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
kow [346]
3 years ago
6

A 15kg ball accelerates at a rate of 3m/s/s. What force was required?

Physics
1 answer:
hoa [83]3 years ago
3 0

Answer:

<h2>45 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 15 × 3

We have the final answer as

<h3>45 N</h3>

Hope this helps you

You might be interested in
Calculate the workdone to stretch an elastic string by 40cm if a force of 10 newton produces an extension of 4cm in it
notka56 [123]

Answer:

Workdone = 20 Joules

Explanation:

Given the following data;

Force = 10N

Extension, e = 4cm to meters = 4/100 = 0.04 meters

Workdone extension = 40cm to meters = 40/100 = 0.4 meters

To find the work done;

First of all, we would find the spring constant using the formula;

Force = spring constant * extension

10 = spring constant * 0.04

Spring constant = 10/0.04

Spring constant = 250 N/m

Next, we find the work done;

Workdone = ½ke²

Where;

k is the spring constant.

e is the extension.

Substituting into the formula, we have;

Workdone = ½ * 250 * 0.4²

Workdone = 125 * 0.16

Workdone = 20 Joules

5 0
3 years ago
The following images show the four terrestrial planets in our solar system (not to scale). Rank these planets from left to right
Elina [12.6K]

Answer:

Venus, Earth, Mars, Mercury

Explanation:

The atmospheric pressure is determined by the gravitational attraction of the planet over the atmosphere.

Since the gravitational force is defined as:

F = G\frac{m1m2}{r^{2}} (1)

Notice from equation 1, how the gravitational force depends on the masses of the two objects that are interacting and the distance to the square between them.

For this particular case, m1 is the mass of the planet and m2 is the mass of the gasses in the atmosphere. While the r is the distance between those two.

Venus has a more dense atmosphere and than the Earth, so it has a higher atmospheric pressure. The same case can be seen for the Earth and Mars.

Mercury is the one with the lower atmospheric pressure since it has a thin atmosphere as a consequence of his small size.

3 0
3 years ago
Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy
mel-nik [20]
<span>longitudinal waves

Hope this helps!</span>
6 0
3 years ago
What does ROCAPV mean? It says related to electricity.
Maurinko [17]

Answer:  Rancho de Area Comunes PV

Explanation: it means

Rancho de Area Comunes PV

In an AC Monte Roca PV System Profile, where the following are depicted:

Location

Commissioning

Production

Operator

PV system power

Module

And communication.

7 0
4 years ago
A cat with a mass of 5 kg sits on a branch that is 26 m off the ground. What is
Ostrovityanka [42]

Answer:

1274 J.

Explanation:

P. E= mgh

where m = 5 kg

g = 9.8m/s²

h = 26m

P. E = 5*26*9.8

=1274 J.

4 0
4 years ago
Other questions:
  • Who developed the earliest system for the classification of animals?
    7·2 answers
  • A gas is confined in a cylinder with a piston. What happens when work is done on the gas?
    10·2 answers
  • A wet shirt is put on a clothesline to dry on a sunny day. Do water molecules lose heat and condense, gain heat and condense or
    13·1 answer
  • What are the Big Five Personality Factors?
    5·2 answers
  • How do i do a Wavelength and frequency problem
    10·1 answer
  • Friction occurs when microscopic hills and valleys stick together<br><br> true or false
    12·2 answers
  • 13. For an object to appear transparent, what interaction must occur between light waves and the object they hit?
    7·2 answers
  • What type of reaction is being shown in this energy diagram?
    12·1 answer
  • This. please help me.
    13·1 answer
  • 190 kg of water is to be raised by a water pump to a height of 25 meters from the bottom of a well in 60 seconds. What should be
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!