All categories

2 years ago

Calculate the kinetic energy of a 4 kg object moving at 10 m/s.

Biology

1 answer:

Elanso [62]2 years ago

5 0

Answer:

K.E = 200J

Explanation:

Kinetic Energy = $\frac{1}{2}$ $mv^{2}$

here m = mass and v = velocity of moving object

where m = 4kg and v =10m/s

=> K.E = 1/2(4*10^2)

=> K.E = 1/2(4*100)

=> K.E = 400/2

=> K.E = 200J

You might be interested in

The field of psychology is a collection of diverse subfields. Psychologists who conduct ____________ research contribute by expa

serious [3.7K]

Answer:

d. basic; applied

Explanation:

The basic research is a type of research that mainly aims to increase the existing base of the scientific knowledge and hence, in the case of psychology the basic research would increase the knowledge about psychology.
Therefore, the purpose of basic research is to add up to the knowledge that already exists.
The research that is conducted to especially solve certain problems or answer specific questions is called applied research. Its main aim is to find out the solution for a given problem.
Therefore, in the case of psychology applied research is conducted to explore practical problems.

8 0

2 years ago

Which two pieces of data indicate that Uranus resides in the outer region of the solar system?

dimaraw [331]

It is D & E. Uranus is Helium & Hydrogen, And it has dark rings

6 0

3 years ago

Discuss one of the major issues in toxicology from any perspective.

tangare [24]

A controversial issue of toxicology is the use of chemical additives in food.

Food additives are substances intentionally added to foods for the purpose of preserving, enhancing or modifying their physical, chemical, biological or sensory properties without impairing their nutritional value. However, it is necessary to control the use of these substances, as ingestion of these substances may pose health risks.

Additives are found in most processed foods, such as cookies, breakfast cereals, soft drinks, jellies, artificial juices, candies and a host of other foods in the diet of Brazilians, especially children.

Thus, its consumption should be controlled, as the health risk is confirmed by a sum of scientific studies. The three main ills associated with excessive consumption of these substances are cancer, food hypersensitivity and attention deficit hyperactivity disorder.

Some audiences are even more vulnerable to consumption, such as pregnant women, the elderly, people with little food and children under three years. In the case of children the attention should be greater because the digestive and urinary systems are not yet fully prepared to process these substances.

The more industrialized the product, the more chemical additives it will have. The ideal is to prepare fresh products at home. However, as is often not possible, it is important that you read the label and choose the products with the least additives.

8 0

3 years ago

How long after water breaks should baby be delivered

sergey [27]

Answer:

where your baby is at least 37 weeks

Explanation:

In cases where your baby is at least 37 weeks, current research suggests that it may be safe to wait 48 hours (and sometimes longer) for labor to start on its own. (But your caregiver may have a different protocol, like 24 hours.)

5 0

2 years ago

Toemas’s syndrome is a autosomal dominant disease, homozygous lethal, seen at a frequency of 1 in 10,000 cats. Felines with this

Anastaziya [24]

Answer: 50% or 25% according to the genotype of the male cat.

Explanation:

The female cat is unaffected, and since this is an autosomal dominant diease, it means this cat does not have any affected alleles. Thereby, its genotype is aa. This is because dominant alleles show their effect even if the organisms only has one copy of the allele. The male cat is affected with this syndrome so its genotype is either AA or Aa. For this disease to manifest itself, only one affected allele is needed. Although both alleles can be affected so the individual can be homozygous dominant or heterozygous.

To find this we have to do a punnett square. Here, we use the gametes produced by each individual. Gametes are sex cells, egg or sperm, which only have one allele of each gene.

Assuming that the cross is between aa and AA, the gametes produced by "aa" are "a", and the gametes produced by "AA" are "A" So we are having a cross between an "a" gamete and a "A" gamete. 100% of the offspring will be Aa so it is a heterozygous, which will develope this syndrome. And, males have one Y chromosome and one X chromosomes, thereby the chances of having a male kitten is 50%. Then, to conclude, there is a 50% chances of having a male kitten with this syndrome.

And, assuming that the cross is between aa and Aa, the gametes produced by "Aa" are "A" but also "a" So we are habing a cross between an "a" gamete and "A" or "a" gamete (See picture) In this example, there is a 50% chances of having a kitten with the syndrome, because only one genotype produced (Aa) has the affected allele. And, as we said before, since there is a 50% chances of having a male kitten, we can said that there is a 25% chances of having an affected male. Because to calculate both probabilities so that they occur simultaneously, it is necessary to multiply them. That is, 0.5 x 0.5 = 0.25 x 100 = 25%.

8 0

3 years ago