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
pashok25 [27]
3 years ago
8

A 4-kg object is moving with a speed of 5 m/s at a height of 2 m. The kinetic

Physics
1 answer:
tatyana61 [14]3 years ago
7 0

Hello!

\large\boxed{KE = 50J}

Use the formula for kinetic energy:

KE = \frac{1}{2}mv^{2}

Plug in the given mass and velocity:

KE = \frac{1}{2} (4)5^{2}

Simplify:

KE = \frac{1}{2} (100)\\\\KE = 50 J

You might be interested in
action and reaction are equal in magnitude and opposite direction then why they don't balance each other
Harrizon [31]
Action and reaction are equal in magnitude and opposite direction by they don't balance each other because they don't occur on the same body. Action is involved on one body and reaction is involved on another body.
Hope you understood...
8 0
3 years ago
Which of the following is not an air pollutant?
Lelu [443]
Answer: 1. Carbon dioxide is not an air pollutant

Explanation: it can be toxic and or safe
7 0
2 years ago
Read 2 more answers
What information can be determined by observing dark lines within the spectrum of a given star?
Scrat [10]
I believe the answer is D.  
6 0
3 years ago
A protein molecule in an electrophoresis gel has a negative charge.The exact charge depends on the pH of the solution, but 30 ex
Ad libitum [116K]

Answer:

The magnitude of the electric force on a protein with this charge is 7.2\times10^{-15}\ N

Explanation:

Given that,

Electric field = 1500 N/C

Charge = 30 e

We need to calculate the magnitude of the electric force on a protein with this charge

Using formula of electrostatic force

F=Eq

Where, F = force

E = electric field

q = charge

Put the value into the formula

F=1500\times30\times1.6\times10^{-19}

F=7.2\times10^{-15}\ N

Hence, The magnitude of the electric force on a protein with this charge is 7.2\times10^{-15}\ N

6 0
3 years ago
A motorist makes a trip of 180 miles. For the first 90 mph she drives at a constant speed of 30 mph. What constant speed must sh
Likurg_2 [28]
I think it is 50 mhp because it's in half
5 0
3 years ago
Other questions:
  • The frequency of a wave is 10 Hz. If the speed of the wave is 5 m/s, what is the wavelength? A. 0.5 m B. 2 m C. 10 m D. 50 m
    6·1 answer
  • What change of states of matter is this? A warm wind makes snow on the ground seem to disappear, but no puddles form.
    8·2 answers
  • How does the heat from sun reach earth
    14·1 answer
  • What is the kinetic energy k of the two-car system immediately after the collision? express your answer in terms of ve, vn, and
    6·1 answer
  • Which are descriptions of gravity on Earth? Check all that apply.
    5·2 answers
  • To practice Problem-Solving Strategy 22.1 for electric force problems. Two charged particles, with charges q1=qq1=q and q2=4qq2=
    11·1 answer
  • What is the magnitude of the normal force?
    14·1 answer
  • Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 60 mi/h.How
    7·1 answer
  • What is "Motion?"
    6·1 answer
  • People will form relationships with others who are similar in __________.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!