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
jeka57 [31]
3 years ago
13

Based on the law of conservation of energy, how can we reasonably improve a machine’s ability to do work?

Physics
2 answers:
marshall27 [118]3 years ago
8 0

Answer:

Reduce the friction between its moving parts.

Explanation:

Sholpan [36]3 years ago
6 0
You will have to redefine the machine's boundaries.
You might be interested in
Please Help............................
vlada-n [284]
Protons
electrons are negatively charged
neutrons are neutral
7 0
3 years ago
Read 2 more answers
What is occurring when two waves traveling along the same medium meet and cancel each other out?
timofeeve [1]

Answer:

Destructive interference

Explanation:

Destructive interference occurs when waves come together in such a way that they completely cancel each other out. When two waves interfere destructively, they must have the same amplitude in opposite directions.

6 0
3 years ago
Read 2 more answers
A kite 100 ft above the ground moves horizontally at a speed of 12 ft/s. at what rate is the angle (in radians) between the stri
Viefleur [7K]
<span>Answer: So this involves right triangles. The height is always 100. Let the horizontal be x and the length of string be z. So we have x2 + 1002 = z2. Now take its derivative in terms of time to get 2x(dx/dt) = 2z(dz/dt) So at your specific moment z = 200, x = 100âš3 and dx/dt = +8 substituting, that makes dz/dt = 800âš3 / 200 or 4âš3. Part 2 sin a = 100/z = 100 z-1 . Now take the derivative in terms of t to get cos a (da./dt) = -100/ z2 (dz/dt) So we know z = 200, which makes this a 30-60-90 triangle, therefore a=30 degrees or Ď€/6 radians. Substitute to get cos (Ď€/6)(da/dt) = (-100/ 40000)(4âš3) âš3 / 2 (da/dt) = -âš3 / 100 da/dt = -1/50 radians</span>
5 0
3 years ago
Two friends whisper at a volume of 20 decibels. Later, they converse at a volume of 40 decibels.
Yuki888 [10]
40 dB is 20 dB more power than 20 dB is. 20 dB more means 100 times as much.
4 0
3 years ago
Read 2 more answers
The graph represents the gravitational attraction between two equal masses vs. their distance apart, which statement BEST descri
swat32
C would be the answer based on reass
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the wavelength of a wave if the wave speed is 24 m/s and the frequency is 48 Hz?
    11·2 answers
  • Which of the following is best determined by applying the principles of relativity and uncertainty rather than Newtonian physics
    15·2 answers
  • Which item is heavier, 50 kg of cotton or 50 kg of iron?
    7·1 answer
  • Which until is commonly used to measure density
    7·2 answers
  • What does decelerate mean
    10·1 answer
  • Gravity causes all falling objects to accelerate at a rate of 98 m/s2.<br> O True<br> O False
    10·1 answer
  • Use a variation model to solve for the unknown value. Use as the constant of variation. The stopping distance of a car is direct
    8·1 answer
  • . A car going 50 m/s accelerates to pass a truck. Five seconds later the car is going 80m/s. Calculate the acceleration of the c
    12·1 answer
  • g You shine orange laser light that has a wavelength of 600 nm through a narrow slit. The slit forms a diffraction pattern on a
    9·1 answer
  • An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!