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
julsineya [31]
3 years ago
13

Do you think energy can be “used up?” Why or why not?

Physics
1 answer:
My name is Ann [436]3 years ago
8 0
I dint think energy can be used up because energy cant be created nor destroyed
You might be interested in
When 1 kg of water and 1 kg of wood absorb the same amount of heat, the change in temperature of the wood is greater than the ch
Strike441 [17]

Intermolecular forces in water are greater than those in wood. APEX

6 0
4 years ago
What is the velocity of a wave that has a wavelength of 20 meters and frequency of 0.5<br> Hz?
k0ka [10]

Answer:

v = 10 m/s

Explanation:

recall that velocity is related to wavelength and frequency by the formula

v = fλ

where v = velocity, f = frequency and λ= wavelength

Simply substitute these into the formula:

v = fλ

v = (0.5)(20)

v = 10 m/s

3 0
3 years ago
Read 2 more answers
A moving object is in equilibrium. Which best describes the motion of the object if no forces change?
Alchen [17]
If the object is in equilibrium that means that the sum of the forces on it is zero and the net force is zero. If none of the forces changes then the object continues in constant uniform motion. That means constant speed in a straight line.
8 0
4 years ago
Read 2 more answers
An 80-kg hiker climbs to the top of a tall hill and builds up 470,000 J of gravitational potential energy. How high did the hike
nekit [7.7K]

Answer:

599 meters is the answer rounded to the nearest whole number and 599.489795918 meters is the complete answer

Explanation:

to find gravitational potential energy you multiply mass x acceleration due to gravity (always 9.8 on earth) x hight

since we know the gravitational potential energy and want to find out the hight, we take the gravitational potential energy (470,000) and divide it by the product of acceleration due to gravity x mass (9.8 x 80)

so how high the hiker climbed is equal to 470,000 divided by (9.8 x 80)

hight = 470,000 / (9.8 x 80)

hight = 470,000 / 784

hight = 599.489795918 meters

as for rounding, if the decimal is less than 5 you round "down" and keep the current whole number, if the decimal is 5 or greater you round "up" and add 1 to get your new number

5 0
3 years ago
Read 2 more answers
Question 3
pickupchik [31]
When a police officer is trying to decide if a driver is speeding, what is his point of reference. The speed limit
4 0
3 years ago
Other questions:
  • A carpenter apprentice was killed when he was struck in the head by a nail that was fired from a powder actuated tool. The tool
    5·1 answer
  • A sled is on an icy (frictionless) slope that is 30° above the horizontal. When a 40-N force, parallel to the incline and direct
    10·1 answer
  • Ball A is allowed to fall and strike ball B. Assume that all of ball A's energy is transferred to ball B at point I, and that th
    10·2 answers
  • A velocity vs. time graph starts at 0 and ends at 10 m/s, stretching over a time- span of 15 s with constant acceleration. What
    14·1 answer
  • The units we use to measure the sound intensity level are _____.
    7·1 answer
  • Why should you never use the coarse adjustment on high power
    9·1 answer
  • What is the kinetic energy of a 478 kg object that is moving with the speed of 15 m/s
    11·1 answer
  • Please answer the following question
    7·2 answers
  • 3<br><br><br> help with physics!!<br><br> ----------------<br><br> will give brainliest
    11·1 answer
  • A wire has a diameter of 2. 0 mm and a length of 32 m, and is found to have a resistance of 1. 8 ω. what is the resistivity of t
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!