I need help but fast

2)

Rashid [163]

900J

Explanation:

Given parameters:

Specific heat of the aluminium = 900Jkg⁻¹K⁻¹

Mass of aluminium = 0.5kg

temperature change = 2K

Unknown:

Quantity of heat = ?

Solution:

The quantity of heat a body absorbs to cause a change in temperature is given as:

H = mcΘ

H is the quantity of heat

m is the mass of the substance

c is the specific heat capacity

Θ is the temperature change

H = 0.5 x 2 x 900 = 900J

learn more;

Specific heat brainly.com/question/7210400

#learnwithbrainly

3 0

4 years ago

How are volcanodistributed ?

MrRissso [65]

Answer:

Volcanoes are not randomly distributed over the Earth's surface. Most are concentrated on the edges of continents, along island chains, or beneath the sea forming long mountain ranges. ... Major tectonic plates of the Earth. Only a few of the Earth's active volcanoes are shown

4 0

3 years ago

Read 2 more answers

Which major checkpoint delays the cell cycle when dna replication is incomplete?

RoseWind [281]

G1 checkpoint
.......................

5 0

4 years ago

When randomly selecting an adult, a denotes the event of selecting someone with blue eyes. What do and represent?.

Mrac [35]

P(A) represents <u>the probability of selecting an adult with blue eyes.</u>

P(Ā) represents <u>the probability of selecting an adult who does not have blue eyes.</u>

<h3>What is probability?</h3>

Probability is a measure of how likely an event is to occur. Many events are impossible to predict with absolute certainty. We can only predict the chance of an event occurring, i.e., how likely it is to occur, using it. Probability can range from 0 to 1, with 0 indicating an impossible event and 1 indicating a certain event. The probability of all events in a sample space equals one.

$Probability of event to happen P(E) = Number of favourable outcomes/Total Number of outcomes$

There are three major types of probabilities:

Theoretical Probability
Experimental Probability
Axiomatic Probability

<h3>What is Theoretical Probability?</h3>

It is based on the possible chances of something to happen. The theoretical probability is mainly based on the reasoning behind probability. For example, if a coin is tossed, the theoretical probability of getting a head will be ½.

<h3>What are Complementary Events?</h3>

The possibility that there will be only two outcomes, stating whether or not an event will occur. Examples of complementary events include a person coming or not coming to your house, getting a job or not getting a job, and so on. Essentially, the complement of an event occurring in the exact opposite probability that it will not occur. Here are some more examples: