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1 year ago

A bumper car is moving at 5 mph. It crashes into another bumper car. What happens to the energy of the bumper car?

2 answers:

8 0

Question:A bumper car is moving at 5 mph. It crashes into another bumper car. What happens to the energy of the bumper car?

Answer: The bumper cars. This law, the law of interaction, says that if one body exerts a force on a second body, the second body exerts a force equal in magnitude and opposite in direction on the first body. It's the law of action-reaction, and it helps to explain why you feel a jolt when you collide with another bumper car.The collision between two bumper cars can redistribute their total energy, but it can't change that total. Unfortunately, the collision between bumper cars can and does grind up some of their ordered energy into thermal energy.

Explanation: When a car hits something at a low speed, the bumper will press backward to use the crumple zone to soften the impact as the foam and fenders absorb the energy.More severe impacts will cause the bumper to split open, dent, or crumple inward. An impact can also damage the hooks that attach the bumper to your car. In this situation, one end of the bumper may sag awkwardly or drag along the ground. If both hooks break, your entire bumper assembly may simply fall off.

ycow [4]1 year ago

6 0

Answer:

i love your mom and your mom loves me lol hahahahahahhahs ejjrjrjrjr jdjrhr

your mom

Explanation:

1+2=3

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The human body has many types of cells. For example, muscle tissue and skin have different kinds of cells.

Contact [7]

E. One cell contains more mitochondria than the other.

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2 years ago

A plant is always considered a(n)<br> -<br> -

natka813 [3]

Answer:

Plants are mainly multicellular, of the kind exemplified by trees, shrubs, herbs, grasses, ferns, and mosses, typically growing in a permanent site, absorbing water and inorganic substances through its roots, and synthesizing nutrients in its leaves by photosynthesis using the green pigment chlorophyll.

Explanation:

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2 years ago

If the cells stop dividing and do not spread the tumor is

lana66690 [7]

If the cells stop dividing and do not spread, the tumor is benign

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3 years ago

Symbolic interactionists see society as being continually reconstructed by individuals through their use of ______

podryga [215]

Symbolic interactionists see society as being continually reconstructed by individuals through their use of shared symbols.

<h3>What is symbolic interactionism?</h3>

Symbolic interactionism is a method used to describe human interactions by focusing on the meanings that individuals assign to objects in the world around them such as writings and figures or structures.

Those who study symbolic interactionism are known as symbol interactionists.

Symbol interactionists see human behavior in terms of the symbols which they share.

In conclusion, symbols are part of human society.

Learn more about symbol interactionism at: brainly.com/question/2125966

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7 0

2 years ago

When pink sweet peas were self-pollinated and the seeds were collected and sown, the following flower colors were obtained: Red

Pavlova-9 [17]

Answer:

c. 1:2:1

The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.

Explanation:

If flower color were determined by a gene showing incomplete dominance, the possible genotypes and phenotypes are as follows:

RR- red
ww - white
Rw - pink

If pink sweet peas are self-pollinated, then a cross between two heterozygous individuals is done (Rw x Rw).

<u>From this cross the expected ratios are:</u>

1/4 RR (red)
2/4 Rw (pink)
1/4 ww (white)

So the null hypothesis is that the observed results exhibit a 1:2:1 ratio.

<h3><u>Chi square test</u></h3>

$X^{2} = \sum \frac{(Observed - Expected)^2}{Expected}$

<u>The observed frequencies were:</u>

34 Red
76 Pink
40 White

Total 150

<u>The expected frequencies for our null hypothesis are:</u>

1/4 x 150 = 37.5 Red
2/4 x 150 = 75 Pink
1/4 x 150 = 37.5 white

$X^{2} = \frac{(34- 37.5)^2}{37.5} + \frac{(76- 75)^2}{75} + \frac{(40- 37.5)^2}{37.5}$

$X^2=0.5067$

The degrees of freedom (DF) are calculated as number of phenotypes - 1; in this case DF = 3-1 = 2.

If we look at the Chi square table, for 2 DF and a probability of p0.05, the critical value is 5.991

Our X^2 value of 0.5067 is less than the critical value, so we do not reject the null hypothesis. The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.

8 0

3 years ago