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
Mama L [17]
4 years ago
15

What disadvantage does floating buoys have when it comes to converting wave energy to electrical energy? A) They generate only m

inimum amounts of electricity. B) They pose a risk to migrating whales in the ocean. C) They are easily degraded by the salt water. D) The turbulent ocean often breaks these buoys. Grade Results got me messed up my dudes.
Physics
1 answer:
arsen [322]4 years ago
6 0

Answer:

B

Explanation:

You might be interested in
The less internal heat a jovian planet emits the more it stirs up its clouds.
g100num [7]
The correct answer would be false. The less internal heat a jovian planet emits the lesser it stirs up its clouds making the atmosphere hotter. All of the four Jovian planets have unique atmospheres. They have more or less the same structures but they differ in their average temperature. As the distance of the planet is closer to the sun the atmosphere would be cooler. These planets are Jupiter, Saturn, Uranus and Neptune. They do not have a solid structure instead they are primarily composed of helium and hydrogen which makes them gas giants or ice planets. They are larger in size than the remaining planets in the solar system. 
7 0
3 years ago
Please help answer this
ddd [48]
I believe the answer is the white dwarf.

The sun will cool then heat up again is my understanding. Hope this helps
3 0
3 years ago
in which item is energy stored in the form of gravitational potential energy A)a slice of bread B)a compressed string C)an apple
olchik [2.2K]

For this case, in the next item we have gravitational potential energy:

An apple in a tree.

Suppose we define our reference system at the floor level.

Suppose the apple is at a height h from the floor and has mass m.

The gravitational potential energy of the apple is given by:

U = mgh

Where,

m: apple mass

h: height of the apple with respect to the floor

g: acceleration due to gravity

Answer:

C) an apple on a tree

7 0
4 years ago
Read 2 more answers
Question 2 (1 point)
Vesna [10]

Answer:

400m

Explanation:

use formula

velocity = displacement /time

8 0
3 years ago
A 81 kg man is riding on a 40 kg cart traveling at a speed of 2.3 m/s. He jumps off with zero horizontal speed relative to the g
Alexus [3.1K]

Answer:

\Delta v= 4.66\frac{m}{s}

Explanation:

In this case we have to use the Principle of conservation of Momentum:

<em>This principle says that in a system  the total momentum is constant if no external forces act in the system. The formula is:</em>

m_1v_1+m_2v_2=m_1u_1+m_2u_2

<em>Where:</em>

m_1: Mass of the first object.

m_2: Mass of the second object.

v_1: Initial velocity of the first object.

v_2: Initial velocity of the second object.

u_1: Final velocity of the first object.

u_2: Final velocity of the second object.

In <u>this problem</u> we have:

m_1=81kg\\m_2=40kg\\v_1_2=2.3\frac{m}{s}

u_1=0\frac{m}{s}

Observation: v_1_2: Is because the system has the same initial velocity.

First we have to find u_2,

m_1v_1+m_2v_2=m_1u_1+m_2u_2

We can rewrite it as:

(m_1+m_2)v_1_2=m_1u_1+m_2u_2

Replacing with the data:

(m_1+m_2)v_1_2=m_1u_1+m_2u_2\\\\(81kg+40kg)2.3\frac{m}{s}=81kg(0\frac{m}{s})+40kg(u_2)\\\\(121kg)2.3\frac{m}{s}=40kg(u_2)\\\\\frac{(121kg)2.3\frac{m}{s}}{40kg}=u_2\\\\\frac{278.3}{40}\frac{m}{s}=u_2\\\\6.96\frac{m}{s}=u_2

We found the final velocity of the cart, but the problem asks for the resulting change in the cart speed, this means:

\Delta v=u_2-v_2\\\Delta v=6.96\frac{m}{s}-2.3\frac{m}{s}\\\Delta v= 4.66\frac{m}{s}

Then, the resulting change in the cart speed is:

\Delta v= 4.66\frac{m}{s}

5 0
3 years ago
Other questions:
  • Hitting a ball off a tee would be considered which of the following?
    5·1 answer
  • The small currents in axons corresponding to nerve impulses produce measurable magnetic fields. a typical axon carries a peak cu
    13·1 answer
  • A car travels from point A to point B, moving in the same direction but with a non-constant speed. The first half of the distanc
    9·1 answer
  • Based on the wall of conservation of energy how can we reasonably improve a machines ability to do work?
    14·1 answer
  • a bag of books took 3 minutes to move you did 12900 j if work how much power was required to move the bad
    15·2 answers
  • Solve the following problem. A force of 5N is being applied to the right, and a force of
    11·1 answer
  • Can someone help me match the words?
    13·1 answer
  • A block of mass m is attached to ideal spring of constant k. When the spring is neither stretched nor compressed, block is at th
    14·1 answer
  • Equation h(t) = -5+ ²+ 30t
    8·1 answer
  • Lucy and Zaki each throw a ball at a target.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!