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
LenKa [72]
3 years ago
5

A toy plane with a mass of 1.5 kg is flying in the air at 8.0 m/s. What is its kinetic energy?

Physics
2 answers:
natita [175]3 years ago
7 0

Answer:

KE=48J

Explanation:

You use the equation:

KE=1/2mv^2

KE=1/2(1.5kg)(8.0m/s)^2

KE=48J

Nikolay [14]3 years ago
5 0

Given : A toy plane has a mass of 1.5kg . It is flying in air at a speed of 8m/s .

To Find : The Kinetic energy of the plane .

Solution : The mass of the toy plane is 1.5kg and Velocity is 8.0 m / s . So we know the formula to find the kinetic energy as ,

\boxed{\red{\bf Energy_{Kinetic}=\dfrac{1}{2}mv^2}}

On substituting the respective values,

⇒ KE = ½mv².

⇒ KE = ½ × 1.5 kg × (8 m/s)².

⇒ KE = ½ × 1.5 kg × 64m²/s² .

⇒ KE = 48 J .

<em><u>Hence</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>Kineti</u></em><em><u>c</u></em><em><u> energy</u></em><em><u> of</u></em><em><u> the</u></em><em><u> </u></em><em><u>plane</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>4</u></em><em><u>8</u></em><em><u>J</u></em><em><u>o</u></em><em><u>u</u></em><em><u>l</u></em><em><u>e</u></em><em><u>s</u></em><em><u>.</u></em>

You might be interested in
Write equations for both the electric and magnetic fields for an electromagnetic wave in the red part of the visible spectrum th
elena-14-01-66 [18.8K]

The peak magnetic field of the electromagnetic wave in the red part of the visible spectrum is 9.67 x 10⁻¹⁰ T.

<h3>Relationship between electric and magnetic field</h3>

The relationship between electric and magnetic field at a given peak electric field is given as;

c = (E₀) / (B₀)

where;

  • c is speed of light
  • E₀ is the peak electric field
  • B₀ is the peak magnetic field

B₀ = E₀ / c

B₀ = (2.9) / (3 x 10⁹)

B₀ = 9.67 x 10⁻¹⁰ T

Thus, the peak magnetic field of the electromagnetic wave in the red part of the visible spectrum is 9.67 x 10⁻¹⁰ T.

Learn more about peak magnetic field here: brainly.com/question/24487261

8 0
2 years ago
A 2430 pound roller coaster starts from rest and is launched such that it crests a 105 ft high hill with a speed of 59 mph. The
Rudik [331]

Answer:

Explanation:

Given

Weight of roller coaster is W=2430\ pound

mass of roller coaster m=\frac{W}{g}=\frac{2430}{32.2}=75.45

Distance traveled by roller coaster d=396\ ft

drag force f_d=85\ pounds

velocity at top v=59 mph\approx 86.53\ ft/s

Suppose E is the initial energy

Conserving Energy at bottom and top

E=\frac{1}{2}mv^2+mgh+f_d\cdot d

E=0.5\times 75.45\times 86.53^2+2430\times 105+85\times 396

E=2.9\times 10^5\ foot-pound

5 0
3 years ago
Mike rides his horse with a constant speed of 20 km/h. How far can he travel in 4 hours?
gizmo_the_mogwai [7]

Answer:

Mike can travel 80 Km in 4 hours

4 0
3 years ago
1. Los Angeles lies on Pacific plate, San Francisco lies on North American plate. When will the two cities meet if the distance
spin [16.1K]

Los Angeles lies on the Pacific plate, San Francisco lies on the North American plate, and the meeting point of the two cities is mathematically given as

T = 120 x 105 years

<h3>What is the meeting point of the two plates?</h3>

Generally, the equation for Distance is mathematically given as

D = Rate x Time

Therefore

T = D/R

T = (600 x 105) / 5

T = 120 x 105 years

In conclusion, the meeting point of the two plates will be

T = 120 x 105 years

Read more about Arithmetic

brainly.com/question/22568180

#SPJ1

8 0
1 year ago
PLEASE ANSWER ASAP!!!!!!!
Viefleur [7K]

Answer:

B. Mechanical energy= 50J+30J=80J

4 0
3 years ago
Other questions:
  • A strong lightning bolt transfers an electric charge of about 16 C to Earth (or vice versa). How many electrons are transferred?
    6·1 answer
  • The upward force on an airplane's wing is thrust.
    8·1 answer
  • If a substance was described as smooth, square, and tan, what properties are
    7·2 answers
  • A fixed 15.3-cm-diameter wire coil is perpendicular to a magnetic field 0.77 T pointing up. In 0.20 s , the field is changed to
    12·1 answer
  • sketch a graph of position vs. time for a person starting 0.4 m away and standing still. Include an explanation of your predicti
    8·1 answer
  • Which statement best describes the process that takes place in these nodules?
    14·2 answers
  • Which of the following would be an example of positive eugenics?
    9·2 answers
  • An object of mass m 1 moving with speed v collides with another object of mass m 2 at rest and stick to it. Find the impulse to
    5·1 answer
  • Help please ! Ill give brainliest !! ☁️✨
    7·1 answer
  • Compute the electric charge on the surface which is the portion of the cone z = 3x2 + 3y2 in the first octant that lies between
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!