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
Marizza181 [45]
2 years ago
5

Q2. A certain machine is used to lift a load of 500N when an effort of 50N is applied to the machine the load is raised by 10m a

nd effort is moved by 60m that is the efficiency of the machine? (1. sp)​
Physics
2 answers:
Natalija [7]2 years ago
8 0

Answer:

2%

Explanation:

E=l/E x r/R x100%

=5000/50 x 0.1/0.6 x100

=2% or 166.7

White raven [17]2 years ago
6 0
Answer:
166.667%
Explanation:
MA = 500/50
. = 10
VR=60/10
=6
Efficiency=10/6 X 100%
=166.667
You might be interested in
During which stage of sleep does most dreaming occur
sukhopar [10]
The answer is a rem sleep
7 0
3 years ago
Read 2 more answers
Thomson's experiments accounted for: the mass of the electron the fundamental charge the force on a current-carrying wire the el
gogolik [260]

Thomson experiment he calculated the charge to mass ratio just be passing the fundamental charge through a tube

He calculated the charge to mass ratio just by finding the deflection of charge while it is passing through the constant electric field

so here we will use the deflection as following

let say it passes the field of length "L"

so here we have

t = \frac{L}{v}

now in the same time if it deflect by some distance

\delta y = \frac{1}{2}at^2

\delta y = \frac{1}{2}{eE}{m}t^2

now by solving this equation we can find e/m ratio

so here correct answer will be

the electron's charge-to-mass ratio

7 0
3 years ago
Read 2 more answers
If the period of a wave is 0.05 s, then what is its frequency?
yKpoI14uk [10]
Frequency = 1/time period = 1/0.05 = 20s^-1. 
8 0
3 years ago
Read 2 more answers
Calculate the heat energy released when 13.3 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point.C
dmitriy555 [2]

Answer:

-270.321012\ J

Explanation:

C_v = Heat capacity of Hg = 28 J/mol

\Delta T = Change in temperature = (234.32-(273.15+25))

\Delta H_{f} = Enthalpy of fusion = 2.29 kJ/mol

The number of moles is given by

n=13.3\times \dfrac{1}{200.59}\\\Rightarrow n=0.0663\ molHg

Heat is given by

Q_1=nC_v\Delta T\\\Rightarrow Q_1=0.0663\times 28\times (234.32-(273.15+25))\\\Rightarrow Q_1=-118.494012\ J

Heat released is given by

Q_2=-n\Delta H_{f}\\\Rightarrow Q_2=-0.0663\times 2.29\times 10^3\\\Rightarrow Q_2=-151.827\ J

Total heat is given by

Q=Q_1+Q_2\\\Rightarrow Q=-118.494012+(-151.827)\\\Rightarrow Q=-270.321012\ J

The total heat released is -270.321012\ J

4 0
3 years ago
The 0.41-kg cup of a James Bond anti-Martini-Maker is attached to a spring of spring constant 110 N/m. The cup is displaced hori
ehidna [41]

Answer:

Option B is the correct answer.

Explanation:

Period of a spring is given by the expression

            T=2\pi \sqrt{\frac{m}{k}}

Here, spring constant, k = 110 N/m

         Mass = 0.41 kg

Substituting,

        T=2\pi \sqrt{\frac{m}{k}}=2\pi \sqrt{\frac{0.41}{110}}=0.38s

Option B is the correct answer.

5 0
3 years ago
Other questions:
  • The drawing shows a model for the motion of the human forearm in throwing a dart. Because of the force M applied by the triceps
    11·1 answer
  • A static charge that is produced by a nearby objet is an?
    5·1 answer
  •  In the early 19th century Christian Doppler, an Austrian physicist, proposed a theory regarding the properties of a moving sou
    15·2 answers
  • Three taxi cabs make a complete trip from downtown to the airport and back in 15 , 33 and 55 minutes, respectively. If all three
    11·1 answer
  • A ball is thrown vertically downwards with a speed 7.3 m/s from the top of a 51 m tall building. With what speed will it hit the
    10·2 answers
  • A 910 kg car is approaching a loop-the-loop. The loop has a diameter of 50 m. Determine the minimum speed the car must have at t
    10·1 answer
  • An object is in circular motion how will the object behave if the centipetal force is removed
    11·1 answer
  • What is the period of a water wave with a frequency of 0.5 Hz?
    12·1 answer
  • Suppose that the oil in a hydraulic hoist is replaced by air. Would the hoist still operate as well? Explain.
    10·1 answer
  • What is the primary way the metamorphic rock formed
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!