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
Irina18 [472]
4 years ago
11

Identify one harmful environmental change that occurs when a volcano erupts.

Physics
1 answer:
klasskru [66]4 years ago
5 0
Many ecosystems and plants are damaged or destroyed when a volcano erupts.
You might be interested in
A block of iron at 33.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperatur
spayn [35]

Answer:

66.8°C

Explanation:

dQ = m*cp*dT where:

m = mass of block

cp = specific heat of iron

dT = temperature change

-------

dQ = 3.5 10^4 J

cp = 0.45 Kj / Kg = 450 J / Kg

3.5 10^4 = 2.3 * 450 * dt-----dt = 35000 / 450 * 2.3 = 33.8 °

-------

Final temperature = 33 + 33.8 = 66.8 °C

3 0
3 years ago
A projectile of mass 9.6 kg is launched from the ground with an initial velocity of 12.4 m/s at angle of 54° above the horizonta
Temka [501]

Answer:

The location is at (3.535, 1.162) m

Solution:

As per the question:

Mass of the projectile, m = 9.6 kg

Initial velocity, v = 12.4 m/s

Angle, \theta = 54^{\circ}

Mass of one fragment, m = 6.5 kg

Time taken by the fragment, t = 1.42 s

Height of the fragment, y = 5.9 m

Horizontal distance, x = 13.6 m

Now,

To determine the location of the second fragment:

Horizontal Range, R = \frac{v^{2}sin2\theta}{g}

R = \frac{12.4^{2}sin2(54)}{9.8} = 14.92\ m

Time of flight, t' = \frac{2vsin\theta}{g} = \frac{2\times 12.4sin108}{9.8}= 2.406\ s

Now, for the fragments:

Mass of the other fragment, m' = M - m = 9.6 - 6.5 = 3.1 kg

Distance traveled horizontally:

s_{x} = vcos\theta = 12.4cos54^{\circ}\times 1.42 = 10.35\ m

Distance traveled vertically:

s_{y} = vcos\theta - \frac{1}{2}gt^{2}

s_{y} = 12.4sin54^{\circ}\times 1.42 -  \frac{1}{2}\times 9.8\times 1.42^{2} = 14.25 - 9.88 = 4.37\ m

Now,

s_{x} = \frac{mx + m'x'}{M}

10.35= \frac{6.5\times 13.6 + 3.1x'}{9.6}

x' = 3.535 m

Similarly,

s_{y} = \frac{my + m'y'}{M}

4.37= \frac{6.5\times 5.9 + 3.1y'}{9.6} = 1.162\ m

The location of the other fragment is at (3.535, 1.162)

5 0
4 years ago
If you were sitting on the couch and someone said, “You have no energy.” Would you agree or disagree with this statement
Allisa [31]
I would disagree with that statement.

3 0
3 years ago
Read 2 more answers
When a wire is made smaller, the resistance increases. Which happens to the electric current?
Lelu [443]

When a wire is made shorter, the resistance decreases.

When a wire is made thinner, the resistance increases.

8 0
4 years ago
If an object is moving, then the magnitude of its ____ cannot be zero.
Bad White [126]
If an object is moving, then its speed and the magnitude
of its velocity aren't zero. 

If its velocity is constant (speed doesn't change and it's
moving in a straight line), then its acceleration is zero.

Looks like choice-D sums it up nicely.
7 0
3 years ago
Other questions:
  • A slinky is stretched by two forces. When the forces are removed, the slinky returns to its original length. The slinky has been
    5·1 answer
  • If a golf ball and a bowling ball are moving and both have the same genetic energy if they move at the same speed which one has
    13·1 answer
  • You are in a rocket moving away from Earth at one-third the speed of light relative to Earth. A friend is on Earth, and an astro
    5·1 answer
  • A thin, square metal plate measures 14 cm on each side and has emissivity of 0.60. The plate is heated to a temperature of 745°C
    9·1 answer
  • A 112 g hockey puck glides across a frictionless ice surface with no horizontal forces acting on it. If the puck's velocity is 2
    9·1 answer
  • Which combination of temperature and pressure correctly describes standard temperature and pressure
    7·1 answer
  • Which of the following is a variable property for a gas? Select all that apply.
    15·1 answer
  • AQ5. What is a car’s speed in m/s if it travels: Remember to write the speed number WITH the correct unit.
    8·1 answer
  • If two bodies have different forces but same acceleration and only one force is known how do I find the other one?
    13·1 answer
  • How many joules is 3 lightning bolts?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!