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
FrozenT [24]
3 years ago
11

Impulse is defined as the average force acting on an object multiplied by the time the force acts. If we let I represent impulse

, F the average force, and t the time, is I = F/t a correct way of expressing this definition? Explain
Physics
1 answer:
Dmitrij [34]3 years ago
7 0

Answer:

Impulse, J=F\times t                                                    

Explanation:

The impulse applied on an object is defined as the force acting on it for a short duration of time. It is given by :

J=F\times t...........(1)

Here

F is the applied force

t is the time taken

In this case the given expression, I=\dfrac{F}{t} is incorrect. The correct expression is given in equation (1). Hence, this is the required solution.

You might be interested in
I have learned that the energy produced by moving electron is called
alex41 [277]
Answer:

kinetic energy

Explanation:

Electrical energy is a type of kinetic energy caused by moving electric charges. The amount of energy depends on the speed of the charges – the faster they move, the more electrical energy they carry.
6 0
3 years ago
Suppose two equal mass cars traveling with equal speeds in opposite directions inelasticcollide head on and stick together. What
Annette [7]

A collision which is inelastic is one in which the internal energy changes.

All the kinetic energy is dissipated

Reasons:

The given parameters are;

The mass of one car = The mass of the second car in the collision = m

The type of collision = Inelastic collision

The speed of each of the cars in the collision = v and -v

Solution:

In an inelastic collision, we have;

m_1 \cdot v_{1i} + m_2 \cdot v_{2i} = (m_1 + m_2) \cdot v_f

Therefore, we get;

m \cdot v_{i} -m \cdot v_{i} = 0= 2 \cdot m \cdot v_f

Which gives;

v_f = 0

The collision is an example of a perfectly inelastic collision, and the final velocity after the collision is zero.

The change in the energy is \Delta K.E. = K.E._{final} - K.E._{initial}

K.E._{initial} = 0.5·m·v² + 0.5·m·v² = m·v²

ΔK.E. = 0.5·(2·m)×0 - 0.5·m·v² + 0.5·m·v² = -m·v²

ΔK.E. = -m·v²

The negative sign stands for energy given out, which gives;

The energy dissipated = m·v² (The total initial kinetic energy)

Therefore, <u>all the kinetic energy is dissipated</u>

Learn more here:

brainly.com/question/19106769

5 0
3 years ago
How far must the point charges q1 = +7.22 µc and q2 = -32.5 µc be separated for the electric potential energy of the system to b
Alik [6]
The formula that we wil be using is the formula for two charges q and Q separated by a distance r which is: U = kQq/r 
Where:
U = electric potential,
Q and q = point charges, and
r = the distance between the point charges.
 So we are looking for 'r', rearranging the formula would give us:
U*r = kQq
r = kQq/U -> this will be the formula that we will be using.
r = (9 x 10^9)*(7.22 x 10^-6)*(-32.5 x 10^-6) / -117 
r = .01805 m
8 0
4 years ago
Which of the following represents a joule?
Andru [333]

Answer:

d. N*m

Explanation:

Workdone which is measured in Joules is calculated using the formula;

Workdone = force * distance

Where;

Force is measured in Newton

Distance is measured in meters.

Therefore, workdone also has the measurement of Newton-meters.

5 0
3 years ago
What is the formula for calculating the efficiency of a heat engine? Answers:
Setler [38]
Efficiency of heat engine is determined by the ratio of difference in temperature of cold from hot reservoir to the temperature of hot reservoir over temperature of hot reservoir.
7 0
3 years ago
Other questions:
  • How do you calculate mass with distance of 30m and kinetic energy 4392j
    10·1 answer
  • What is the primary cause for the change in seasons?
    6·2 answers
  • A common carnival ride, called a gravitron, is a large r = 11 m cylinder in which people stand against the outer wall. the cylin
    14·1 answer
  • A ray diagram is shown.
    7·2 answers
  • if I travel at 3m/s and it takes me 12 seconds to get from the kitchen to the bathroom how far is the bathroom from the kitchen?
    8·1 answer
  • Determine the Universal Gravitational Constant (G).
    12·1 answer
  • A body initially at rest is accelerated at a constant rate for 5.0 seconds in the positive x direction. If the final speed of th
    11·1 answer
  • Which indicates that light travels in straight lines?
    5·2 answers
  • Explanatory Writing You have been asked to suggest a site for a new large telescope. Write a short proposal outlining why you th
    5·2 answers
  • In which of the two following cases would you recommend winnowing ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!