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
tester [92]
3 years ago
15

A stone is tied to s string and whirled around in a circle at constant speed. Is the string more likely to break when the circle

is horizontal or when it is vertical? Account for your answer, assuming the constant speed is the same.
Physics
1 answer:
Bad White [126]3 years ago
3 0

Answer:

Vertical

Explanation:

When the circle is horizontal, the tension in the string is equal to the centripetal force. When the circle is vertical, the tension is greater since it is equal to the centripetal force plus the weight of the stone. Therefore, the string is more likely to break when the circle is vertical

You might be interested in
considere que o calor específico de um material presente nas cinzas seja c=0,8j/gc. Supondo que esse material entre na turbina a
drek231 [11]

Answer:

3120J

Explanation:

Given parameters:

C  = Specific heat capacity  = 0.8J/g°C

Initial temperature  = 20°C

Mass given   = 5g

Final temperature  = 800°C

Unknown:

Energy given to the mass  = ?

Solution:

To find the energy given to the mass, let us simply use the expression below:

          H   =   m   c   ΔT

H is the unknown, the energy supplied

m is the mass of the substance

c is the specific heat capacity

ΔT is the change in temperature

Input the variables;

            H    = 5  x   0.8    x    (800 - 20)  = 3120J

7 0
3 years ago
Assume that a 15-kg ball moving at 8 m/s strikes a wall perpendicularly and rebounds elastically at the same speed. What is the
Aleks [24]
I think u should follow the formulae F=MA. So I think the answer is 120N
5 0
2 years ago
Two tuning forks, 254 Hz. and 260 Hz., are struck simultaneously. How many beats will be heard?
Lisa [10]

The longer you continue to listen, the more beats will be heard.

They'll occur at the rate of (260Hz - 254Hz) = 6 Hz .
 
7 0
3 years ago
Which is a component of pseudoscience, but not science?
quester [9]

Answer:

The statements, observations, beliefs and suppositions all are the components of the pseudoscience.

Explanation:

The claims included in the pseudoscience including the beliefs, statements and practices are claimed to be scientific but these are devoid of any scientific evidences provided by the experimental procedures.

5 0
3 years ago
Danny lowers the sails on his boat. He paddles upstream at 19 km/hr. The current is still running downstream at 15 km/hr. What i
Molodets [167]

Answer:

4 km/hr

Explanation:

The computation of the actual velocity is shown below:

Because the path of its paddles is opposed to the current direction, the real velocity can be determined by deducting the current velocity to its velocity while paddling

So, the actual velocity is

= Upstream - downstream

= 19 km/hr - 15 km/hr

= 4 km/hr

As we can see it is in positive, so it is an upstream direction  

3 0
3 years ago
Other questions:
  • A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into
    11·2 answers
  • What is the momentum of a bus that weighs 13,500,000 grams traveling at 65 mph?
    12·1 answer
  • 100POINTTTTTSSS PLEASE HELP
    6·1 answer
  • you push your little sister on a swing and in 1.6 minutes you make 52 pushes what is the frequency of your swing? answer in unit
    9·1 answer
  • A tow can pull a car out of a ditch in 7.5 seconds. How many work is done if the truck has power of 5500 watts?
    6·1 answer
  • A 2.44×104-kg rocket blasts off vertically from the earth's surface with a constant acceleration. During the motion considered i
    8·1 answer
  • Is carbon a metal that can conduct electricity?
    7·1 answer
  • The velocity of a diver just before hitting the water is -10.9 m/s, where the minus sign indicates that her motion is directly d
    12·1 answer
  • 1. When all the light spectrum colors travel together, they blend together as __________________ light. You do not see the indiv
    12·1 answer
  • Shondra takes notes in class. I. Electromagnetic Waves II. The ability to work - Has many forms - Mechanical III. Potential ener
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!