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
marysya [2.9K]
2 years ago
7

1. A book resting on a shelf was found

Physics
1 answer:
Alex2 years ago
3 0

Answer:

12J

Explanation:

Right before it hits the ground, the initial potential energy and the final kinetic energy will equal each other due to conservation of energy.

You might be interested in
Vocabulary
katrin2010 [14]
We don’t have the terms
8 0
2 years ago
What is the potential energy of a 2kg plant that is on a windowsill 1.3 m high?
klio [65]

Answer:

25.48

Explanation:

6 0
2 years ago
Find the following answer based on the image.
saul85 [17]

<u>We are given:</u>

Mass of Neptune = 1.03 * 10²⁶ kg

Distance from the center of Neptune (r) = 2.27 * 10⁷

now, computing the value of the acceleration due to gravity (g)

<u>Finding g:</u>

We know the formula:

g = G(mass of planet) / (r)²

g = [6.67 * 10⁻¹¹ * 1.03*10²⁶] / (2.27*10⁷)                      [since G is 6.67*10⁻¹¹]

g = (6.87 * 10¹⁵) / (5.15 * 10¹⁴)

which can be rewritten as:

g = (6.87 * 10¹⁵ * 10⁻¹⁴) / 5.15

g = (6.87 * 10¹⁵⁻¹⁴) / 5.15

g = (6.87/5.15) * 10

g = 1.34 * 10

g = 13.4 m/s² <em>(approx)</em>

5 0
3 years ago
found the potential spring energy. not sure how to find the height of the block by knowing only the mass. found the weight of it
evablogger [386]

(h + .16) m g = 1/2 k x^2   total PE of block relative to where it stops

(h + .16) .82 * 9.8 = .5 * 120 * .16^2    PE released = PE of  spring

8.04 h + 1.29 = 1.536

h = (1.536 - 1.29) / 8.04 = .031 m = 3.1 cm

7 0
3 years ago
In the formula used to solve problems related to the first law of thermodynamics, what does Q represent? A.internal energy
Blizzard [7]
B, heat, is the correct answer. Heat is represented by a capital q in thermodynamic equations.
7 0
3 years ago
Read 2 more answers
Other questions:
  • The primary service used by stations to exchange mac frames when the frame must traverse the ds to get from a station in one bss
    10·1 answer
  • By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the drawing shows. The pulley can be tre
    11·1 answer
  • You have two identical pure silver ingots. You place one of them in a glass of water and observe it to sink to the bottom. You p
    6·1 answer
  • Which electromagnetic wave has the lowest frequencies (less than 3..*.10 © hertz)?
    5·1 answer
  • Greg dropped a coin from the h meter tall building. If it takes t seconds to reach the ground, determine the position of the coi
    15·1 answer
  • Hilda pushes her sofa across the room with a force of 40 N. It accelerates at 2 m/s/s. What is the mass of the sofa?
    6·2 answers
  • Find the magnitude &amp; direction: 50N 25 N 35 N 10N
    14·1 answer
  • Choose the +x-direction to point to the right. • Object 1 has a mass 1.66 kg and is moving to the right at 11.2 m/s. • Object 2
    7·1 answer
  • PLEASE HELP ASAP!! DUE IN AN HOUR :’))!!
    14·1 answer
  • PLS I NEED TO TURN THIS IN SOON
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!