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
Akimi4 [234]
3 years ago
7

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30 Newtons. What must the inp

ut force be?15 N20 N40 N60 N
Physics
1 answer:
slavikrds [6]3 years ago
5 0

The correct answer is 15 N.

Explanation:

The mechanical advantage of a machine is calculated as,

M.A = Output Force/ Input Force

Given, mechanical advantage=2

Output force = 30 N

Substituting the values,

2=\frac{30}{I.F}

Input force = 15 N

∴ The input force must be 15 N.

You might be interested in
A metallic circular plate with radius r is fixed to a tabletop. An identical circular plate supported from above by a cable is f
Vinil7 [7]

Answer:

Solution is given in the attachments,below.

7 0
3 years ago
The slope of a velocity versus time graph gives
Marina86 [1]

Explanation:

Average of acceleration

4 0
3 years ago
A baseball pitcher throws a ball at 97.0 mi/h in the horizontal direction. How far does the ball fall vertically by the time it
mario62 [17]

Answer:

Explanation:

1 mile=5280 ft

1 hour=3600 seconds

Changing speed from mi/h to ft/s

97 mi/h \times \frac {5280}{3600}=142.2666667 ft/s\approx 142.27 ft/s

Time of flight, t=\frac {distance}{speed}=\frac {60.5}{142.27}=0.425257732 s\approx 0.425 s

From fundamental kinematics equations

h=0.5gt^{2} where g is acceleration due to gravity whose value is taken as 32.2 ft/s2 and h is the distance

By substitution

h=0.5\times 32.2\times 0.425^{2}=2.9080625 m\approx 2.91 m

7 0
3 years ago
Based on the replacement reaction, what would the products of the reaction be?
fredd [130]

Answer:

Explanation:

                    BeSO₄ + 2NH₄OH → Be(OH)₂ + (NH₄)₂SO₄

In a replacement reaction, an atom or ion substitutes or replaces another in a reaction. We can have single replacement or double replacement reaction.

The above is a double replacement reaction. In this type of reaction, partners are exchanged to form compounds. In a single replacement, one substance is replacing another.

8 0
3 years ago
Read 2 more answers
White light is shining on a green grape. The grape __.
I am Lyosha [343]
White light is shining on a green grape. The grape would absorb all colors except green and will reflect the green color around and into our eyes. That's why the grape is green. Hope this helped!
5 0
3 years ago
Read 2 more answers
Other questions:
  • A cleaver physics professor wants to create a situation where a block starts from rest at the top of a 31.0° inclined plane and
    13·1 answer
  • 1. In a(n) ______________________ circuit, all parts are connected one after another along one path.
    5·2 answers
  • Question 4 (20 points)
    8·2 answers
  • Alex and Izzy are conducting an experiment to see what natural material could best be used for insulating pipes to keep them fro
    7·1 answer
  • Galileo held that measurements of time were _____ and that measurements of distance were ______. absolute; relative
    9·1 answer
  • Molecular orbital theory correctly predicts paramagnetism of oxygen gas. true or false
    15·1 answer
  • A small rocket to gather weather data is launched straight up. Several seconds into the flight, its velocity is 140 m/s and it i
    7·1 answer
  • How much power is generated if 375 J of work is done in 15 s?
    12·1 answer
  • What is the acceleration at 3 seconds?<br><br> Please explain your answer. Thank you :]
    12·1 answer
  • Draw suitable diagrams where necessary
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!