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
melomori [17]
3 years ago
5

The force of gravity acting on a child's mass on earth is 490 newtons. what's the child's mass?

Physics
2 answers:
UNO [17]3 years ago
6 0
F = m • a

What we know:
- Gravity: 9.8 m/s
- Force: 490 N

Equation derived:
m = F/a
m = 490/9.8
= 50 kg
disa [49]3 years ago
6 0
50 kg because e = mc2

You might be interested in
Ans of this question A test charge of 1 couloumb moved from 30cm against the field of intensity 50N/c find the energy store in i
UkoKoshka [18]

Answer:

A. Zero

Explanation:

Given data,

The charge of the test charge, q = 1 C

The distance the charge moved against the filed of intensity, x = 30 cm

                                                                                                        = 0.3 m

The electric field intensity, E = 50 N/C

The energy stored in the charge at 0.3 m is given by the formula,

                                V = k q/r

Where,                        

                                     = 9 x 10⁹ Nm²C⁻²

The charge is moved from the potential V₁ to V₂ at 30 cm

Substituting the given values in the above equation

                            V₁ = 9 x 10⁹ x 30 / 0.3

                                =  1.5 x 10¹² J

And,

                            V₂ = 1.5 x 10¹² J

The energy stored in it is,

                             W = V₂ - V₁

                                  = 0

Hence, the energy stored in the charge is, W = 0        

6 0
3 years ago
Please help.. urgent Which statement is equivalent to Newton's first law? a. 15,300 N b. 1.20*10^3 N c. 2,030 N d. 1,560 N
taurus [48]
According to Newton laws of motion, 
F = m*a
Here, m = 1,560 Kg
a = 1.30 m/s²

Substitute their values, 
F = 1,560 * 1.30
F = 2028 N ~ 2030 N  [ Closest value ]

In short, Your Answer would be Option C

Hope this helps!
6 0
3 years ago
How is light reflected from a prism​
Ivenika [448]

Answer:

White light entering a prism is bent, or refracted, and the light separates into its constituent wavelengths. Each wavelength of light has a different colour and bends at a different angle. The colours of white light always emerge through a prism in the same order—red, orange, yellow, green, blue, indigo, and violet.

7 0
2 years ago
Read 2 more answers
The mass of earth 6*10^24kg and radius is 400kg Now find the value of acceleration due to gravity when a object is 3600km from t
vlada-n [284]
I don’t worry wewwwww it is a good time to get it done lol lol i don’t worry about it lol lol i lol
5 0
2 years ago
I need help I’ll give you 15 points for both of them
Simora [160]

Answer:

Point c

Explanation:

Because of gravity

5 0
3 years ago
Other questions:
  • A 2-kg book falls off a shelf. It hits a student traveling 2 m/s. How much kinetic energy does the book have?
    6·1 answer
  • Galileo's contribution to the study of motion
    9·1 answer
  • Compare how magnetic forces act through non-magnetic materials and<br>magnetic materials:​
    6·1 answer
  • What is the heart rate recorded a few minutes after completing a workout?
    6·2 answers
  • Why doesn’t a machine that increases force break the law of conservation of energy?
    6·1 answer
  • The golden gate bridge in san francisco, california is 227.4 meters above mean sea level (msl). what is the maximum distance awa
    14·1 answer
  • A student builds a rocket-propelled cart for a science project. Its acceleration is not quite high enough to win a prize, so he
    11·1 answer
  • What molecule(s) does carbon, hydrogen, and oxygen come from?
    8·1 answer
  • Josh tests an unknown liquid substance using litmus paper. When he compared the used litmus paper to a pH scale, the color match
    11·1 answer
  • An object starts at the 100 m mark and ends up at the -100 m mark, 50
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!