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
Mariulka [41]
3 years ago
6

Difference between velocity ratio and efficiency​

Physics
1 answer:
Naddik [55]3 years ago
5 0

Explanation:

Velocity ratio of simple machine is the ratio of distance travelled by effort to the distance travelled by load in the machine. The efficiency of a simple machine is defined as the ratio of useful work done by machine (output work) to the total work put into the machine (input work).

Mark me as brainliest please

You might be interested in
A constant force of 11.8 N in the positive x direction acts on a 4.7-kg object as it moves from the origin to the point (1.6i –
zhenek [66]

Answer:

W = 18.88 J

Explanation:

Given that,

Constant force, F = 11.8 N (in +x direction)

Mass of an object, m = 4.7 kg

The object moves from the origin to the point (1.6i – 4.6j) m

We need to find the work is done by the given force during this displacement. The work done by an object is given by the formula as follows :

W=F{\cdot} d\\\\W=(11.8i){\cdot} (1.6i-4.6j)\\\\=11.8\times 1.6\\\\=18.88\ J

So, the work done by the given force is 18.88 J.

5 0
3 years ago
A softball needs to hit a bucket 43. 0 m away on flat ground. if it is aimed at 72. 0, what must its inital velocity be?
ddd [48]

Answer:

This can easily be solved using the "range" formula

R = V0^2 * sin 2θ / g

V0^2 = g R / sin 2θ = 9.80 * 43 / sin 144 = 717 m^2/s^2

V0 = 26.8 m/s

3 0
1 year ago
A car travels from point A to point B in 3.991 hours and returns back to point A in 4.109 hours. Points A and B are 134.2 miles
crimeas [40]

Answer:

gjsgjdcjpdcojdcoj gud gud gud gud gud gud gud gud gud gud gud gud gud gud get home h hum h hum hth hai h h g c b c b v g c h x corolla

8 0
2 years ago
Group of physics students are asked to demonstrate Ohm’s Law in parallel circuits.  Using their knowledge of Ohm’s Law and the r
astra-53 [7]

The student’s suggestion who provides enough evidence to be able to determine the value of each resistor is student D.

<h3>What is current?</h3>

The current is the stream of charges which flow inside the conductors when connected across the end of voltage.

For the given set of parallel resistors, we need to find the resistance of each resistor.

From the Ohm's law, V =IR

R = V/I

Resistance value depends upon the voltage difference across the resistor and the current flowing through that resistance.

Thus, the student D gives enough evidence to find resistance of the circuit is

Learn more about current.

brainly.com/question/10677063

#SPJ1

8 0
2 years ago
______________ waves move perpendicular to their energy transport, while ____________ waves move parallel to their energy transp
Mademuasel [1]
<span>Transverse waves waves move perpendicular to their energy transport, while </span><span>Longitudinal waves</span> waves move parallel to their energy transport.


4 0
3 years ago
Other questions:
  • Four identical pallets of bricks, each with a mass of 40 kg with a square cross-sectional area of 0.50 m2, are stacked on the fl
    10·1 answer
  • An uncharged pith ball is suspended by a nylon fiber. When a negatively charged rubber rod is brought nearby, without touching i
    13·1 answer
  • Our Sun is a G2V star with absolute magnitude 4.8. Suppose that a star of spectral type G2V is observed to have apparent magnitu
    11·1 answer
  • In a uniform electric field what factors does the electrical potential energy depend on
    9·1 answer
  • You should first _____ if your accelerator gets stuck.
    8·1 answer
  • A charged object is suspended motionless in the air by the gravitational force pulling it down and an electric force pushing it
    6·1 answer
  • Calculate the speed in m/s at which the moon revolves around the Earth. Note: the orbit is nearly circular.
    14·2 answers
  • An electron on the axis of an electric dipole is 26 nm from the center of the dipole. What is the magnitude of the electrostatic
    5·1 answer
  • A rock falls 15 m. what is the displacement of the rock
    11·2 answers
  • The maximum kinetic energy of electrons ejected from a sheet of uranium exposed to 250 nm ultraviolet light is 1.33 EV.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!