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
ehidna [41]
3 years ago
8

A metal company’s old machine makes bolts at a constant rate of 100 bolts per hour. The company’s new machine makes bolts at a c

onstant rate of 150 bolts per hour. If both machines start at the same time and continue making bolts simultaneously, how many minutes will it take the two machines to make a total of 300 bolts?
Physics
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

72 minutes

Explanation:

The combined rate of the two machines is 250 bolts/hr:

(100 bolts/hr) + (150 bolts/hr) = 250 bolts/hr

The number of bolts is equal to the rate multiplied by time, therefore an expression for time can be found:

Bolts = (rate)(time) >> Time = (bolts)/(rate)

The time necessary to make 300 bolts is:

Time = (bolts)/(rate)

Times = (300 bolts) / (250 bolts/hr) = 1.2 hr

The time in hours is converted to time in minutes as follows:

(1.2 hr) (60 min/hr) = 72 minutes

You might be interested in
Rubber is which of the following?
MariettaO [177]
Rubber is an insulator
8 0
2 years ago
A running back with a mass of 70 kg travels down the field with a velocity of 5.0 m s . Calculate the kinetic energy of the foot
jarptica [38.1K]

K.E = 1/2 mv²

    =  1/2 (70kg) (5.0ms)²

    =  1 ˣ ( 1750) / 2

    = 875 kgms²

     

3 0
3 years ago
Read 2 more answers
The area of the united states that has the highest level of average daily solar radiation by month would be
Vlada [557]
The area of the United States that has the highest level of Average Daily Solar radiation by month would be:

A) the Gulf Coast.
B) the Great Lakes.
C) the Southwest.
<span>D) the Pacific Northwest.

If this is your question the answer is C. the southwest.</span>
7 0
3 years ago
a parking lot is going to be 60m wide and 240m long which dimensions could be used please please help
Bezzdna [24]

Answer: The area of the parking lot is 14,400 meters squared.

Explanation:

We have the dimensions of the parking lot.

60m by 240m

The units used here are meters.

Now, if we want to know the area of the parking lot is equal to the product between the length and the width:

A = 60m*240m = 14,400 m^2

The area of the parking lot is 14,400 meters squared.

3 0
3 years ago
Read 2 more answers
A book falls of the table and hits the floor. Is work done? Why?​
morpeh [17]

<u>Yes, work is done when a book falls of the table.</u>

This is because:

When the book falls, it's potential energy is converted into kinetic energy.   As it reaches the floor down, this kinetic energy is converted to heat energy and sound energy due to the impact.

When a force is imposed on an object to cause displacement of that object, work is done on that object. For a force to do work on an object, there should be a displacement and this force should cause the displacement. So here, since the book falls from the table and causes the displacement of the book from the table to the floor. It is said that work is done.

Work can be given by the formula:

W = F • d

where F is the force and d is the displacement.

6 0
2 years ago
Read 2 more answers
Other questions:
  • What does the slope of a distance-versus time graph show you about the motion of an object
    14·1 answer
  • What is the specific heat of silver if the temp ig a 15.4g sample of silver is increased frin 20 degrees celsius to 31.2 degrees
    5·1 answer
  • A string is attached to a ball that has a mass of 0.11 kg. A student pulls up on the string so that the ball accelerates upward
    10·1 answer
  • Can the boiling point of water exceed 100c
    9·1 answer
  • Which process is represented by the PV diagram?
    11·1 answer
  • Which part of the wave has the highest frequency?
    13·2 answers
  • Select the correct answer.
    5·2 answers
  • A 12,500 kg railroad freight car travels on a level track at a speed of 5.2 m/s. It collides and couples with a 22,600 kg second
    8·1 answer
  • Pls give motivation, a paragraph pls! I'll give brainliest to whoever's is the biggest and best! I'll give 50 points, it is for
    13·1 answer
  • Find the resultant of two forces of 4.0N and 6.0N acting at an angle of 160° to each other.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!