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
baherus [9]
1 year ago
7

See attachment for the question

Physics
1 answer:
weqwewe [10]1 year ago
4 0

The magnitude of force acting on the bumper is 3760 N.

<h3>What is Work energy theorem?</h3>

It states that the Work done in moving a body is equal to the change in kinetic energy of the body

Kinetic energy = 1/2 mv²

Given is a car's bumper designed to withstand 4.32 km/h or 1.2 m/s collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance.

The cushion collapses 0.180 m while bringing 940 kg car to rest from a initial speed of 1.2 m/s

Work done = Force x displacement

As the displacement of the bumper and force acted on it is in same direction, so the work done is

W = Fxcos0° = Fx

The body is coming to rest, so, final velocity is zero. Then, change in kinetic energy will be

ΔK.E = K.Ef - K.Ei

ΔK.E = m/2 (v² - u²)

According to work energy theorem, work done is

W = Fx  = m/2 (v² - u²)

Substitute the value and calculate the force,

F  = [940 x (0² - 1.2²)] / 2x0.180

F = 3760 N

Thus, the magnitude of force is 3760 N.

Learn more about work energy theorem.

brainly.com/question/10063455

#SPJ1

You might be interested in
The_____ form acidic compounds with hydrogen.
dsp73
Chlorine forms hydrochloric acid when reacted with hydrogen
7 0
3 years ago
Read 2 more answers
Definition: A potential path for the flow of electricity with at least one gap in the path that prevents this flow. The gap is u
Andreas93 [3]

Answer:

Open circuit

Explanation:

An open circuit is simply an electrical circuit that is not complete. In such a circuit, there is a gap and this will not allow the electric current to pass through.

Despite all the elements being complete in the circuit, an open circuit will halt the flow of electric current and will not do deliver the necessary energy it is supposed to.

In such a circuit, the wires are cut of and not connected properly.

The reverse is a closed circuit.

7 0
3 years ago
Read 2 more answers
Examine the symbols below:
iris [78.8K]

Answer: Symbol A

Explanation:

The four symbols described here represent:

- Symbol A shows two dots and a line draw from one not connected to the other.  --> this is an open switch. A switch is component of a circuit that is used to open/close the circuit in order to interrupt/allow the flow of current through the circuit. In this case, the switch is open, since the line does not connect the second dot.

- Symbol B shows two dots and a line draw from one connected to the other.  --> this is the symbol used to represent the switch when it is closed, so it is a closed switch.

- Symbol C shows vertical lines in the pattern long, short, long, and short with a plus and minus symbol on it. --> this symbol represents a battery, which consists of two or more cells and provides the electromotive force that pushes the electrons along the circuit.

Therefore, the correct symbol representing the open switch is

Symbol A

6 0
3 years ago
Read 2 more answers
A physician orders Humulin R 44 units and Humulin N 40 units qam and Humulin R 35 units ac evening meal subcutaneously. How many
jekas [21]

The question is incomplete, the concentration of qam and humulin is not given unless R is used concentration

Complete question:

A physician orders Humulin 50/50 44 units and Humulin N 40 units qam and Humulin R 35 units ac evening meal subcutaneously. How many total units of insulin are administered each morning?

Answer:

the total units of insulin admistered each morning

= 22 units of qam and humulin

Explanation:

given

44 units and Humnlin N

with concentration 50/100 = 1/2 = 0.5

∴ 44 × 0.5 ≈ 22 units in the morning

regular insulin administered each day

(22 + 35)units of qam and humulin

= 57units

5 0
3 years ago
How to use unbalanced forces in a sentence
leva [86]
Forces occur in pairs and can be either balanced or unbalanced. Balanced forces do not cause a change in motion. Unbalanced Forces do cause a change in motion. 
4 0
3 years ago
Other questions:
  • A flute player hears four beats per second when she compares her note to an 880 Hz tuning fork (note A). She can match the frequ
    5·1 answer
  • imagine riding a single-speed bicycle. why do you have to push harders on the pedals to start the bicycle moving than to keep it
    6·1 answer
  • A sinusoidal transverse wave of amplitude ym = 8.4 cm and wavelength = 5.3 cm travels on a stretched cord. Find the ratio of the
    9·1 answer
  • An airplane is flying at a constant speed in a positive direction. It slows down when it approaches the airport where it's going
    15·1 answer
  • Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg) A. has a higher a
    11·1 answer
  • A sound is recorded at 19 decibels. What is the intensity of the sound?
    10·1 answer
  • A student shines a mixture of red and blue light onto a blue toy car. What colour will the car appear?
    14·1 answer
  • Find the force required to do 25 joule work when the force causes a displacement of 0.5 m​
    15·1 answer
  • A 55.2 kg softball player moving 3.11 m/s slides across dirt with uk=0.310. How far does she slide before coming to a stop​
    12·1 answer
  • What does it mean to overcome gravity?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!