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
Semmy [17]
2 years ago
9

Help wanted on this question.

Physics
2 answers:
IceJOKER [234]2 years ago
6 0
9.807 newts so c 10!!!
Dahasolnce [82]2 years ago
5 0
THE AWNSER TO YOUR QUESTION IS A. GOOD LUCK AND HAVE A GOOD DAY
You might be interested in
An observer on Earth sees rocket 1 leave Earth and travel toward Planet X at 0.3c. The observer on Earth also sees that Planet X
Verizon [17]

Answer:

0.625 c

Explanation:

Relative speed of a body may be defined as the speed of one body with respect to some other or the speed of one body in comparison to the speed of second body.

In the context,

The relative speed of body 2 with respect to body 1 can be expressed as :

$u'=\frac{u-v}{1-\frac{uv}{c^2}}$

Speed of rocket 1 with respect to rocket 2 :

$u' = \frac{0.4 c- (-0.3 c)}{1-\frac{(0.4 c)(-0.3 c)}{c^2}}$

$u' = \frac{0.7 c}{1.12}$

u'=0.625 c

Therefore, the speed of rocket 1 according to an observer on rocket 2 is 0.625 c

5 0
3 years ago
Giving brainliest!! if you answer correctly :) (30pts)
AnnZ [28]

Answer:

32000joule.

Explanation:

given

mass. (m)=160kg

speed (v)=20m/s

now

kinetic energy =1/2 (mv²)=1/2 ×{160×20²}=32000joule.

8 0
3 years ago
Read 2 more answers
Can somebody help me on finding the constants if this experiment?
ki77a [65]
The constants could be the day because the experiment is all on the same day or the person throwing the pumpkin because it will always be the same perosn
8 0
3 years ago
(a) Calculate the magnitude of the gravitational force exerted on a 497-kg satellite that is a distance of 1.92 earth radii from
Setler [38]

Answer:

a)  1321.45 N

b)  1321.45 N

c)  2.66 m/s^2

d) 2.21*10^-22 m/s^2

Explanation:

Hello!

First of all, we need to remember the gravitational law:

F = G \frac{m_1 m_2}{r^2}

Were

   G = 6.67428*10^-11 N(m/kg)^2

   m1 and m2 are the masses of the objects

   r is the distance between the objects.

In the present case

m1 = earth's mass =  5.9742*10^24 kg

m2 = 497 kg

r = 1.92 earth radii = 1.92 * (6378140 m) = 1.2246*10^7 m

Replacing all these values on the gravitational law, we get:

F = 1321.45 N

a)  and  b)

Both bodies will feel a force with the same magnitude 1321.45 N but directed in opposite directions.

The acceleration can be calculated dividing the force by the mass of the object

c)

a_satellite = F/m_satellite = ( 1321.45 N)/(497 kg)

a_satellite = 2.66 m/s^2

d)

a_earth = F/earth's mass = (1321.45 N)/( 5.9742*10^24 kg)

a_earth = 2.21*10^-22 m/s^2

8 0
2 years ago
A spring stretches from an initial height of 5 cm to a final stretch of 10 cm. the spring constant is 800 n/m.How much work was
Aleks04 [339]

Answer:

.

Explanation:

F = kx so k = 800/((10-5)/100) = 16000 N/m

W = 1/2 kx^2 = 1/2 * 16000 * .05^2 = 20 J.

(sorry if it's wrong)

3 0
2 years ago
Other questions:
  • This element is added to table salt to prevent the development of goiter
    5·2 answers
  • A medicine ball has a mass of 5 kg and is thrown with a speed of 2 m/s. what is its kinetic energy?
    8·1 answer
  • A diffraction grating is to be used to find the wavelength of the emission spectrum of a gas. The grating spacing is not known,
    9·1 answer
  • A ball is thrown upward. As it passes 5.0 m height it is traveling at 4.0 m/s up. What was its initial upward velocity? (a) 7.0
    13·1 answer
  • The usefulness of blotting techniques in molecular biology is that
    12·1 answer
  • Dave throws a 10 kg bowling ball straight up in the air. At the very tippy-top of its path, what is it's momentum?
    15·1 answer
  • Diana would like to observe the movements of a paramecium. Which of the following tools would be best for Diana to use? A. hand
    6·2 answers
  • A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that
    10·1 answer
  • Section B is where I need help with
    14·1 answer
  • An old lorry is 20% efficient at converting the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!