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
Ghella [55]
3 years ago
8

An archer pulls her bowstring back 0.376 m by exerting a force that increases uniformly from zero to 251 N. (a) What is the equi

valent spring constant of the bow? N/m (b) How much work does the archer do on the string in drawing the bow? J
Physics
1 answer:
Amanda [17]3 years ago
8 0

Answer:

(A) 667.5 N/m

(B)

Explanation:

(A) Let the spring constant be k.

Using the formula F = kx

k = 251 / 0.376

K = 667.5 N/m

(B)

Work done

W = 0.5 × kx^2

W = 0.5 × 667.5 × 0.376 × 0.376

W = 47.2 J

You might be interested in
How are the components of a heterogeneous mixture distributed?
Lena [83]

Answer:

heterogeneous mixture has components that are not evenly distributed. This means that you can easily distinguish between the different components.

3 0
3 years ago
It is recommended that children have no more than two sets of dental X-rays per year. Although X-rays have many benefits, they c
guapka [62]

Although X-rays have many benefits, they can be dangerous to human health because they are short wavelength, high frequency, with photons sufficiently energetic to damage DNA molecules.

4 0
3 years ago
Read 2 more answers
A vertical spring with spring stiffness constant 305 N/m oscillates with an amplitude of 28.0 cm when 0.235 kg hangs from it. Th
den301095 [7]

Answer:

The function that describe the motion in the time

y (t) = 0.28m * sin ( 36.025 * t)

Explanation:

The angular frequency of oscillation of the spring

w = √k/m

w = √305 N/m / 0.235 kg

w = 36.025 rad / s

To determine the function of the motion knowing as a motion oscillation in a amplitude a frequency

y(t) = A * sin (w t )

So

A = 28.0 cm * 1 m / 100 cm = 0.28 m

So replacing to determine the function of the motion in the time

y (t) = A sin (w t)

y (t) = 0.28m * sin ( 36.025 * t)

7 0
3 years ago
A jet ski accelerates towards a ramp at 2.5 m/s/s for 35 s until it finally flies off the water. Determine the
zlopas [31]

Answer:

1531 m

Explanation:

The motion of the jet ski is an uniformly accelerated motion, so we can find the distance travelled by using the following suvat equation:

s=ut+\frac{1}{2}at^2

where

s is the distance

u is the initial velocity

t is the time

a is the acceleration

For the jet ski in this problem,

a=2.5 m/s^2

t = 35 s

u = 0 (it starts from rest)

Solving for s, we find the distance travelled:

d=0+\frac{1}{2}(2.5)(35)^2=1531 m

8 0
3 years ago
Convert 1.3 km to m
a_sh-v [17]

Answer: 1300m

Explain: from km to m times 1000

8 0
3 years ago
Other questions:
  • How is carbonic acid responsible for the formation of some caves? ASAP PLEASE!!!!
    7·1 answer
  • According to the picture, how would the gravitational potential energy of the car change if its weight was doubled? A) The gravi
    6·2 answers
  • You push very hard on a heavy desk, trying to move it. You do work on the desk:
    6·1 answer
  • 9. A football punter attempts to kick the football so that it lands on the ground 67.0 m from where it is kicked and stays in th
    12·1 answer
  • Which planet is small, with a rocky surface and an atmosphere?
    12·2 answers
  • WILL GIVE BRAINLIEST!
    13·1 answer
  • A student is considering doing a complete repeated measures design experiment involving motor skills. The student's advisor has
    14·1 answer
  • What is the lowest possible temperature
    14·2 answers
  • Calculate the work done by an applied force of 76.0 N on a crate for the following. (Include the sign of the value in your answe
    14·1 answer
  • B c<br>_ - _<br>a b<br>( a=3 b=-5 c=6)​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!