium from which it came.
    15·2 answers
  • An aluminum rod is designed to break when it is under a tension of 600 N. One end of the rod is connected to a motor and a 12-kg
    13·1 answer
  • Which two statements are true?
    10·2 answers
  • Sound waves rely on matter to transmit their energy. They cannot ravel in a vacuum. True or false
    5·2 answers
  • A political campaign manager must decide whether to emphasize television advertisements or letters to potential voters in a reel
    8·1 answer
  • Complete the following statements for each of these rules
    5·1 answer
  • Which of the following is an example of frontier research?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!