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
ch4aika [34]
3 years ago
12

A 12 kg box is pulled across the floor with a 48 N horizontal force. If the force of friction is 12 N, what is the acceleration

of the box?
Physics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

The acceleration of the box is 3 m/s²

Explanation:

Given;

mass of the box, m = 12 kg

horizontal force pulling the box forward, Fx = 48 N

frictional force acting against the box in opposite direction, Fk = 12 N

The net horizontal force on the box, F = 48 N - 12 N

The net horizontal force on the box, F = 36 N

Apply Newton's second law of motion to determine the acceleration of the box;

F = ma

where;

F is the net horizontal force on the box

a is the acceleration of the box

a = F / m

a = 36 / 12

a = 3 m/s²

Therefore, the acceleration of the box is 3 m/s²

You might be interested in
What is the property of matter in which a substance can transfer heat or electricity
IgorLugansk [536]

Conductivity is the property of matter in which a substance can transfer heat or electricity

6 0
2 years ago
A person throws a ball from height of 6 feet with an initial vertical velocity of 48 feet per second. Use the vertical motion mo
True [87]

Explanation:

Recall the equation for time is distance divided by speed. Here you can use that to solve for "t".

7 0
2 years ago
The volumes of a sample of lead and a sample of platinum are the same: 2 cm3. The density of lead is 11.3 g/cm3 and the density
Vlad1618 [11]

The answer is C. The mass of the platinum sample is greater than the mass of the lead sample. As I explained in a previous answer, if they are the same volume, but one is heavier, then it must be more dense. In this particular example, the platinum is more dense than the lead, and therefore has more mass.

4 0
3 years ago
Read 2 more answers
A police car is stopped at a red light facing west. When the light turned green, a sports car speeds past it heading west at wit
frutty [35]

Answer:

14 seconds

Explanation:

Distance covered by sports car is measured with 21*t where t is time.

Distance covered by police is measured with at^2/2(t-time, a-acceleration) as it doesnt have starting velocity. If the distances are equal(police catches sport car)

then we have 21t=3/2*t^2 Solving this equation we get t=14 & t=0;

excluding the starting point we have 14 seconds

3 0
3 years ago
Read 2 more answers
What form of electro magnetic radiation does Wi-Fi use
r-ruslan [8.4K]

Answer:

<h2>Non-Ionizing Radiation From Wireless Technology </h2>

Radiofrequency (RF) energy is a type of electromagnetic radiation. It is used to transmit signals carrying information in the form of radio waves. Radio waves are broadcast using a transmitter. When the radio waves reach a receiver, the signal is converted back into the information that was originally sent by the transmitter. When you talk on a cell phone, your cell phone acts as a transmitter and your voice is carried on radio waves to the person you are calling. Their phone acts as the receiver and converts the signal back into your voice. In addition to cell phones, other wireless devices such as radios, Wi-Fi routers, satellites, radars and pacemakers can send or receive RF energy waves.

4 0
2 years ago
Other questions:
  • A 1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. What is the total momentum before
    13·1 answer
  • In order to get going fast, eagles will use a technique called stooping, in which they dive nearly straight down and tuck in the
    13·2 answers
  • (please help asap)
    12·2 answers
  • Stars that become black holes have more __________ than stars that become neutron stars
    14·2 answers
  • A 2 microcoulomb charge is placed at a distance of 0.25 m away from a 3.6 microcoulomb charge. Describe the type of electrostati
    15·2 answers
  • Try to move the magnet back and forth between the two coils. Explain the motion of the magnet and what might be causing this.
    8·1 answer
  • A constellation’s changing position in the sky, at the same time of the evening, over a period of several weeks is evidence that
    15·1 answer
  • 1. Density = 13.5 g/mL<br> Mass = 151 grams<br> Volume =<br> What is the volume
    6·2 answers
  • A small source of sound waves emits uniformly in all directions. The total power output of the source is P. By what factor must
    5·1 answer
  • Which formula represents final velocity of an object with average acceleration?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!