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
rodikova [14]
3 years ago
10

A net force of 60 N north acts on an object with a mass of 30 kg. Use Newton's second law of

Physics
1 answer:
earnstyle [38]3 years ago
7 0

Answer:

Explanation:

F = ma. For us, this looks like

60 = 30a and

a = 2 m/s/s

If the force goes up to, say, 90, then

90 = 30a and

a = 3...if the force goes up, the acceleration also goes up.

If the mass goes up to say, 60, and the force stays the same, then

60 = 60a and

a = 1...if the mass goes up, the acceleration goes down.

You might be interested in
Which has the most kinetic energy?
lara31 [8.8K]

Answer:

I think A golf ball shot out of a small cannon

Explanation:

3 0
2 years ago
A radio wave transmits 38.5 W/m2 of power per unit area. A flat surface of area A is perpendicular to the direction of propagati
Margaret [11]

Answer:

P=2.57\times 10^{-7}\ N/m^2

Explanation:

Given that,

A radio wave transmits 38.5 W/m² of power per unit area.

A flat surface of area A is perpendicular to the direction of propagation of the wave.

We need to find the radiation pressure on it. It is given by the formula as follows :

P=\dfrac{2I}{c}

Where

c is speed of light

Putting all the values, we get :

P=\dfrac{2\times 38.5}{3\times 10^8}\\\\=2.57\times 10^{-7}\ N/m^2

So, the radiation pressure is 2.57\times 10^{-7}\ N/m^2.

3 0
3 years ago
When you lift an object, you add the energy of lifting to the object.<br> Tor F
PtichkaEL [24]

It's true, when we lift an object we add energy to it.

because, when we lift an object by applying force , the object attains a height and hence the energy gets stored in it, in the form gravitational potential energy .

6 0
2 years ago
If the radio waves transmitted by a radio station have a frequency of 76.5 mhz, what is the wavelength of the waves, in meters?
____ [38]
Given: Velocity of light    c = 3.00 x 10⁸ m/s

Frequency f = 7.65 x 10⁷/s

Required: Wavelength λ = ?

Formula:  λ = c/f

λ = 3.00 x 10⁸ m/s/7.65 x 10⁷/s

λ = 3.92 m
3 0
2 years ago
Can science answer every question
Alla [95]
No because your opinion and beliefs answers many questions
5 0
2 years ago
Read 2 more answers
Other questions:
  • The sun’s absolute magnitude is described as _______ in comparison to other stars.
    12·2 answers
  • Altitude is the angle measured above ____.<br><br> North Pole<br> horizon<br> equator<br> zenith
    15·2 answers
  • If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is
    9·1 answer
  • Mr. Hershman has purchased a farm that is in the shape of a rectangle. The dimensions of the piece of land are 4.3 km by 4.85 km
    14·1 answer
  • Two narrow slits are illuminated by light of wavelength λ. The slits are spaced 20 wavelengths apart. What is the angle, in radi
    11·1 answer
  • The number of mushrooms needed by a pizza restaurant is given by the
    6·1 answer
  • A sinusoidal electromagnetic wave is propagating in a vacuum in the +z-direction.Part AIf at a particular instant and at a certa
    14·1 answer
  • How much heat is required to raise the temperature of 2.0 kg of concrete from 10C to 30C? (The specific heat of concrete is 880
    11·1 answer
  • plss answer what do yo call the substance from the male body that travel to the female body to make children​
    10·2 answers
  • Question #14
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!