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
Nana76 [90]
3 years ago
14

Is a lump of coal chemical energy

Physics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer:

well, not unless the coal is reacting with something. if it's just sitting there, then it can't power anything.

Explanation:

You might be interested in
2. The light from the Sun reaches Earth in 8.3 minutes. The speed of light is 11,184,681 miles/minute. How far is
12345 [234]

Answer:

92,832,852.3 miles

Explanation:

6 0
2 years ago
A 4.0 kg shot put is thrown with 30 N of force. What is its acceleration?
weeeeeb [17]

7.5 m/s

a = F ÷ m

a = (30 N) ÷ (4.0 kg)

a = 7.5 m/s2

7 0
3 years ago
Which unit do astronomers use for angular measurement?
Alex787 [66]
C and D are units of length or distance.
A is a measured angle.
B is a unit of angular measurement.
8 0
2 years ago
The general kinematic equations of motion for vertical displacement can also be simplified significantly. Write the simplified
Setler [38]

Answer:

Δy = v₀t + (1/2)gt²

where g = 9.81 m/s if the body is moving downwards and g = -9.81 m/s if the body is moving upwards

Explanation:

The general kinematic equation for horizontal displacement is gives as:

Δx = v₀t + (1/2)at²

Where

Δx = change in the x direction

v₀ = initial velocity

t = time

a = acceleration

If the body is vertically instead of horizontally, Δx is changed to Δy

Δy = v₀t + (1/2)at²

For a vertical moving body, the acceleration it experiences is the gravitational accerelation of the earth 'g'

So the equation becomes:

Δy = v₀t + (1/2)gt²

where g = 9.81 m/s if the body is moving downwards and g = -9.81 m/s if the body is moving upwards

4 0
3 years ago
A solenoid having N turns and carrying a current of 2.000 A has a length of 34 00 cm. If the magnitude of the magnetic field gen
umka21 [38]

Answer:

B) 1218

Explanation:

N = Total number of turns in the solenoid

L = length of the solenoid = 34.00 cm = 0.34 m

B = magnetic field at the center of the solenoid = 9 mT = 9 x 10⁻³ T

i = current carried by the solenoid = 2.000 A

Magnetic field at the center of the solenoid is given as

B = \frac{\mu _{o}N i}{L}

9\times 10^{-3} = \frac{(4\pi\times 10^{-7} )N (2)}{0.34}

N = 1218

3 0
3 years ago
Read 2 more answers
Other questions:
  • 3. As the duration of a maximal effort increases from 10 seconds or less to between 10 and 180 seconds, what factor becomes limi
    10·1 answer
  • The force is proportional to what measurement
    15·1 answer
  • How many gallons of blood does it pump? (Estimate that the heart pumps 50 cm3 of blood with each beat.)
    10·2 answers
  • Explain why static charges do not build up on a conductor
    15·2 answers
  • Vector A with arrow has a magnitude of 35 units and points in the positive y direction. When vector B with arrow is added to A w
    10·1 answer
  • One end of a uniform well-lagged metal bar of length 0.80 m and cross-sectional area of
    11·1 answer
  • A 0.108-kg block is suspended from a spring. When a small pebble of mass 31 g is placed on the block, the spring stretches an ad
    13·1 answer
  • Are small molecular units joined together in large molecules
    12·1 answer
  • Một electron di chuyển theo đường tròn vuông góc với từ trường đều 1mT. Moment động lượng của electron đối với tâm vòng tròn là
    9·1 answer
  • Human sense impressions are subjective and qualitative
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!