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
yarga [219]
2 years ago
5

A 0.03 kg baby sea turtle moves across the sand toward the ocean at 0.3 m/s. What is her kinetic energy in Joules?

Physics
1 answer:
lina2011 [118]2 years ago
4 0

Answer:

.00135 j

Explanation:

K.E. = 1/2   m  v^2

       = 1/2 * .03 * .3^2 = .00135 j

You might be interested in
Difference between 3.15 m and 2.0 m with the correct number of significant figures?
pentagon [3]

Answer:

1.2

Explanation:

took the test

3 0
3 years ago
How far will a car travel in 25 seconds at 10m/ min
Kryger [21]
Time = 25s
speed = 10m/min
= 10m / 60
= (1/6)m/s


distance = speed × time
= 25 × (1/6)
=4.167m
7 0
3 years ago
How can u create a fair test?<br><br> Short answer only:
Crazy boy [7]

Answer:

making sure that you change one factor at a time while keeping all other conditions the same

Explanation:

5 0
2 years ago
Read 2 more answers
When you irradiate a metal with light of wavelength 433 nm in an investigation of the photoelectric effect, you discover that a
sergij07 [2.7K]

Answer:

The right solution is:

(a) 2.87 eV

(b) 1.4375 eV

Explanation:

Given:

Wavelength,

= 433 nm

Potential difference,

= 1.43 V

Now,

(a)

The energy of photon will be:

E = \frac{6.626\times 10^{-34}\times 3\times 10^8}{433\times 10^{-9}}

  = 4.59\times 10^{-19} \ J

or,

  = \frac{4.59\times 10^{-19}}{1.6\times 10^{-19}}

  = 2.87 \ eV

(b)

As we know,

⇒ Vq=\frac{hc}{\lambda}-\Phi_0

By substituting the values, we get

⇒ 1.43\times 1.6\times 10^{19}=\frac{6.626\times 10^{-34}\times 3\times 10^8}{433\times 10^{-9}}-\Phi_0

⇒                       \Phi_0=2.3\times 10^{-19} \ J

or,

⇒                            =\frac{2.3\times 10^{-19}}{1.6\times 10^{-19}}

⇒                            =1.4375 \ eV

5 0
3 years ago
A small 12.00 g plastic ball is suspended by a string in a uniform, horizontal electric field. If the ball is in equilibrium whe
notsponge [240]

Answer:

Q = \frac{0.068}{E}

where E = electric field intensity

Explanation:

As we know that plastic ball is suspended by a string which makes 30 degree angle with the vertical

So here force due to electrostatic force on the charged ball is in horizontal direction along the direction of electric field

while weight of the ball is vertically downwards

so here we have

QE = F_x

mg = F_y

since string makes 30 degree angle with the vertical so we will have

tan\theta = \frac{F_x}{F_y}

tan30 = \frac{QE}{mg}

Q = \frac{mg}{E}tan30

Q = \frac{0.012\times 9.81}{E} tan30

Q = \frac{0.068}{E}

where E = electric field intensity

5 0
3 years ago
Other questions:
  • What conclusion does the student most likely make based
    6·2 answers
  • What is the thermal efficiency a carnot engine operating between the highest and lowest temperatures reached by this engine?
    6·1 answer
  • Which of the following objects will exert the greatest gravitational force on a box, if the distance between them remains the sa
    14·1 answer
  • What is one way a rift valley can form?
    10·2 answers
  • Which color wave has the largest frequency?<br> n<br> purple<br> red<br> blue<br> orange<br> green
    7·1 answer
  • What is escape velocity​
    11·2 answers
  • man stands on a platform that is rotating (without friction) with an angular speed of 1.2 rev/s; his arms are outstretched and h
    15·1 answer
  • A baseball player runs 27 m from third base to home plate in 3.2 s. What is
    14·2 answers
  • Two current-carrying wires are exactly parallel to one another and both carry 2.5A of current. The two wires are separated by a
    15·1 answer
  • A 1500 kg car
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!