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
Nezavi [6.7K]
3 years ago
6

What is another example of convection?

Physics
2 answers:
algol [13]3 years ago
3 0

Answer:

Explanationcccvc:

Nonamiya [84]3 years ago
3 0

Answer:

A

Explanation:

You might be interested in
A 1056-hertz tuning fork is struck at the same time as a note on the piano and you hear 2 beats/second. You tighten the piano st
elena-14-01-66 [18.8K]

Answer:

The frequency of the piano string is <em>1059 Hz</em>.

Explanation:

The frequency beat (fb), 2 beats/second, is the absolute difference between the frequency of the tuning fork (1056 Hz) and the frequency of the piano string.

As the piano string gets tightened, the frequency beat becomes 3 beats/second.

Therefore,

fb = fb = fpiano - ftuning fork\\ 3 Hz=fpiano-1056Hz\\ fpiano=1056Hz+3Hz\\ fpiano=1059Hz

6 0
4 years ago
A player kicks a soccer ball in a high arc toward the opponent's goal. When the soccer ball reaches its maximum height, how does
Artyom0805 [142]

Answer:

The speed of the soccer ball at height point is less than its initial speed

Explanation:

The initial velocity of the soccer can be written in vector form as

v_{i = v cos θ î + v sin θ j

where v_{i  is initial velocity of the ball

           v is the initial speed of the ball

Assume soccer ball is kicked at an angle θ with an horizontal and initial speed vm/s. Its horizontal component will be as,

v_{x} = v cos θ

v_{y} = v sin θ

At the maximum height, the vertical component becomes zero. therefore, the velocity of the soccer at the maximum point can be written as,

v_{m} = v cos θ j

where, v_{m} is velocity of the soccer ball at maximum height

5 0
4 years ago
Newton s third law of motion states that every action has an __________ but __________ reaction.
Margaret [11]
Newton´s thrid law of motion states that:
Every action has an equal and opposite reaction.

c. equal, opposite.
3 0
4 years ago
A speeding car traveling at 24.8 m/s passes a police car that is at rest. The police car begins its pursuit at the instant the s
marusya05 [52]

Answer:

the acceleration required is 1.37m/s^2

Explanation:

The car is having a constant velocity movement, so if we calculate the time to reach 897m, we can use it to find the acceleration the policeman need to apply to reach the car.

x=v*t\\t=\frac{x}{v}\\t=\frac{897m}{24.8m/s}\\t=36.17s

the policeman is traveling with a constant acceleration starting from rest so:

x=\frac{1}{2}*a*t^2\\\\a=\frac{2*x}{t^2}\\\\a=1.37 m/s2

7 0
3 years ago
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.
Alja [10]

Answer:

Part a)

M = 7.25 \times 10^{25} kg

Part b)

M = 2\times 10^{30} kg

Explanation:

Part a)

As we know that the diameter of the planet is given as

d = 1.8 \times 10^7 m

now the radius of the planet is given as

r = 9 \times 10^6 m

now we know that the acceleration due to gravity of the planet is given by the equation

g = \frac{GM}{r^2}

here we know that

g = 59.7 m/s^2

now from above equation we have

59.7 = \frac{(6.67 \times 10^{-11})M}{(9\times 10^6)^2}

now we have

M = 7.25 \times 10^{25} kg

Part b)

Now by kepler's law we know that

time period of revolution of planet about the star is given as

T = 2\pi \sqrt{\frac{r^3}{GM}}

so we have

\frac{T_1^2}{T_2^2} = \frac{r_1^3}{r_2^3}

now we have

\frac{1^2}{402^2} = \frac{(1.5 \times 10^11)^3}{r^3}}

rr = 8.17 \times 10^{12} m

mula of time period

402\times (365\times 24 \times 3600) = 2\pi \sqrt{\frac{(8.17\times 10^12)^3}{(6.67\times 10^{-11})M}}

Now we have

M = 2\times 10^{30} kg

7 0
3 years ago
Other questions:
  • The work a force does on an object depends on
    14·2 answers
  • 2. Calculate the distance between the Sun and Jupiter of the mass of the Sun is 1.99 x 10^30kg and the mass of Jupiter is 1.89 x
    12·1 answer
  • How many vibrations per second are associated with a 101-mhz radio wave?
    15·1 answer
  • Thermoelectric power plants are used to generate electricity. Which of these statements best describes the impact of a thermoele
    10·2 answers
  • Insert
    9·1 answer
  • How do Swati and Banks adjust their body position during a skydiving jump so they can fall at the same rate?
    7·1 answer
  • I really need help this was due Friday! I will mark brainiest!
    12·1 answer
  • If the kinetic energy of a particle is doubled, by what factor has its speed increased?
    11·2 answers
  • What property of objects is best measured by their capacitance?
    11·1 answer
  • What type of Energy is an egg that's about to fall out of a nest*
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!