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
NNADVOKAT [17]
2 years ago
9

Gerard is measuring the speed of a remote-controlled airplane. He measures that the airplane travels 110 m in 5.4 seconds, givin

g a speed of 20 m/s. What will Gerard need to change, if he wants to get a more precise value for speed
Physics
1 answer:
netineya [11]2 years ago
3 0

Gerard need to change the Acceleration.

<h3>What is speed?</h3>

Speed is defined as the distance travelled by an object in  a unit time.

Mathematically ,

Speed =\frac{Distance}{Time}

Here the given values are:

Distance = 110m and  time = 5.4 s

Speed = \frac{110}{5.4} = 20 m/s

For increasing the speed he need to change the acceleration.

Which is define as the  rate at which velocity changes with time, in terms of both speed and direction.

Any change in the velocity of an object results in an acceleration , increasing speed (what people usually mean when they say acceleration).

learn more about speed: brainly.com/question/7359669

#SPJ1

You might be interested in
Which is an important step in how an electric motor uses magnetic force to produce motion?
Fiesta28 [93]

Answer:B.As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.

Explanation:

3 0
3 years ago
Read 2 more answers
When the angle of incidence equals the angle of reflection it is called the law of ​
Reptile [31]

The law of reflection

6 0
2 years ago
Read 2 more answers
What are the four most common gases in dry air?
dimaraw [331]
Nitrogen
oxygen
argon
carbon dioxide
7 0
3 years ago
Balance the nuclear equation
NARA [144]

Answer:

For example, an alpha particle is a helium nucleus (He) with a charge of +2 and a mass number of 4, so it is symbolized 42He 2 4 He . This works because, in general, the ion charge is not important in the balancing of nuclear equations.

Explanation:

3 0
3 years ago
A 1.40-kg block is on a frictionless, 30 ∘ inclined plane. The block is attached to a spring (k = 40.0 N/m ) that is fixed to a
Oliga [24]

Answer:

the mass drop by 6.5cm before coming to rest.

Explanation:

Given that:

the mass of the block M= 1.40 kg

angle of inclination θ = 30°

spring constant K = 40.0 N/m

mass of the suspended block m = 60.0 g = 0.06 kg

initial downward speed = 1.40 m/s

The objective is to determine how far does it drop before coming to rest?

Let assume it drops at y from a certain point in the vertical direction;

Then :

Workdone by gravity on the mass of the block is:

w_1g = 1.4*9.81*y*sin30 = - 6.867y

Workdone by gravity on the mass of the suspended block is:

w_2g = 0.06*9.81 = 0.5886

The workdone by the spring = -1/2ky²

= -0.5 × 40y²

= -20 y²

The net workdone is = -20 y² - 6.867y + 0.5886y

According to the work energy theorem

Net work done = Δ K.E

-20 y² - 6.867y + 0.5886 = 1/2 × 0.06 × 1.4²

-20 y²  - 6.867y + 0.5886 = 0.5 × 0.1176

-20 y²  - 6.867y + 0.5886 = 0.0588

-20 y²  - 6.867y + 0.5886 - 0.0588

-20 y²  - 6.867y + 0.5298 = 0

multiplying through by (-)

20 y²  + 6.867y - 0.5298 = 0

Using the quadratic formula:

\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}

where;

a = 20 ; b = 6.867 c= - 0.5298

\dfrac{-(6.867)  \pm \sqrt{(6.867)^2-(4*20*-0.5298)}}{2*(20)}

= \dfrac{-(6.867)  + \sqrt{(6.867)^2-(4*20*-0.5298)}}{2*(20)} \ \ \ OR \ \ \  \dfrac{-(6.867)  - \sqrt{(6.867)^2-(4*20*-0.5298)}}{2*(20)}= 0.0649 OR  −0.408

We go by the positive integer

y = 0.0649 m

y = 6.5 cm

Therefore; the mass drop by 6.5cm before coming to rest.

7 0
3 years ago
Other questions:
  • Nonmetals are excellent conductors of heat and electricity.
    8·2 answers
  • 1) Rephrase the objective. (limit 2 sentences). Give a brief explanation of the concepts of linear motion, its characteristics a
    10·2 answers
  • From the lab iodine clock reaction: explain the reason this result by comparing what is involved in changing Fe2+ into Fe 3+ to
    10·1 answer
  • The current in a single-loop circuit with one resistance R is 6.3 A. When an additional resistance of 3.4 Ω is inserted in serie
    10·2 answers
  • What happens if balanced forces are applied to a moving object? A. The object stops moving. B. The object moves faster in the sa
    7·1 answer
  • Which disease do you think is most easily spread? 5 Answers
    11·1 answer
  • Question 2 (5 points)
    14·1 answer
  • A car which is traveling at a velocity of 1.6 m/s undergoes an acceleration of 9.2 m/s over a distance of 540 m. How fast is it
    5·1 answer
  • PLZ HELP ME FAST A relationship between two variables is called:
    10·2 answers
  • Hello people ~
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!