answer.
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
Roman55 [17]
2 years ago
10

Jo, Daniel and Helen are pulling a metal ring. Jo pulls with a force of 100N in one direction and Daniel with a force of 140N in

the opposite direction. If the ring does not move, what force does Helen exert if she pulls the same direction as jo? ​
Physics
1 answer:
Yakvenalex [24]2 years ago
5 0

Answer:

she is pulling with 40 N force

Explanation:

The ring does not move means that the forces are equal.

Let's call Jo's force x

We have the quation

140 = x + 100

x = 40

You might be interested in
A standing wave of the third overtone is induced in a stopped pipe, 2.5 m long. The speed of sound is The frequency of the sound
NemiM [27]

Answer:

f3 = 102 Hz

Explanation:

To find the frequency of the sound produced by the pipe you use the following formula:

f_n=\frac{nv_s}{4L}

n: number of the harmonic = 3

vs: speed of sound = 340 m/s

L: length of the pipe = 2.5 m

You replace the values of n, L and vs in order to calculate the frequency:

f_{3}=\frac{(3)(340m/s)}{4(2.5m)}=102\ Hz

hence, the frequency of the third overtone is 102 Hz

8 0
2 years ago
A block of mass m is pushed up against a spring with spring constant k until the spring has been compressed a distance x from eq
Snowcat [4.5K]

Answer:d

Explanation:

Spring is compressed to a distance of x from its equilibrium position

Work done by block on the spring is equal to change in elastic potential energy

i.e. Work done by block W=\frac{1}{2}kx^2

therefore spring will also done an equal opposite amount of work on the block in the absence of external force

Thus work done by spring on the block W=-\frac{1}{2}kx^2

Thus option d is correct

6 0
2 years ago
Daria was swimming in a friend’s pool yesterday, when she saw that a fly had landed in the water about 5 feet away from her. She
jasenka [17]

Answer:

Daria probably suffers from Entomophobia.

5 0
2 years ago
Consider a force of 750 n (roughly the weight of an adult human). over what area (in cm2) would this force need to be applied in
polet [3.4K]
p = \frac{f}{a}
P=25x10^6 andF=750.So plug in everything to solve for A. which is 3x10^-5m^2 OR 0.3mm^2
7 0
2 years ago
To prevent collisions and violations at intersections that have traffic signals, use the _____ to ensure the intersection is cle
Ann [662]
The answer should be:
<span>To prevent collisions and violations at intersections that have traffic signals, use the d</span>elayed acceleration technique<span> to ensure the intersection is clear before you enter it.
Delayed acceleration technique refers to w</span><span>aiting to go through an intersection until you have a chance to scan for other vehicles.</span>
3 0
2 years ago
Other questions:
  • Juan was wearing a bright red shirt in a very dark room. What color did his shirt appear to the people with him in the room? A)
    6·2 answers
  • Ryan and Becca are moving a folding table out of the sunlight. A cup of lemonade, with the message 0.44 kg is on the table. Becc
    6·1 answer
  • Write a hypothesis about the effect of increasing voltage on the current in the circuit. Use the "if . . . then . . . because .
    10·2 answers
  • two forces are acting on a wheelbarrow. One force is pushing to the right and an equal force is pushing to the left. What can yo
    15·2 answers
  • Some hydrogen gas is enclosed within a chamber being held at 200∘c with a volume of 0.0250 m3. the chamber is fitted with a mova
    9·1 answer
  • At the equator, the earth’s field is essentially horizontal; near the north pole, it is nearly vertical. In between, the angle v
    8·1 answer
  • Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to the next handhold. A 9.4 kg gibbon
    15·1 answer
  • A jet engine gets its thrust by taking in air, heating and compressing it, and
    11·1 answer
  • The flight of a kicked football follows the quadratic function f(x)=−0.02x2+2.2x+2, where f(x) is the vertical distance in feet
    14·1 answer
  • A 500 kg motorcycle accelerates at a rate of 2 m/s .how much force was applied to the motorcycle?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!