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
3241004551 [841]
3 years ago
7

When an object is in orbit, it is falling at the same rate at which the Earth is curving. Please select the best answer from the

choices provided
a. True
b. False
Physics
1 answer:
olga2289 [7]3 years ago
7 0

The statement “When an object is in orbit, it is falling at the same rate at which the Earth is curving” is true. The speed of a satellite orbiting the earth depends only on the mass of the earth and the mass of the satellite.

You might be interested in
Although sunlight contains all colors of light, the brightest color is
dalvyx [7]
The peak output of our sun is between the yellow-green band.  
8 0
3 years ago
Define what is physics​
Lisa [10]

In my own words, I would say that physics is an area of science that seeks to explain and understand the fundamental nature of the dynamics of objects, essentially defining how objects can interact, in space and in time.

5 0
2 years ago
Read 2 more answers
Question 1 of 4 Attempt 4 The acceleration due to gravity, ???? , is constant at sea level on the Earth's surface. However, the
Evgen [1.6K]

Answer:

g(h) = g ( 1 - 2(h/R) )

<em>*At first order on h/R*</em>

Explanation:

Hi!

We can derive this expression for distances h small compared to the earth's radius R.

In order to do this, we must expand the newton's law of universal gravitation around r=R

Remember that this law is:

F = G \frac{m_1m_2}{r^2}

In the present case m1 will be the mass of the earth.

Additionally, if we remember Newton's second law for the mass m2 (with m2 constant):

F = m_2a

Therefore, we can see that

a(r) = G \frac{m_1}{r^2}

With a the acceleration due to the earth's mass.

Now, the taylor series is going to be (at first order in h/R):

a(R+h) \approx a(R) + h \frac{da(r)}{dr}_{r=R}

a(R) is actually the constant acceleration at sea level

and

a(R) =G \frac{m_1}{R^2} \\ \frac{da(r)}{dr}_{r=R} = -2 G\frac{m_1}{R^3}

Therefore:

a(R+h) \approx G\frac{m_1}{R^2} -2G\frac{m_1}{R^2} \frac{h}{R} = g(1-2\frac{h}{R})

Consider that the error in this expresion is quadratic in (h/R), and to consider quadratic correctiosn you must expand the taylor series to the next power:

a(R+h) \approx a(R) + h \frac{da(r)}{dr}_{r=R} + \frac{h^2}{2!} \frac{d^2a(r)}{dr^2}_{r=R}

6 0
3 years ago
Read 2 more answers
A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude
Pepsi [2]
The energy of the system is E=5.5 J. This energy is the  same at every moment of the oscillation. When the stretch x of the spring is maximum (so, when the stretch is equal to the amplitude: x=A) the velocity of the spring is zero, so all this energy is just elastic potential energy of the spring:
E= \frac{1}{2}kA^2
From which we find
A= \sqrt{ \frac{2E}{k} }= \sqrt{ \frac{2 \cdot 5.5 J}{1200 N/m} }=0.096 m
4 0
3 years ago
A 4.6 g lead bullet moving at 278 m/s strikes a steel plate and stops. If all its kinetic energy is converted to thermal energy
iren2701 [21]

Answer:

ΔT = 302 °c

Explanation:

mass (m) = 4.6 g = 0.0046 kg

velocity (v) = 278 m/s

specific heat of lead (c) = 128 J/kg. °c

kinetic energy = 0.5 mx v^{2}

kinetic energy = 0.5 x 0.0046 x 278^{2}

kinetic energy = 177.8 J

since all the kinetic energy is converted to thermal energy,

kinetic energy = thermal energy (E) = 177.8 J

thermal energy = m x c x ΔT

where ΔT is the temperature change

177.8 = 0.0046 x 128 x ΔT

ΔT = 177.8 / 0.59

ΔT = 302 °c

3 0
3 years ago
Other questions:
  • You are an industrial engineer with a shipping company. As part of the package- handling system, a small box with mass 1.60 kg i
    9·1 answer
  • Why does an ice cube melt when you hold it in your hand? Question 1 options: Heat from the ice cube is transferred to your hand.
    13·2 answers
  • calculate the displacement of a mouse walking along a ruler, if it begins at the location x=5cm, and then walks yo x=12cm
    7·1 answer
  • Suppose that when you ride on your 7.50 kg bike the weight of you and the bike is supported equally by the two tires. If the gau
    7·1 answer
  • Identify the two pieces of information you need to know the velocity of an object
    15·1 answer
  • What is the relationship between the angle of an incline and the acceleration of an object moving down the incline? How would yo
    14·1 answer
  • Explain why a valve would last longer in the pulmonary position than in the aortic position
    12·1 answer
  • 6. In an integrated circuit, each wafer is cut into sections, which
    8·1 answer
  • You are walking on a moving walkway in the airport. The length of the walkway is 59.1 m. If your velocity relative to the walkwa
    14·1 answer
  • Explain 3 dangers of electrostatics in detail
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!