Which type of weather event is caused by a tropical low-pressure system with strong, sustained winds?

Answers

Answer 1
Answer: Tropical storm would be the answer.

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Formed when wind travels into a low pressure area from opposite directions and creates a spinning storm
What is the moment of the couple formed by the two forces applied to the corners b and d of a rectangular plate, given that p = 88-n? Resolve each force into horizontal and vertical components, and add the moments of the resulting couples?

What is the most important reason to control the condition of a experiment

Answers

The most important reason to control the conditions of an experiment is to make sure that the environment is affecting the results of the experiment--which would void the study. 

Two of the three tuning forks have known frequencies. When a 510 Hz. fork and the unknown fork are struck together, four beats per second are heard. When a 505 Hz. fork is struck with the unknown fork, beats are produced that are too numerous to count accurately. What is the frequency of the unknown fork?

Answers

4 Hz is the difference between 510 and the unknown. 
Therefore the unknown is either 514 or 506. 

If 505 and 506 were struck together, the diff would be 1 Hz 
If 505 and 514 were struck toghether, the diff would be 9 Hz which would be difficult to count accurately, 

Therefore the unknown is 514

Answer:

514Hz

Explanation:

510 - unknown = 4Hz

unknown = 514 or 506

505 - unknown = numerous

unknown is most likely 514 because 1 beat that wouldve resulted from the 506 Hz isn't numerous.

In a nuclear fusion reaction, what state is matter in?a. gas
b. solid
c. liquid
d. plasma

Answers

the matter is in chemical plasma
 

Alternatively d)


I hope I was helpfull




Answer:

plasma

Expl

This other guy said it was plasma

Ferns are located in which zone of deciduous forests?a. tree stratum
b. small tree and sapling
c. shrub
d. herb

Answers

A fern is a vascular plant that have neither seeds nor flowers. Fern spieces live in the variety of habitats: shady forests, acid wetlands and tropical areas. Tree stratum zone contains the tallest trees. The small tree zone is lower than tree stratum zone. The shurb zone contains schurbs which grow the food for animals. Finally, the herb layer is made up of wildflowers and ferns. Answer: D ) Herb zone.
D. Herb
I hope that helps! :)

Ixchelt burns her tongue when she takes a sip of hot coffee from her mug. Which part of this example represents heat?

Answers

This question comes along with four answer choices:

a) the thermal energy moving from the coffee to her tongue

b) the thermal energy moving from her tongue to the coffee

c) her coffee

d) her tongue

Answer: a) the thermal energy moving from the coffee to her tongue.

Explanation:

Heat, heat energy and thermal energy are terms to refer the same thing.

Heat is the kinetic energy of the molecules or particles in a substance wich is transferred from hot substances to cool substances.

In the example, the coffe is hot and Ixchelt's tongue is cool, so the heat is the thermal energy transferred from the hot coffe to Ixtchel's tongue.

The thermal energy (heat) always flows from the hot to the cold, never the other way around.

Answer:

A

Explanation:

A is the answer

In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles (nuclei of helium atoms) from thin sheets of gold. An alpha particle, having charge 2e and mass 6.64 10-27 kg, is a product of certain radioactive decays. The results of the experiment led Rutherford to the idea that most of an atom's mass is in a very small nucleus, with electrons in orbit around it. Assume an alpha particle, initially very far from a stationary gold nucleus, is fired with a velocity of 1.50 107 m/s directly toward the nucleus (charge 79e). What is the smallest distance between the alpha particle and the nucleus before the alpha particle reverses direction?

Answers

Answer:

Explanation:

We shall apply conservation of mechanical energy

kinetic energy of alpha particle is converted into electric potential energy.

1/2 mv² = k q₁q₂/d , d is closest distance

d = 2kq₁q₂ / mv²

= 2 x 9 x 10⁹ x 79e x 2e / 4mv²

= 1422 x2x (1.6 x 10⁻¹⁹)² x 10⁹ /4x 1.67 x 10⁻²⁷ x (1.5 x 10⁷)²

= 3640.32 x 10⁻²⁹ /2x 3.7575 x 10⁻¹³

= 484.4 x 10⁻¹⁶

=48.4  x 10⁻¹⁵ m