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
malfutka [58]
3 years ago
14

10) T F Two unequal weights are connected by a massless string which passes over a frictionless pulley. If the pulley has no app

reciable mass, the tension in the string is the same on both sides of the pulley; but if the pulley has mass, the tension will not be the same on both sides of the pulley.
Physics
2 answers:
neonofarm [45]3 years ago
3 0

Answer:

2

Explanation:

2

swat323 years ago
3 0

Let tension developed in the string be T.

Equations of motion are as follows-

T=M2a

M1g−T=M1a

which gives, a=gM1+M2M1

<h2>for more</h2>

brainly.com/question/12497530

You might be interested in
Speed that does not change is known as the:
svetoff [14.1K]
Answer: Final speed

Explaination: because its final.
4 0
3 years ago
Read 2 more answers
A light wave encounters a partial physical barrier, such as a wall with a hole in it. What is MOST LIKELY to occur?
tatiyna
Most likely, the light wave will be absorbed by the wall. Without any information as to the size and color of the wall, the location and size of the hole, or the location of the light wave, this is a generalized probability problem. For all of the places the light could be, it's more likely that it hits the wall than the hole (if the hole is less than 50% of the area of the wall).
5 0
3 years ago
Read 2 more answers
The tension in the rope is constant and equal to 40 N as the block is pulled. What is the instantaneous power (in W) supplied by
Eduardwww [97]

Complete Question:

A 10 kg block is pulled across a horizontal surface by a rope that is oriented at 60° relative to the horizontal surface.

The tension in the rope is constant and equal to 40 N as the block is pulled. What is the instantaneous power (in W) supplied by the tension in the rope if the block when the block is 5 m away from its starting point? The coefficient of kinetic friction between the block and the floor is 0.2 and you may assume that the block starting at rest.

Answer:

Power = 54.07 W

Explanation:

Mass of the block = 10 kg

Angle made with the horizontal, θ = 60°

Distance covered, d = 5 m

Tension in the rope, T = 40 N

Coefficient of kinetic friction, \mu = 0.2

Let the Normal reaction = N

The weight of the block acting downwards = mg

The vertical resolution of the 40 N force, f_{y} = 40sin \theta

\sum f(y) = 0

N + 40 sin \theta - mg = 0\\N = -40sin60 + 10*9.81 = 0\\N = 63.46 N

\sum f(x) = 0

40 cos 60 - f_{r} - ma = 0\\ f_{r} = \mu N\\ f_{r} = 0.2 * 63.46\\ f_{r} = 12.69 N\\40cos 60 - 12.69-10a = 0\\7.31 = 10a\\a = 0.731 m/s^{2}

v^{2}  = u^{2} + 2as\\u = 0 m/s\\v^{2}  =  2 * 0.731 * 5\\v^{2}  = 7.31\\v = \sqrt{7.31} \\v = 2.704 m/s

Power, P = Fvcos \theta

P = 40 *2.704 cos60\\P = 54.074 W

7 0
3 years ago
HELP DUE IN 5 How does a battery supply energy to a circuit?
Gnoma [55]

Answer: It's C

Explanation:

3 0
2 years ago
You decide to ride your bike for 30 minutes, raising your heart rate to the middle of your target heart rate zone. What type of
a_sh-v [17]
It would have to be cardio i think not totally sure
4 0
3 years ago
Read 2 more answers
Other questions:
  • During which change of state do atoms lose energy? sublimation freezing boiling melting
    11·2 answers
  • Physics. I need help​
    8·1 answer
  • Point charges q1=+2.00μC and q2=−2.00μC are placed at adjacent corners of a square for which the length of each side is 5.00 cm
    14·1 answer
  • At a pressure of one billionth (10–9) of atmospheric pressure, there are about 2.7 × 1010 molecules in one cubic centimeter of a
    6·1 answer
  • Two waves are in phase if they are of the same ___________.
    8·2 answers
  • When you hold a rectangular object how does the area of the side that is resting on your hand affects the pressure and the force
    6·1 answer
  • Whether or not bricks slide down the bed of the dump truck depends on. A) the mass of the bricks. B) the angle of the bed. C) th
    9·1 answer
  • Which of the following is not included in impact damage?
    7·2 answers
  • What is an internal resistance?
    13·1 answer
  • A solid weighs 237.5 g in air and 12.5 g in a liquid in which it is wholly submerged. The density of the liquid is 900 kg/m³.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!