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
Marat540 [252]
3 years ago
15

Type the correct answer in each box. Round your answers to the nearest hundredth.

Physics
1 answer:
sergey [27]3 years ago
7 0

Hi there!

\large\boxed{PE = 7.35 J, \text{ }v \approx 3.13 m/s}

To find the potential energy of the ball at B, we can use the equation:

PE = mgh

Plug the given gravity, mass, and height:

PE = (1.5)(0.5)(9.8) = 7.35 J

At A, all of this potential energy is changed to kinetic energy, so we can use the following equation:

v = √2KE/m

Plug in the solved for energy and mass:

v = √2(7.35)/1.5

Solve:

v ≈ 3.13 m/s

You might be interested in
A 0.20-kg block on a horizontal frictionless surface is attached to an ideal massless spring whose spring constant is 360 N/m. T
Angelina_Jolie [31]

Answer:

The answer is 41,4 \frac{m}{s^{2}}

Explanation:

To understand this problem we need to visualize when block is at the equilibrium position and when the displacement is x=-2,3.10^{-2}.

According to Newton's law F=ma, if we find the force applied to the block, we can find the acceleration since we know the mass of the block.

<u>If you compress a spring by x displacement under F force, the spring's force can be found as:</u>

F_{spring} =kx

Therefore F=360\frac{N}{m} .2,3.12^{-2} =8,28N

And to find <u>acceleration</u>:

F=ma → 8,28=0,20a → a=41,4\frac{m}{s^{2}}

5 0
3 years ago
Help I’ll give ndburbrbruejdmd
Brilliant_brown [7]

Answer:

Explanation:

1.{1,3}2. adn as if bruh ma dude

6 0
3 years ago
You will write a short essay by using the following thesis as your first sentence: "Cooking food using a charcoal grill is an ex
Anna71 [15]

hey, please dont ask brainley helpers to do your essay as it will get you banned and you will get flagged for playerdrisam from your school, Thankyou-Brainley

5 0
3 years ago
The figure above shows the net force exerted on an object as a function of the position of the object. The object starts from re
weqwewe [10]

Answer:

0.06 Kg

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 0 m/s

Final velocity (v) = 3.0 m/s

Distance (s) = 0.09 m

Net Force (F) = 3 N

Mass (m) =?

Next, we shall determine the acceleration of the object. This can be obtained as follow:

Initial velocity (u) = 0 m/s

Final velocity (v) = 3.0 m/s

Distance (s) = 0.09 m

Acceleration (a) =?

v² = u² + 2as

3² = 0² + (2 × a × 0.09)

9 = 0 + 0.18a

9 = 0.18a

Divide both side by 0.18

a = 9 / 0.18

a = 50 m/s²

Finally, we shall determine the mass of the object. This can be obtained as follow:

Net Force (F) = 3 N

Acceleration (a) = 50 N

Mass (m) =?

F = ma

3 = m × 50

Divide both side by 50

m = 3 / 50

m = 0.06 Kg

Therefore, the mass of the object is 0.06 Kg

5 0
3 years ago
Please help with number 5
Lera25 [3.4K]

Answer:

a.)

Explanation:

a.) is the only possible answer because it is in m/s^2 which are the units for acceleration, and you already know the magnitude of acceleration will be 5 given the other options.

5 0
3 years ago
Other questions:
  • A box of mass 3.1kg slides down a rough vertical wall. The gravitational force on the box is 30N . When the box reaches a speed
    11·2 answers
  • 1. A student bicycled 12 kilometers east in 2 hours. What was the student's average velocity during the trip?
    13·1 answer
  • 1. A 6.0-μF air capacitor is connected across a 100-V battery. After the battery fully charges the capacitor, the capacitor is i
    6·1 answer
  • Evaluate the following statement and explain why it is either true or false: If a spacecraft could travel fast enough, it could
    15·1 answer
  • solution g A square loop is halfway into a magnetic field that is perpendicular to the plane of the loop. The loop mass is 10 g
    11·1 answer
  • If the frequency of radiation is twice as large then its wavelength is
    6·1 answer
  • Select the correct answer.
    14·1 answer
  • How do I calculate (30 points plus a brainlyest if correct)​
    10·1 answer
  • A cylindrical pulley with a mass of 4.4 kg, radius of 0.816 m and moment of inertia 1 2 M r2 is used to lower a bucket with a ma
    15·1 answer
  • A body with mass 4 kg moves with a velocity of 108km/h <br> Calculate it kinetic<br> energy
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!