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
BabaBlast [244]
3 years ago
13

A 0.023 kg beetle is sitting on a record player 0.15 m from the center of the record. If it takes 0.070 N of force to keep the b

eetle moving in a circle on the record, what is the tangential speed of the beetle?
Physics
2 answers:
gulaghasi [49]3 years ago
6 0
Tangential speed= 0.68 m/s
dusya [7]3 years ago
6 0

Answer:

0.68 m/s

Explanation:

The centripetal force that keeps the beetle moving in circle is given by:

F=m\frac{v^2}{r}

where

m is the mass of the beetle

v is the tangential speed of the beetle

r is the distance of the beetle from the center of the record

In this problem, we know the force (F=0.070 N), the mass of the beetle (m=0.023 kg) and the distance from the center (r=0.15 m), therefore we can re-arrange the equation to find the tangential speed:

v=\sqrt{\frac{Fr}{m}}=\sqrt{\frac{(0.070 N)(0.15 m)}{0.023 kg}}=0.68 m/s

You might be interested in
A 3.00-kg model airplane has velocity components of 5.00 m/s due east and 8.00 m/s due north. What is the plane’s kinetic energy
GalinKa [24]

Answer:

Kinetic energy, E = 133.38 Joules

Explanation:

It is given that,

Mass of the model airplane, m = 3 kg

Velocity component, v₁ = 5 m/s (due east)

Velocity component, v₂ = 8 m/s (due north)

Let v is the resultant of velocity. It is given by :

v=\sqrt{v_1^2+v_2^2}

v=\sqrt{5^2+8^2}=9.43\ m/s

Let E is the kinetic energy of the plane. It is given by :

E=\dfrac{1}{2}mv^2

E=\dfrac{1}{2}\times 3\ kg\times (9.43\ m/s)^2

E = 133.38 Joules

So, the kinetic energy of the plane is 133.38 Joules. Hence, this is the required solution.

5 0
3 years ago
Read 2 more answers
In an open system such as a campfire matter can
eimsori [14]
In an open system such as a campfire, matter can lose particles, gain particles or exchange particles.
4 0
3 years ago
What's the difference between a direct relationship and a positive one?
borishaifa [10]
A positive or direct relationship is one in which the two variables (we will generally call them x and y) move together, that is, they either increase or decrease together. In a negative or indirect relationship, the two variables move in opposite directions, that is, as one increases, the other descremases
5 0
2 years ago
Sean climbs a tower that is 71.3 m high to make a jump with a parachute. The mass of Sean plus the parachute is 81.4 kg. If U =
myrzilka [38]

Answer:

U = 56877.4 J

Explanation:

The potential energy of a body is that which it possesses because it is located at a certain height above the surface of the earth and can be calculated using the following formula:

U = mgh Formula (1)

Where:

U is the potential energy in Joules (J)

m is the mass of the body in kilograms (kg)

g is the acceleration due to gravity (m/s²)

h is the height at which the body is found from the surface of the earth in meters (m)

Data

m= 81.4 kg

g= 9.8 m/s²

h = 71.3 m

Potential energy of Sean and the parachute at the top of the tower

We replace data in the formula (1)

U = m*g*h

U = (81.4 kg)*(9.8 m/s²)*(71.3 m)

U = 56877.4 N*m

U = 56877.4 J

3 0
3 years ago
How would I find the average distance for this?
Maslowich

Answer:

Explanation:add them then divide them by 100 I think

3 0
2 years ago
Read 2 more answers
Other questions:
  • Consider three vectors A⃗ ,B⃗ and C⃗ all lying in the xy plane. Vector A⃗ has length 6.2 and makes an angle of 131 degrees with
    13·1 answer
  • Imagine a Carnot engine has a hot reservoir of 680 K and a cold reservoir of 220 K. What is the efficiency of the engine? 58.3%
    14·2 answers
  • The bird at right watches the waves. If the portion of a wave between two crests passes the pole each second. Wavelength is 1m.
    7·1 answer
  • What is produced when calcium reacts with fluorine in a synthesis reaction
    10·2 answers
  • Convert -90.0°F to -5.0°c to kelvin
    9·1 answer
  • 0.
    6·1 answer
  • a thin prism of 2 degree gives a deviation of 1.7 degree what is the refractive index of the material​
    5·1 answer
  • A 10,000 kg traveling 15m/s strikes a second car which is at rest (not moving). The two stick together and move off with speed o
    15·1 answer
  • Which list correctly names the three types of galaxies?
    6·2 answers
  • the mass of an object is 90 kg calculate weight of the same object on the surface of the moon.(acceleration due to gravity on th
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!