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
Kisachek [45]
3 years ago
14

A 15.9 kg concrete block is being pulled 0.90 m to the right In 2.5 s

Physics
1 answer:
storchak [24]3 years ago
8 0

Answer:

the average is 0.36 m/s

You might be interested in
8. An effort force of 15 Newtons is applied to an ideal pulley system to lift up a 16 Newton object. If the effort force is exer
Sonbull [250]

Answer:

the distance that the object is raised above its initial position is 5.625 m.​

Explanation:

Given;

applied effort, E = 15 N

load lifted by the ideal pulley system, L = 16 N

distance moved by the effort, d₁ = 6 m

let the distance moved by the object = d₂

For an ideal machine, the mechanical advantage is equal to the velocity ratio of the machine.

M.A = V.R

M.A = \frac{Load}{Effort} = \frac{L}{E} \\\\V.R = \frac{disatnce \ moved \  by \ the \ effort}{disatnce \ moved \  by \ the \ load} = \frac{d_1}{d_2} \\\\For \ ideal \ machine; \ M.A = V.R\\\\\frac{L}{E} = \frac{d_1}{d_2} \\\\d_2 = \frac{E \times d_1}{L} \\\\d_2 = \frac{15 \times 6}{16} \\\\d_2 = 5.625 \ m

Therefore, the distance that the object is raised above its initial position is 5.625 m.​

3 0
3 years ago
A 10 kg bowling ball sits at the top of a 10 m hill and then slides down its icy hillside.
Nataly_w [17]
We need more informtion
5 0
3 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzzz helpppp
satela [25.4K]
It’s c, the toy car changes direction
7 0
3 years ago
Read 2 more answers
Which type of rays have a wavelength shorter than that of visible light?
aniked [119]

Answer:

c

Explanation:

wavelength shorter means energy is higher

the wavelength

radio waves>microwave>infrared rays>gamma rays

6 0
2 years ago
An elevator is moving down with an acceleration of 3.36 m/s2.
sergeinik [125]

Answer : 413.44N

Here it is given that an elevator is moving down with an acceleration of 3.36 m/s² . And we are interested in finding out the apparent weight of a 64.2 kg man . For the diagram refer to the attachment .

  • From the elevator's frame ( non inertial frame of reference) , we would have to think of a pseudo force.
  • The direction of this force is opposite to the direction of acceleration the frame and its magnitude is equal to the product of mass of the concerned body with the acceleration of the frame .
  • When a elevator accelerates down , the weight recorded is less than the actual weight .

From the Free body diagram ,

\sf\longrightarrow Weight = mg - ma \\

\sf\longrightarrow Weight = m ( g - a ) \\

  • Mass of the man = 64.2 kg

\sf\longrightarrow Weight = 64.2( 9.8 - 3.36) N\\

\sf\longrightarrow Weight = 64.2 * 6.44 N\\

\sf\longrightarrow \underline{\boxed{\bf Weight_{apparent}= 413.44 N }} \\

5 0
2 years ago
Other questions:
  • The energy change in an endothermic reaction is: A. Internal B. External C. Negative D. Positive
    12·1 answer
  • Which state of matter has particles with the greatest amount of kinetic energy?
    9·1 answer
  • Which aspect of relativity makes faster-than-light travel theoretically possible?
    5·1 answer
  • What two fundamental units that are not vector quantities
    5·2 answers
  • Which is a possible measurement of the momentum of a moving object?
    6·2 answers
  • If EMS waves are transverse, what conclusion can you make concerning the distances they can travel?
    5·1 answer
  • An object moving at a constant velocity will always have a what
    10·2 answers
  • PLEASE HELP MEE I REALLY NEED IT
    15·1 answer
  • What best decribes the science method
    10·2 answers
  • if the current through a resistor is increased by a factor of 4, how does this affect the power dissipated?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!