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3 years ago

Foods that allow microorganisms to grow are called parasites. true or false

1 answer:

8 0

<span>False. Foods that are improperly stored become what is known as a growth medium for microorganisms. These foods can be dangerous to humans and animals, and while they may cause an internal parasite to be able to grow, such as a tape worm, they are not in and of themselves parasites. Parasites are an organism that feeds off of, or is parasitic, and sustains life from another living organism. Such as a flea feeding off the blood of a dog or cat.</span>

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Help please! Thanks so much!

qaws [65]

You pretty much just have to convert and be mindful of significant figures.

5 km = 3 miles
0.3 cm = 0.12 in

4 0

3 years ago

Suppose that Lisa walks her dog around the block for a little exercise. The block is 1 mile around. If she walks around the bloc

Alina [70]

Displacement is defined as the net distance traveled through the entire trip. That is to say, if you compared where you are at the end of the walk to where you were at the start, the displacement is the distance between those two points.

Distance doesn't compare the two end points. It just counts the total distance you've walked throughout your trip.

Lisa walks once around the block. She starts and ends at the same place. Her displacement is therefore 0 m.

But she has walked 1 mile throughout the trip. Her distance walked is therefore 1 mile.

4 0

3 years ago

(5 pt) You tie a cord to a pail of water, and your swing the pail in a vertical circular 0.700 m. What is the minimum speed must

Bas_tet [7]

Answer:

The minimum speed required is 2.62m/s

Explanation:

The value of gravitational acceleration = g = 9.81 m/s^2

Radius of the vertical circle = R = 0.7 m

Given the mass of the pail of water = m

The speed at the highest point of the circle = V

The centripetal force will be needed must be more than the weight of the pail of water in order to not spill water.

Below is the calculation:

$\frac{mV^{2}}{R} = mg$

$V = \sqrt{gR}$

$V = \sqrt{9.81 \times 0.7}$

$V = 2.62 m/s$

6 0

3 years ago

A mixing blade on a food processor extends out 3 inches from its center. if the blade is turning at 600 revolutions per minute,

7nadin3 [17]

First let's convert everything into SI units.
The length of the blade is 3 inches. Keeping in mind that 1 inc=0.025 m, we have
$L=3 in \cdot 0.025 \frac{m}{inc} =0.075 m$
The angular speed is 600 revolutions per minute. Keeping in mind that $1 rev=2 \pi rad$ and $1 min=60 s$ , the angular speed becomes
$\omega = 600 \frac{rev}{min} \frac{2 \pi rad/rev}{60 s/min}=62.8 rad/s$

And so, the linear velocity of the edge of the blade is equal to
$v=\omega L=(62.8rad/s)(0.075 m)=47 m/s$

8 0

3 years ago

Read 2 more answers

2. Anton hits a 0.09kg ball giving its speed of 75m/s.What impulse does he impart to the ball?

alisha [4.7K]

The import is equal to the final moment of the board or the moments are imported to the ball from the player

4 0

3 years ago