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
Kryger [21]
3 years ago
15

A 20 N unbalanced force causes an object to accelerate at 1.5 m/s2. What is the mass of the object?

Physics
1 answer:
Ket [755]3 years ago
8 0

<u>Answer:</u>

Force = 20N

acceleration (a) = 1.5 m/s²

Mass of object (m) = ?

<u>From Newtons II law</u>

                   <em>    F = m. a N</em>

                        m =  F/a

                        m = 20/1.5

                      <em>  m = 13.34 Kg</em>

<em>Mass of an object is 13.34 Kg</em>

You might be interested in
Question 24
Verizon [17]
Q 24: Newton's first law of motion states that anything that stands still will stay still unless unbalanced force is acted upon that object. Newton's second law of motion states that the velocity of an object changes when subjected to external Force. Newton's third law of motion says that for every action there is an equal and opposite reaction. when bumper cars crash into each other one car goes one way and the other goes the other way.

Q 25: if the bumper cars doubled their Mass the motion would be halfed but if the net force is doubled the motion will double.
8 0
3 years ago
What does the electric field strength tell about the electric firld?
Solnce55 [7]

Answer:

Explanation:

The region around a charged particle where another charged particle experiences a force of attraction or repulsion is called electric field.

The strength of electric field is defined as the force experienced by the unit positive test charge.

E = F / q

Electric field strength is a vector quantity and it is measured in newton per coulomb.

Where, F is the force of attraction or repulsion between the two charges and q is the test charge on which the electric field strength is to be calculated.

The strength of electric field is more if the field is strong. It means more be the electric field strength at a point more be the electric field.

8 0
3 years ago
PLEASE HELP!
Anna [14]

Answer:

Explanation:

At constant pressure , work done by gas = P x ΔV where P is pressure and ΔV is change in volume

ΔV = 9.2 - 5.6 = 3.6 L

3.6 L = 3.6 x 10⁻³ m³

ΔV = 3.6 x 10⁻³ m³

P = 3.7 x 10³ Pa

So work done

= 3.7 x 10³ x 3.6 x 10⁻³ J

= 13.32 J .

( c ) is the answer , because work is done by the gas so it will be positive.

5 0
3 years ago
Read 2 more answers
What must be the pressure difference between the two ends of a 2.6 km section of pipe, 36 cm in diameter, if it is to transport
ad-work [718]

Answer: 1.13(10)^{3} Pa

Explanation:

This problem can be solved by the following equation:

\Delta P=\frac{8 \eta L Q}{\pi r^{4}}

Where:

\Delta P is the pressure difference between the two ends of the pipe

\eta=0.20 Pa.s is the viscosity of oil

L=2.6 km=2600 m is the length of the pipe

Q=900 \frac{cm^{3}}{s} \frac{1 m^{3}}{(100 cm)^{3}}=0.0009 \frac{m^{3}}{s} is the Rate of flow of the fluid

d=36 cm=0.36 m is the diameter of the pipe

r=\frac{d}{2}=0.18 m is the radius of the pipe

Soving for \Delta P:

\Delta P=\frac{8 (0.20 Pa.s)(2600 m)(0.0009 \frac{m^{3}}{s})}{\pi (0.18 m)^{4}}

Finally:

\Delta P=1135.26 Pa \approx 1.13(10)^{3} Pa

7 0
3 years ago
A boy weighs 400N. what is his mass?
Basile [38]

≈40.8kg


this is to take up space


m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

m

=

W

g


=

400

N

9.8

m/s

2


≈

40.8

kg

4 0
3 years ago
Read 2 more answers
Other questions:
  • How can light change matter
    6·1 answer
  • A ball is projected horizontally from the top of a cliff. At the same moment, a second identical ball is dropped from rest from
    9·1 answer
  • A uniform thin rod of length 0.60 m and mass 3.5 kg can rotate in a horizontal plane about a vertical axis through its center. T
    12·1 answer
  • When a hurricane nears land what causes the most damage
    14·1 answer
  • Can an object contain heat? Why or why not?
    12·1 answer
  • A football player has a mass of 65 kg and is moving with a velocity of 5 m/s. What is the players momentum
    13·2 answers
  • How do you the average speed
    15·1 answer
  • Oil having a density of 923 kg/m^3 floats on water. A rectangular block of wood 4.81 cm high and with a density of 961 kg/m^3 fl
    15·1 answer
  • What scenario shows responsible behavior with regard to lab safety
    15·1 answer
  • Plate] term 3 quiz 1 physics grade 9
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!