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
castortr0y [4]
3 years ago
5

Ok...... i need help

Physics
2 answers:
iragen [17]3 years ago
4 0
I can’t see the photo I even tapped on it I am so sorry we’ll have a nice day
ikadub [295]3 years ago
3 0

Answer:

Umm sorry i can't see it clearly.... I tried ;^;

Explanation:

You might be interested in
A horizontal clothesline is tied between 2 poles, 16 meters apart. When a mass of 3 kilograms is tied to the middle of the cloth
Alla [95]

Answer:

The magnitude of the tension on the ends of the clothesline is 41.85 N.

Explanation:

Given that,

Poles = 2

Distance = 16 m

Mass = 3 kg

Sags distance = 3 m

We need to calculate the angle made with vertical by mass

Using formula of angle

\tan\theta=\dfrac{8}{3}

\thta=\tan^{-1}\dfrac{8}{3}

\theta=69.44^{\circ}

We need to calculate the magnitude of the tension on the ends of the clothesline

Using formula of tension

mg=2T\cos\theta

Put the value into the formula

3\times9.8=2T\times\cos69.44

T=\dfrac{3\times9.8}{2\times\cos69.44}

T=41.85\ N  

Hence, The magnitude of the tension on the ends of the clothesline is 41.85 N.

4 0
4 years ago
Read 2 more answers
How much force can a 2.5 kg sledge hammer excerpt on a nail if you can swing the hammer at 20 m/s and the hammer contacts the na
AleksAgata [21]

Answer:

625 N

Explanation:

The impulse given to the nail is equal to the change in momentum of the hammer:

I=F \Delta t=m \Delta v

where

F is the force exerted by the hammer

\Delta t=0.08 s is the time of contact

m=2.5 kg is the mass

\Delta v=20 m/s is the change in velocity of the hammer

Substituting the data and re-arranging the equation, we can find the force:

F=\frac{m \Delta v}{\Delta t}=\frac{(2.5 kg)(20 m/s)}{0.08 s}=625 N

4 0
4 years ago
Which elements have similar behavior? barium silicon aluminum strontium osmium beryllium
tresset_1 [31]
Which elements have similar behavior? 
Barium, strontium, beryllium. 

8 0
3 years ago
Read 2 more answers
A meter-long ruler (meterstick) has a mass of 200 g giving it a weight of 1.96 N (nearly 1/2 pound). A pencil lying flat on a ta
kobusy [5.1K]

Answer:

a) Image attached

b) It is acting CW

c) τ = 0.294N.m

Explanation:

As you can see in the image, the ruler will rotate clockwise.

For the total torque: τ = -W*(0.5 - 0.35)   The distance used is from 35cm to 50cm

τ = -0.294N.m    The magnitude is therefore: 0.294N

7 0
3 years ago
A space vehicle is traveling at 2980 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The
Strike441 [17]

Answer:

3054.4 km/h

Explanation:

Using the conservation of momentum

momentum before separation = 5M × 2980 Km/h where M represent the mass of the module while 4 M represent the mass of the motor

initial momentum = 14900 M km/h

let v be the new speed of the motor so that the

new momentum = 4Mv and the new momentum of the module  = M ( v + 94 km/h )

total momentum = 4Mv + Mv + 93 M = 5 Mv + 93M

initial momentum = final momentum

14900 M km/h = 5 Mv + 93M

14900 km/h = 5v + 93

14900 - 93 = 5v

v = 2961.4 km/h

the speed of the module = 2961.4 + 93 = 3054.4 km/h

8 0
3 years ago
Other questions:
  • An apple in a tree has a gravitational store of 8J. As it falls, it accelerates constantly until it hits the ground. What is the
    14·1 answer
  • Which three elements have strong magnetic properties?
    15·1 answer
  • Use the SI prefixes in Table 3 of this chapter to convert these hypothetical units of measure into appropriate quantities: a. 10
    12·1 answer
  • What happens when a ball colloids with another ball
    8·2 answers
  • Pretty Easy question please answer only 20 minutes left:
    13·1 answer
  • The driver of a car going 86.0 km/h suddenly sees the lights of a barrier 44.0 m ahead. It takes the driver 0.75 s to apply the
    8·1 answer
  • Technician A says that Ohm's law can be used to determine circuit current flow if total circuit resistance and total voltage are
    9·1 answer
  • A physics teacher performed a demonstration for a science class by pulling a crate across the floor
    11·1 answer
  • Galileo is considered the father of modern science. Do you agree with this description? Give reasons for your answer.
    11·1 answer
  • Find equivalent resistance??
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!