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3 years ago

which of the following statements best explains how consumers determine growth in technological areas

Physics

1 answer:

Mrac [35]3 years ago

6 0

If these were the missing choices:

a) Consumers fill out questionnaires concerning their need for new products.

b) Consumers vote for politicians who decide which kind of research to support

c) Consumers decide what to buy and what not to buy

d) Consumers influence the decisions of private foundations by deciding where to donate money.

My answer would be: c) Consumers decide what to buy and what not to buy

Every growth is based on the demand of the people. If a good or service is needed then its demand will increase. If a good or service is not needed then its demand will decrease until such time that said good or service will be eliminated.

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1. You are driving south on the 405. You are in traffic so your speed is 35 miles per hour,

Step2247 [10]

Answer:

1. 15.64 m/s

2. 2,354,400 seconds

Explanation:

1. 1mile is equivalent to 1609metres and 1hour is equivalent to 3600sec.

35mph = (35×1609)/3600

= 56315/3600

= 15.64 m/s

2. Note that 1 day ===> 24hrs

60min ==> 1hr

60sec ===> 1min

Thus 27.25 days = 27.25×24×60×60

= 2,354,400 seconds

7 0

2 years ago

A car is being tested for safety by colliding it with a brick wall.The 1300 kg car is initially driving towards the wall at a sp

serg [7]

Answer:

44200 N

Explanation:

To calculate the average force exerted on the car, we will use the following equation

$\begin{gathered} Ft=\Delta p \\ Ft=m(v_f-v_i) \end{gathered}$

Where F is the average force, t is the time, m is the mass, vf is the final velocity and vi is the initial velocity of the car.

Replacing t = 0.5s, m = 1300 kg, vf = -2 m/s, and vi = 15 m/s and solving for F, we get

$\begin{gathered} F(0.5s)=(1300\text{ kg\rparen\lparen-2 m/s - 15 m/s\rparen} \\ F(0.5s)=(1300\text{ kg\rparen\lparen-17 m/s\rparen} \\ F(0.5s)=-22100\text{ kg m/s} \\ F=\frac{-22100\text{ kg m/s}}{0.5\text{ s}} \\ F=-44200\text{ N} \end{gathered}$

Therefore, the average force exerted on the car by the wall was 44200 N

4 0

11 months ago

A 36,287 kg truck has a momentum of 907,175 kg • . What is the truck’s velocity?

Drupady [299]

Given:
m = 36,287 kg, the mass of the truck
P = 907,175 (kg-m)/s, the truck's momentum.

Let v = the truck's velocity.
By definition, the momentum is
P = m*v
Therefore
v = P/m
= (907175 (kg-m)/s) / (36287 kg)
= 25 m/s

Answer: 25 m/s

7 0

3 years ago

Read 2 more answers

Compare the KE of an 80 kg person walking at 4 m/s with that of the same person moving at 6 m/s.

Alla [95]

The correct answer is:
KE at 4 m/s less than KE at 6 m/s

In fact, the formula for the kinetic energy is:
 $K= \frac{1}{2} mv^2$
where m is the mass of the person and v his speed.

When the person is moving at 4 m/s, his kinetic energy is:
 $K= \frac{1}{2} (80 kg)(4 m/s)^2=640 J$
instead, when he's moving at 6 m/s, his kinetic energy is:
$K= \frac{1}{2}(80 kg)(6 m/s)^2=1440 J$

So, the kinetic energy at 4 m/s is less than the kinetic energy at 6 m/s.

7 0

3 years ago

The acceleration (a) of a particle moving with uniform speed (v) in a circle of radius (r) is found to be propotional to r^n and

KATRIN_1 [288]

Answer:

n=-1 and m=2

Explanation:

A particle is moving uniformly with acceleration "a"

Uniform speed is v

And radius of circle is r

The acceleration is proportional to

r^n and v^m

i.e

a∝ rⁿ

a ∝v^m

Combing the two

Then, a∝rⁿv^m

Let k be constant of proportionality

Then, a=krⁿv^m. Equation 1

So, we know that the centripetal acceleration keeping an object in circular path is given as

a=v²/r

Rearranging

a=v²r^-1. Equation 2

So comparing this to the proportional

Equating equation 1 and 2

krⁿv^m = v²r^-1

This shows that,

k=1

rⁿ = r^-1

Then, n =-1

Also, v^m =v²

Then, m=2

Therefore,

n=-1 and m=2

6 0

2 years ago

Read 2 more answers