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3 years ago

Introducing to work and energy

1 answer:

5 0

Answer: work and energy are closely related to Newton's laws of motion. You shall see that the energy of an object is its capacity to do work and doing work is the process of transferring energy from one object or form to another by means of a force.

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An organism ingests a toxin that damages the mitochondria of its cells.

marysya [2.9K]

The answer is C creating proteins and ik this because I had the same answer and my teacher helped me

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3 years ago

What is a balanced chemical equation

Sladkaya [172]

Answer:

is the amount of reactants must equal to the amount of products

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3 years ago

Describe the difference in shape of two ice pieces

Rasek [7]

1. Nuggets (AKA: Sonic Ice)

Nugget-shaped ice tends to be soft and chewy. One of the benefits to this type of ice is that the drink it is mixed with tends to keep its flavor well. This makes nugget ice great for food service. The nuggets tend to not stick together and lasts for a good amount of time in any drink.

Nugget ice is the ideal choice for carbonated drinks and blended cocktails, but also works great in salad bars and produce displays to keep food cool.

2. Flakes

You might be familiar with ice flakes as they are often found in snow cones. Not only does this ice look good, but it also serves well to preserve food on display, such as seafood, meat, and produce.

Ice flakes are great for display because they help to maintain the hydration of the food more consistently for longer periods of time. For this reason, it is also a good ice shape choice for transporting perishable food. This is also the ideal ice type for making blended drinks, as the ice is soft, flaky and easier to blend.

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4 years ago

Two cars start a race with initial velocity 7ms-1 and 4ms-1 respectively.Their acceleration are 0.4ms-2 and 0.5ms-2 respectively

Ronch [10]

The distance of the track is 600 m

Explanation:

The two cars move by uniformly accelerated motion, so we the distance they cover after a time t is described by the following suvat equation

$d=ut+\frac{1}{2}at^2$

where

u is the initial velocity

a is the acceleration

For car 1, we have

$d_1 = u_1 t + \frac{1}{2}a_1 t^2$

where

$u_1 = 7 m/s$ is the initial velocity of car 1

$a_1 = 0.4 m/s^2$ is the acceleration of car 1

So the equation can be rewritten as

$d_1 = 7t + 0.2t^2$

For car 2, we have

$d_2 = u_2 t + \frac{1}{2}a_2 t^2$

where

$u_2 = 4 m/s$ is the initial velocity of car 2

$a_2 = 0.5 m/s^2$ is the acceleration of car 2

So the equation can be rewritten as

$d_2= 5t + 0.25t^2$

The two cars finish the race at the same time: this means that they cover the same distance in the same time t, so we can write

$d_1 = d_2\\7t + 0.2t^2=5t + 0.25t^2$

And solving for t, we find

$2t - 0.05t^2= 0\\t(2-0.05t)=0$

Which gives two solutions:

t = 0 (initial instant)

t = 40 s

Therefore, the distance of the track is

$d_1 = 7t +0.2t^2 = 7\cdot 40+0.2\cdot 40^2=600 m$

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

7 0

4 years ago

It is safer for a car driver to be wearing a seat belt, compared with not wearing a seat belt, if the car is involved in a colli

Korolek [52]

Explanation: It is because when a car is moving both the car and the driver is in inertia of motion. When a car is involved in collision it comes to a sudden stop and the car comes into inertia of rest whereas the person still in inertia of motion moves forward and might result in major injuries. But this can be prevented by wearing a seatbelt

Hope it helps :)

8 0

3 years ago