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
hammer [34]
3 years ago
14

How much net force is needed to accelerate a 15 kg mass at 2.8 m/s^2

Physics
1 answer:
Lera25 [3.4K]3 years ago
4 0
Refer to the 2th Law of Newton

F = m. a

F = 15 x 2.8 = 42 N
You might be interested in
Fill in the blanks to complete each statement about mountains.
valina [46]

Range, Belt.

Just got it right on e,,d,,g,,e

8 0
3 years ago
Read 2 more answers
You have a beaker with a layer of olive oil floating on top of water. A ray of light travels through the oil and is incident on
malfutka [58]

Answer:

a)    θ = 65º  , b) the light is refracted

Explanation:

When a ray of light passes from a material with a higher index to one with a lower index, the ray separates from the normal one, so there is an angle for which the ray is refracted at 90º, the refractive equation is

           n₁ sin θ₁ = n₂

where θ₁ is the incident angle, n₂ and n₁ are the indexes of incident and refracted parts

let's calculate

         sin θ = n₂ / n₁

         sint θ = 1.3333 / 1.470

         sin θ = 0.907

         θ = sin⁻¹ 0.907

          θ = 65º

For the incident angle of 50.2º it is less than the critical angle, so the light is refracted according to the refraction equation

8 0
3 years ago
What are two real life examples that resemble peristalsis?
Savatey [412]
When food and waste products are pushed through the intestine, a tube shaped structure that is part of the digestive tract. 

when pee is forced through the ureters.
6 0
4 years ago
An atoms valence electrons are those electrons that have the highest energy true or false
bazaltina [42]

Answer:

True

Explanation:

An atom's valance electrons are those electrons that have the highest energy. Atoms tend to be stable and nonreactive if they have the highestvalence electrons. In the periodic table, the number of valence electrons in each element decreases from left to right across each period.

4 0
4 years ago
an object is moving with a velocity 10 m/s but its slowing down.After 2m it has stoppes.What was the acceleration?​
s344n2d4d5 [400]

Answer:

Explanation

distance= speedx time

time= 2m/(10m/s) =0.2s

a = v-u/t

a = 0-(10m/s)/0.2s

a= -50m/s2

5 0
4 years ago
Other questions:
  • An electron starts from rest 3.00 cm from the center of a uniformly charged sphere of radius 2.00 cm. if the sphere carries a to
    11·1 answer
  • According to the Big Bang Theory, the universe is __________________. A) constant B) depleting C) expanding D) exploding
    6·2 answers
  • Please help it’s for physics!!
    6·1 answer
  • Why can we see the entire side of the moon during a full moon?
    7·1 answer
  • A satellite is always being pulled by gravity.truefalse
    7·1 answer
  • What is the magnitude of the angular momentum (in kgm2/s) of a 40 g golf ball flying through the air and spinning at 4300 rpm af
    5·1 answer
  • An NFL wide receiver prospect runs 40 m in 4.5 seconds. What is the average speed of the wide receiver (m/s)?
    6·1 answer
  • What are some causes of an increase in GHG's in the atmos? (will give brainless) 12.
    10·1 answer
  • Please help me and show work, will mark Brainliest!!
    14·1 answer
  • A uniform rod AB is 180Cm long and 2kg. It balances horizontally on a single Support when carrying loads of lkg and 3kg at dista
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!