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
charle [14.2K]
4 years ago
7

Which statement describes the energy transformation that occurs when a person eats a sandwich to gain energy for a long hike? O

A. Thermal energy is transformed into kinetic energy. B. Chemical energy is transformed into kinetic energy. O C. Thermal energy is transformed into chemical energy. o D. Chemical energy is transformed into potential energy.​
Physics
1 answer:
Nataly [62]4 years ago
7 0

Answer:chemical energy is transformed into kinetic energy

Explanation:

You might be interested in
By what percent is the torque of a motor decreased if its permanent magnets lose 6.5 % of their strength
djyliett [7]
6 is the answer I remember the answer from when I took this and it was easy
4 0
2 years ago
An astronaut has a mass of 90 kg. The astronaut travels to Mars, where gravity is weaker. The acceleration of free fall on the s
marin [14]

Answer:

w = mg

w = 90 * 3.7

w = 333 N

hope it helps you

3 0
3 years ago
Read 2 more answers
I need help on this one please
klio [65]

Lithium shares more properties with Sodium, because they have the same number of valence electrons (one). Choice 1 is correct. Hope this helps!

4 0
3 years ago
A bus contains a 1440 kg flywheel (a disk that has a 0.63 m radius) and has a total mass of 10200 kg. Calculate the angular velo
CaHeK987 [17]

Answer:\omega =93.51 rad/s

Explanation:

Given

mass of Flywheel m_1=1440 kg

mass of bus m_b=10200 kg

radius of Flywheel r=0.63 m

final speed of bus v=21 m/s

Conserving Energy i.e.

0.9(Rotational Energy of Flywheel)= change in Kinetic Energy of bus

Let \omegabe the angular velocity of Flywheel

0.9\cdot \frac{I\omega ^2}{2}=\frac{m_bv^2}{2}

I=moment\ of\ Inertia =mr^2=1440\cdot 0.63^2=571.536 kg-m^2

0.9\cdot \frac{571.536\cdot \omega ^2}{2}=\frac{10200\cdot 21^2}{2}

\omega ^2=21^2\times \frac{10200}{0.9\times 571.536}

\omega =21\times 4.45=93.51 rad/s

8 0
3 years ago
A sled with no initial velocity accelerates at a rate of 3.2 m/s2 down a hill. How long does it take the sled to go 15 m to the
grin007 [14]
S = ut + 1/2 at^2
a = 3.2 m/s^2
s = 15m
Find t
15 = 1/2(3.2)t^2
15 = 3.2t^2/2
30 = 3.2t^2
30/ 3.2 = 9.38
Square root of 9.38 = 3.06
It takes 3.06 seconds
3 0
3 years ago
Other questions:
  • When the hydrogen atom makes the transition from the n=2 to the n=1 energy level, it emits a photon. This photon can be absorbed
    7·1 answer
  • A dc motor with its rotor and filed coils connected in serieshas an internal resistance of
    6·1 answer
  • Which color of light is diffracted at a greater angle from a diffraction grating, red or yellow light?
    10·1 answer
  • Hola! necesito las respuestas de "fuerzas"
    15·1 answer
  • According to Newton's Third Law of Motion, what happens when two objects of unequal masses collide?
    8·1 answer
  • Where might you look on the internet to find good scientific information about illness
    10·2 answers
  • A car battery with a 12 V emf and an internal resistance of 0.037 Ω is being charged with a current of 45 A. Note that in this p
    9·1 answer
  • Resistors 1 and 2− R1 = 50 Ω , R2 = 90 Ω − are connected in series to a 6.0-V battery. Part APart complete What is the potential
    12·1 answer
  • When a piece of metal mass of 72.17 g is
    8·1 answer
  • A 1kg mass is moving at 1m/s. What is its kinetic energy?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!