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
Anuta_ua [19.1K]
3 years ago
11

What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s?

Physics
1 answer:
Lesechka [4]3 years ago
8 0
Ke=1/2mv^2
Ke= 0.5*30*20^2
Ke= 6000joules
You might be interested in
The magnitude of the electric force between two protons is 2.30 10-26 n. how far apart are they?
SCORPION-xisa [38]
The electric force between two charge objects is calculated through the Coulomb's law.
                               F = kq₁q₂/d²
The value of k is 9.0 x 10^9 Nm²/C² and the charge of proton is 1.602 x10^-19 C. Substituting the known values from the given,
                           2.30x10^-26 = (9.0 x 10^9 Nm²/C²)(1.602 x10^-19C)²/d²
The value of d is equal to 0.10 m. 
7 0
3 years ago
Read 2 more answers
What symbol represents energy that moves from a hot object to a cooler object?
strojnjashka [21]
The correct answer is 
<span>C) Q

In fact, the symbol Q represents the heat, which is the form of energy transferred from a hot object to a cooler object. Heat generally refers to the energy related to the motion of the particles, and it is related to the temperature of an object: the higher the temperature of an object, the faster the particles of the object move, and so the object can transfer more energy (as heat) to other objects with lower temperature.</span>
6 0
3 years ago
The current through a 0.2-H inductor is i(t) = 10te–5t A. What is the energy stored in the inductor?
lakkis [162]

Answer:

E = 10t^2e^-10t Joules

Explanation:

Given that the current through a 0.2-H inductor is i(t) = 10te–5t A.

The energy E stored in the inductor can be expressed as

E = 1/2Ll^2

Substitutes the inductor L and the current I into the formula

E = 1/2 × 0.2 × ( 10te^-5t )^2

E = 0.1 × 100t^2e^-10t

E = 10t^2e^-10t Joules

Therefore, the energy stored in the inductor is 10t^2e^-10t Joules

6 0
3 years ago
Why does the pattern of colors repeat in a thin soap film? Please use 2 content related sentences. (ref: p.522-530)
Slav-nsk [51]
Becuz when you wash up in the tub you want layers of soap so you don’t stink
4 0
3 years ago
What is the amplitude of photo as they passed a black hole​
aalyn [17]

Answer:

Explanation:

It is you moma

7 0
3 years ago
Other questions:
  • A block of wood has a height of 10 m, a length of 2 m, and a width of 2 m. What is the volume of the block of wood?
    12·1 answer
  • Which of the following statements is a consequence of the equation, E = mc2
    13·1 answer
  • What is the mass of a plastic spoon
    14·2 answers
  • Force that opposes motion between two surfaces
    14·1 answer
  • What is capacitance?
    9·1 answer
  • A(n) ______ force is the overall force on an object after all the force are added together.
    11·2 answers
  • Force F = (-6.0 N)ihat + (2.0 N) jhatacts on a particle with position vector r =(4.0 m) ihat+ (4.0 m) jhat.
    9·2 answers
  • 1. A student mixes baking soda and vinegar in a glass. Do you think any new substances are being created in this mixture? If so,
    15·1 answer
  • A car is pulled with a force of 10,000 N. The car's mass is 1267 kg. But, the car covers 394.6 m in 15 seconds
    13·1 answer
  • Please help. I don’t understand this
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!