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
Irina18 [472]
3 years ago
11

Dominic is the star discus thrower on South's varsity track and field team. In last year's regional competition, Dominic whirled

the 1.6 kg discus in a circle with a radius of 1.1m, ultimately reaching a speed of 52 m/s before launch. Determine the net force acting upon the discus in the moments before launch.
Physics
1 answer:
Svetllana [295]3 years ago
3 0

Answer:

The net force is 3933.1 N

Explanation:

Centripetal force (F) = mv^2/r

m is the mass of the discus = 1.6 kg

v is the speed of the discus = 52 m/s

r is the radius of the circle = 1.1 m

F = 1.6×52^2/1.1 = 3933.1 N

You might be interested in
Which word in the sentence is a helping verb Jamie could probably repair his bike by himself
Vesna [10]
Helping verbs come before the main verb, the main verb in the sentence is repair therefor the helping verb would be could.
6 0
3 years ago
A rope of total mass m hnd length L is suspended vertically with an object of mass M suspended from the lower end. Find an expre
pantera1 [17]

Answer:

Part a)

v = \sqrt{xg + \frac{MLg}{m}}

Part b)

t = 12 s

Explanation:

Part a)

Tension in the rope at a distance x from the lower end is given as

T = \frac{m}{L}xg + Mg

so the speed of the wave at that position is given as

v = \sqrt{\frac{T}{\mu}}

here we know that

\mu = \frac{m}{L}

now we have

v = \sqrt{\frac{ \frac{m}{L}xg + Mg}{m/L}

v = \sqrt{xg + \frac{MLg}{m}}

Part b)

time taken by the wave to reach the top is given as

t = \int \frac{dx}{\sqrt{xg + \frac{MLg}{m}}}

t = \frac{1}{g}(2\sqrt{xg + \frac{MLg}{m}})

t = \frac{2}{9.8}(\sqrt{(39.2\times 9.8) + \frac{8(39.2)(9.8)}{1}})

t = 12 s

4 0
3 years ago
Because the Triple Beam Balance is zeroed before being put into use, it measures
pickupchik [31]

Answer:

B

Explanation:

8 0
2 years ago
What type of material is good at transferring heat?
MatroZZZ [7]
The answer is A

Materials that are good conductors of thermal energy are called thermal conductors. Metals are very good thermal conductors. Materials that are poor conductors of thermal energy are called thermal insulators. Gases such as air and materials such as plastic and wood are thermal insulators
5 0
3 years ago
write a one or two summary paragraph discussing this experiment and the results use tye following questions 1 according to your
Monica [59]

Answer:heed

Explanation:

heed knows how to divide.

8 0
2 years ago
Other questions:
  • In a shuffleboard game, the puck slides a total of 12 m on a horizontal surface before coming to rest. if the coefficient of kin
    10·1 answer
  • Atoms with electronegativity differences below 0.4 generally form covalent<br>bonds. True or False​
    9·2 answers
  • The frequency of the longitudinal standing wave shown in the drawing is 440 hz. the tube is open at both ends. what is the funda
    14·1 answer
  • Heat likes to remain <br> ONMFRIU ← Whats that unscrambled?
    7·1 answer
  • How does incident light that falls on an object affect the motion of electrons in the atoms of the object?
    12·1 answer
  • 6. Dan wants to create acceleration. He
    12·1 answer
  • HNO3 (aq) + H20 (1) ► NO3- (aq) + H30+ (aq)
    6·1 answer
  • What is the most common kind of element in the solar wind?
    12·1 answer
  • Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s
    9·1 answer
  • A man kicks the 150-g ball such that it leaves the ground at an angle of 60° and strikes the ground at the same elevation a dist
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!