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
Sphinxa [80]
3 years ago
13

PLEASE HELP!!!! What are 3 ways that machines can make doing work easier? (thats the whole question)

Physics
2 answers:
otez555 [7]3 years ago
7 0

Answer:

they can do work easier for an example a car a car make things easier by going some were far it can also be used to help people travel instead of a plane it can also be used for carriying things like a boat. (you can put it in a diffrent way)

Explanation:

hope it helps! :)

Rudiy273 years ago
4 0

Answer:

Machines reduce the time of work hence reducing the rate of doing work ( power ).

Machines e.g pulleys carry heavy loads with a less and reasonable effort.

Machines e.g generators induce current in a limited amount of time

You might be interested in
An ultrasound wave vibrates 30,000 times per second. what is the frequency
erica [24]
Frequency is given in units of Hertz (Hz) and is defined as the number of cycles per second.  The sound wave has 30,000 cycles per second, so its frequency is 30,000Hz.
This is more conveniently expressed as 30kHz, where the k indicates a multiplier of 1,000.
5 0
3 years ago
A ball is tossed with enough speed straight up so that it is in the air several seconds. Assume upward direction is positive and
Viefleur [7K]

Answer:

Answer:

The velocity of the ball when it reaches its highest point is  0

Explanation:

The velocity of the ball when it reaches its highest point is 0

Once the ball is tossed into the air, as it goes up, the initial velocity with which it was thrown, reduces, as the motion of the ball is hindered by several forces such as gravity and air resistance. This slows down the velocity of the ball, up until it reaches a point, where the upwards velocity of the ball becomes zero. at this point, the ball begins to fall back to the ground.

6 0
3 years ago
A bullet with a mass of 5.00 x 10^-3 kg is loaded into a gun. The loaded gun has a mass of 0.52 kg. The bullet is fired, causing
beks73 [17]
For the answer to the question above,
 220 m/s 
<span>mass of the bullet * velocity of the bullet = mass of the gun * velocity of the gun </span>
<span>0.005 kg * v = 0.52 kg * 2.1 m/s </span>
<span>-> v = (0.52kg * 2.1 m/s) / 0.005 kg = 218.4 m/s 
</span>I hope my answer helped you. Have a nice day!
3 0
4 years ago
A car is traveling at a constant speed of 20 m/s for 3 seconds. Then the driver puts on the brakes. The total distance the car t
yarga [219]

Answer:

15 seconds

Explanation:

If car was moving at 20m/s for 3 sec.

if car traveled 100m = 15 sec total

3 0
3 years ago
An engineer weighs a sample of mercury (ρ = 13.6 × 103 kg/m3 ) and finds that the weight of the sample is 6.0 n. what is the sam
Amanda [17]
Given:
ρ = 13.6 x 10³ kg/m³, density of mercury
W = 6.0 N, weight of the mercury sample
g = 9.81 m/s², acceleration due to gravity.

Let V =  the volume of the sample.
Then
W = ρVg
or
V =  W/(ρg)
   = (6.0 N)/[(13.6 x 10³ kg/m³)*(9.81 m/s²)]
   = 4.4972 x 10⁻⁵ m³

Answer: The volume is 44.972 x 10⁻⁶ m³
5 0
3 years ago
Other questions:
  • What are the components of vector A if its magnitude is 70 m/s and makes an angle of 51.7° with the +x-axis?
    13·1 answer
  • If a gas has a gage pressure of 156 kPa, it is absolute pressure is approximately
    13·1 answer
  • Definition oceanographer
    5·1 answer
  • The centripetal force acting on the space shuttle
    7·2 answers
  • How many miles per hour does it take to break the sound barrier?
    13·2 answers
  • Which has more gravitaatoinal potental energy: a bird on the ground or the same bird in the tree? why?
    10·1 answer
  • Can you help quick in science please
    14·1 answer
  • Which of the following processes add methane (CH4) to the atmosphere?
    5·2 answers
  • 1. The mass of an object on the Earth is 100. kg.
    15·1 answer
  • What mistake did Dominic make?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!