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
timurjin [86]
3 years ago
9

A scientist at a space research center is doing research on near-Earth objects and determining the kinetic energy of a theoretic

al object. A meteorite with a mass of 12 grams falls to Earth. If the meteorite’s velocity is 35 kilometers/second, what is its kinetic energy?
Physics
2 answers:
kvv77 [185]3 years ago
7 0
(Taking an online class with this exact question, Answer given by program)
KE= 1/2 mv^2
     = 1/2(0.012)(35,000)^2
     = 7.35x10^6
The kinetic energy of the meterorite is 7.35 x 10^6 Joules
Marysya12 [62]3 years ago
6 0
<span>its kinetic energy is 7350kJ 
</span>

Kinetic energy is given as = \frac{1}{2} mv^{2}

Now, m = 12 gms = 0.012 kg
 And, velocity = 35 kilometers/second = 35000 m/sec

Kinetic energy is given as = \frac{1}{2} 0.012 kg * 35000*35000 m/[tex] s^{2}
                        = 6 10^{-2}×1225 ×10^{6} m/s^{2} 
                        = 7350 kJ
You might be interested in
A baseball rolls off a 1.20m high desk and strikes the floor 0.50m away from the base of the desk . How fast was it rolling?
noname [10]

The initial velocity of the ball is 1.01 m/s

Explanation:

The motion of the ball rolling off the desk is a projectile motion, which consists of two independent motions:

- A uniform horizontal motion with constant horizontal velocity

- A vertical accelerated motion with constant acceleration (g=9.8 m/s^2, acceleration due to gravity)

We start by analyzing the vertical motion: we can find the time of flight of the ball by using the following suvat equation

s=ut+\frac{1}{2}gt^2

where

s = 1.20 m is the vertical displacement (the height of the desk)

u = 0 is the initial vertical velocity

g=9.8 m/s^2

t is the time of flight

Solving for t,

t=\sqrt{\frac{2s}{g}}=\sqrt{\frac{2(1.20)}{9.8}}=0.495 s

Now we analyze the horizontal motion. We know that the ball covers a horizontal distance of

d = 0.50 m

in a time

t = 0.495 s

Therefore, since the horizontal velocity is constant, we can calculate it as

v_x = \frac{d}{t}=\frac{0.50}{0.495}=1.01 m/s

So, the ball rolls off the table at 1.01 m/s.

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

4 0
3 years ago
What is the requirement for a core to be used in an electromagnet?
xxMikexx [17]

D. It must be able to be magnetized

Explanation:

The requirement for a core to be used in an electromagnet is that it must be able to be magnetized.

An electromagnet is a type of magnet produced by electricity.

  • They typically run and produce magnetic fields in the vicinity of electrical currents.
  • These magnets are not permanent magnets.
  • When the electrical current is removed, the magnetic property of the substance is lost.
  • The core of an electromagnet is usually made up of a material that can easily be magnetized in the presence of magnetic fields.
  • Some of the materials used are cobalt, iron, nickel.

learn more:

Electromagnet brainly.com/question/2191993

#learnwithBrainly

8 0
3 years ago
Convert 592 minutes to seconds. using one step conversion.
vovangra [49]

Answer:

35520

Explanation:

592 times 60=35520

8 0
2 years ago
Carbon-12 and carbon-13 are two different___<br> of carbon.
Agata [3.3K]

Answer: isotopes

Explanation:

7 0
3 years ago
A very long solenoid with a circular cross section and radius r1= 1.30 cm with ns= 260 turns/cm lies inside a short coil of radi
allochka39001 [22]

Answer:

0.00851 volts

Explanation:

radius r1= 1.30 cm with ns= 260 turns/cm

radius r2= 4.60 cm and Nc= 23 turns

constant rate from zero to Is= 1.90 A

time interval of 88.0 ms

Area of the solenoid

A_1=\pi*r_1^2

=\pi*0.013^2

A_1=5.31*10^-^4 m^2

Mututal Inductance

M=uo*n*N*A1

M=(4\pi*10^-^7)*23*(260*10^2)*(5.31*10^-^4)

M=3.99*10^-^4 H

a)

EMF induced in the outer coil

E=M(dIs/dt)

E=(3.99*10^-^4)*(1.9/88*10^-^3)

E=0.00861 Volts

5 0
3 years ago
Other questions:
  • Consider an unknown charge that is released from rest at a particular location in an electric field so that it has some initial
    12·1 answer
  • Jack (mass 52.0 kg ) is sliding due east with speed 8.00 m/s on the surface of a frozen pond. he collides with jill (mass 49.0 k
    9·1 answer
  • If only a green light shown on a bunny that has black and white fur, what would the bunny look like?
    12·1 answer
  • What problems do pathogens cause in our society?
    8·1 answer
  • Beyond what point must an object be squeezed for it to be a black hole? A : Schwarzschild Radius. B : Crackpoint. C : Event Hori
    10·2 answers
  • A scientist designed a foam container to help keep frozen foods from melting. Which best explains how the foam works?
    9·2 answers
  • A tree is fixed relative to Earth a tree is blank relative to the Sun
    5·1 answer
  • At baseball practice, Mason and Alfredo both picked up the same bat and neither would let go until one of them had it for himsel
    5·1 answer
  • If a girl walks 6km due west changes directions and walk another 5km due north. Find her displacement in both magnitude and dire
    9·1 answer
  • A standard baseball has a circumference of apoximately 23cm. If a baseball had the same mass per unit volume as a neutron or a p
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!