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
Nataly [62]
2 years ago
9

A 500 N force accelerates an object at 20 m s-2. What is its mass?

Physics
1 answer:
avanturin [10]2 years ago
8 0

<u>Answer</u>: The mass of the object is 25kg.

The given question deals with Newton's second law of motion and its applications.

<u>Explanation:</u> Given force, F=500N

                                 acceleration, a=20 m/s^{2}

  From Newton's 2nd law of motion , we have

                             F=ma where m=mass of the object

                         ⇒500=m×20

                         ⇒m=500/20=25

                 ∴ Mass of the object is 25 kg .

<u> </u><u>Reference Link: </u>brainly.com/question/1141170

#SPJ2

You might be interested in
(a) An ideal gas initially at pressure p0 undergoes a free expansion until its volume is 3.80 times its initial volume. What the
trapecia [35]

Answer:

a)P/Po=0.263

b)γ=1.33 So gas is triatomic

c)\dfrac{KE_f}{KE_i}=1.56

Explanation:

a)

initial pressure = Po

Initial volume = Vo

Final volume = 3.8 Vo

Lets take final pressure is P

we know that for free expansion process

PV= Constant

Po x Vo = P x 3.8 Vo

P=0.263 Po

So

P/Po=0.263

b)

Now gas is compressed in adiabatic manner

Final pressure = 1.56 Po

                       =1.56 Po

We know that for adiabatic process

P_1V_1^{\gamma}=P_2V_2^{\gamma}

\dfrac{V_2}{V_1}=\left(\dfrac{P_1}{P_2}\right)^{\dfrac{1}{\gamma}}

0.263P_o(3.8V_o)^{\gamma}=1.56P_o\times V_o^{\gamma}

γ=1.33 So gas is triatomic

c)

We know that average kinetic energy given as

KE=\dfrac{3}{2}KT

\dfrac{KE_f}{KE_i}=\dfrac{T_f}{T_i}\

\dfrac{KE_f}{KE_i}=\dfrac{P_fV_f}{P_iV_i}

\dfrac{KE_f}{KE_i}=\dfrac{1.56P_oV_o}{P_oV_o}

\dfrac{KE_f}{KE_i}=1.56

3 0
3 years ago
The difference in emf between the primary coil of a transformer and the secondary coil is directly related to the relative numbe
kirill115 [55]
True.

The more the coils either at the Primary or Secondary coils, the higher the Primary or Secondary Emf. The lower the coils at the Primary or Secondary coils, the lower the EMF at the Primary or Secondary.

Hence there is a direct relationship.
8 0
4 years ago
an electron travels at 0.3037 times the speed of light through a magnetic field and feels a force of 1.2498 pN. What is the magn
ahrayia [7]

Answer:

Explanation:

Charge on an electron (q) = 1.6 * 10 ^ -19 C

Velocity of electron (v) = 0.3037 * 300,000,000 = 91,110,000 m/sec

We know that, Force exerted on moving particle moving through a magnetic field :

F= q * v * B ( q,v\ and\  B\ are\ mutually\ perpendicular)

1.2498 * 10 ^ -12 = 1.6 * 10^ -19 * 91110000 * B

B =  0.08573 T

3 0
3 years ago
Question 1 of 20
ad-work [718]

Answer

D. move a small magnet back and forth within a section of the coiled wire.

Explanation:

i put that for the test and i got it right

8 0
3 years ago
Read 2 more answers
Calculate the moment of 3kg and 20cm away from the pivot​
Oksi-84 [34.3K]

Answer:

5.88 Nm

Explanation:

Applying,

Moment(M) = Force(F)×perpendicular distance(d)

M = F×d.................... Equation 1

But,

F = mg.................. Equation 2

Where m = mass, g = acceleration due to gravity.

Substitute equation 2 into equation 1

M = mgd................. Equation 3

From the question,

Given: m = 3 kg, d = 20 cm = 0.2 m

Constant: g = 9.8 m/s²

Substitute these values into equation 3

M = 3×0.2×9.8

M = 5.88 Nm

4 0
3 years ago
Other questions:
  • Use the drop-down menu to complete the statement about Earth’s magnetism. Earth’s magnetic field is generated in the core, which
    7·2 answers
  • HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • Which action would be most important to perform in a controlled experiment? ___A. Design an experiment that is based on previous
    7·1 answer
  • A ping pong ball has a mass of about 2.45 grams. Suppose that Forrest Gump hits the ball across the table with a speed of about
    8·1 answer
  • I’m not sure how to do this
    8·1 answer
  • A ball dropped from the roof of a tall building will fall approximately how far in two seconds? (A) 10 m, (B) 20 m, (C) 30 m, (D
    15·1 answer
  • Một mạch kín hình vuông cạnh 20cm đặt vuông góc với 1 từ trường đều có độ lớn thay đổi theo thời gian. Trong khoảng thời gian 0,
    12·1 answer
  • A swift blow with the hand can break a pine board. As the hand hits the board, the kinetic energy of the hand is transformed int
    11·1 answer
  • The momentum of an object is 2.5 kg•m/s, and it is travelling at a speed of 100 m/s.
    9·1 answer
  • Which of the following is an example of an electromagnetic wave?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!