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
uysha [10]
3 years ago
7

a kid uses a slingshot to shoot a rock at a target. when the kid applies a net force of 8.68 N forward, the rock accelerates at

a rate of 12.4 m/s^2 forward. What is the rocks mass?
Physics
1 answer:
Feliz [49]3 years ago
7 0

Answer:

0.7kg

Explanation:

Given parameters:

Force on the rock  = 8.68N

Acceleration  = 12.4m/s²

Unknown:

Mass of the rock  = ?

Solution:

From newton's second law of motion, the net force on a body is the product of mass and acceleration

  Net force  = mass x acceleration

Now insert the parameters and solve the problem;

         8.68  = mass x 12.4

          mass = \frac{8.68}{12.4}  = 0.7kg

You might be interested in
Determina el trabajo realizado al desplazar un bloque 3 m sobre una superficie horizontal, si se desprecia la fricción y la fuer
bija089 [108]

Answer: El trabajo realizado al desplazar el bloque es: 75 N.m

Datos:

Fuerza= F= 25 N

Distancia= d= 3 m

Explicación:

El trabajo es el producto de la fuerza ejercida sobre un cuerpo con el desplazamiento producido por la fuerza. Para que exista trabajo, la dirección de la fuerza debe ser igual a la dirección del desplazamiento.

Trabajo= Fuerza x Desplazamiento

Reemplazando los datos:

T= 25 N * 3 m

T= 75 N.m

5 0
3 years ago
Explain How do the attractions between particles in a fluid determine viscosity?
Vikentia [17]

Answer: Viscosity is due to particle mass, particle shape, and the strength of the attraction between the particles of a liquid. In general, the stronger the attractive forces between particles, the higher the viscosity. For many liquids, viscosity decreases when heat is applied.

Explanation:

6 0
3 years ago
How many meters in 2.50 miles? (Use these two conversions: 1000 m = 1 km and 1.00 km = .621 mi )
Artyom0805 [142]

2.50 miles is equal to 4026 m.

<u>Explanation:</u>

As it is known that 1000 m =1 km and 1 km = 0.621 miles. So first we have to convert miles to km and then to metre as follows.

As 1 km = 0.621 miles, then

             \text { 1 miles }=\frac{1}{0.621} \mathrm{km}

So, 2.50 miles will be equal to

            2.50 \text { miles }=\frac{2.50}{0.621} \mathrm{km}=4.026 \mathrm{km}

Then, in order to get the answer in meters, we have to convert this km to meter by the conversion of 1000 m =1 km.  So,

           1 \mathrm{km}=1000 \mathrm{m}

Thereby,

          4.026 \mathrm{km}=4026 \mathrm{m}

7 0
3 years ago
Why is it important to have a balance of gases in the atmosphere?
Vinvika [58]
The greenhouse gases absorb some of this energy and radiate much of it back towards the surface whilst the rest is radiated out to space. This plays an important role in keeping the Earth's surface warm and able to sustain life.
6 0
3 years ago
Which of these is a base?<br><br><br> HNO3<br><br><br> vinegar<br><br><br> ammonia<br><br><br> HCl
wlad13 [49]

The correct answer is Ammonia

3 0
3 years ago
Other questions:
  • Air is colorless, odorless, and tasteless. describe one way that air can be shown to exist.
    10·1 answer
  • An electron is located on a pinpoint having a diameter of 3.52 µm. What is the minimum uncertainty in the speed of the electron?
    15·1 answer
  • The transfer of energy from one organism to the next in an ecosystem begins with a producer. A producer is an organism that prod
    9·1 answer
  • You are watching people practicing archery when you wonder how fast an arrow is shot from a bow. With a flash of insight you rem
    11·1 answer
  • to travel at a constant velocity, a car exerts force that is 551N to balance air resistance. how much work does the car do on th
    9·1 answer
  • "a horn emits a frequency of 1000 HZ. A 14 m/s wind is blowing toward a listener. What is the frequency of the sound heard by th
    14·1 answer
  • What is the relationship between CO2 levels and temperature?
    13·1 answer
  • I know the acceleration due to gravity (ie 9.8 m/s2) will have a negative sign when falling down, a positive one when going up.
    7·1 answer
  • Calculate the number of moles of gas present in the sealed container at a
    12·1 answer
  • A beaker of mass 1.2 kg containing 2.5 kg of water rests on a scale. A 3.8 kg block of a metallic alloy of density 3300 kg/m3 is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!