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
olchik [2.2K]
3 years ago
11

Please help with this question.

Physics
1 answer:
EastWind [94]3 years ago
4 0

Answer:

41.16 Joules

Explanation:

Potential energy at a given instant is a function of mass and height of an object. The formula is

E_p = mgh = 2.80kg\cdot 9.8\frac{m}{s^2}\cdot 1.50m = 41.16 J

You might be interested in
On a highway curve with a radius of 46 meters, the maximum force of static friction that can act on a 1,200 kg car going around
Mekhanik [1.2K]

Answer:

v\approx 16.956\,\frac{m}{s}

Explanation:

The motion of the vehicule on a highway curve can be modelled by the following equation of equilibrium:

\Sigma F = f = m\cdot \frac{v^{2}}{R}

The maximum speed is:

v = \sqrt{\frac{f\cdot R}{m} }

v = \sqrt{\frac{(7500\,N)\cdot (46\,m)}{1200\,kg} }

v\approx 16.956\,\frac{m}{s}

7 0
3 years ago
how could you prove to a skeptic that the beats are an interference effect that requires both sound sources? test out your metho
podryga [215]

Beats are interference patterns between two tones of different frequencies. To prove the skeptic first, play the recorded audio as there are no beats in it. Now take two sound sources with different frequencies. When both sources are turned on, we hear notes that rise and fall at equal intervals. That's what's called beats.

A frequency beat occurs when two waves with different frequencies overlap, causing alternating cycles of constructive and destructive interference between the waves.

When we tap the table with our finger, then put our ear to the table, and tap the table surface as far as 30 cm from our ear. Then the sound of beats on the table will sound louder when we put our ears on the table. So, it can be concluded that solid objects can conduct sound better than air. This is because the molecules or particles of solid objects are denser than air.

Learn more about the beat's frequency at brainly.com/question/14157895

#SPJ4

7 0
1 year ago
[TRUE/FALSE] If an object is moving at constant velocity it must be in equilibrium.
DENIUS [597]

Answer:

yes

Explanation:

objects with constant velocity also have zero net external force. this means the forces on the object are balanced. this mean they are in equilibrium

4 0
3 years ago
Which statement accurately describes the relationship between force and momentum?
ivann1987 [24]

Answer:

A.

Explanation:

momentum depends on weight and speed

4 0
3 years ago
In order for acceleration to occur, something must be..
hoa [83]
Acceleration occurs whenever the direction or the speed changes
8 0
3 years ago
Other questions:
  • How many states have 21 year old minimum drinking age laws
    5·1 answer
  • 1:a boy 2 a girl pulling a heavy crate at the same time w/10 unite of force each.What is the net force acting on the object
    5·1 answer
  • A student visits the beach and wants to explore how landforms, such as sand dunes, are the result of changes caused by wind. wha
    11·2 answers
  • What did early experiments and Coulomb’s Law describe? Select all that apply. The further away two charged objects are the stron
    10·1 answer
  • How is sound detected by the brain
    8·2 answers
  • An insulated rigid tank initially contains 1.4-kg saturated liquid water and water vapor at 200°C. At this state, 25 percent of
    9·1 answer
  • A marble rolls off a table from a height of 1.5 meters. Approximately how much time was the marble in the air?
    6·1 answer
  • The graph represents velocity over time...
    14·1 answer
  • A box is pushed horizontally with constant speed across a rough horizontal surface. Which of the following must be true?
    5·1 answer
  • I need heelp plzzzzz can anyone heelp mee
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!