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Elina [12.6K]
3 years ago
5

Instructions:Select the correct answer. What falls in the gray area between living and nonliving things? bacteria mold virus yea

st
Physics
2 answers:
viva [34]3 years ago
6 0
Virus. it's only living when it enters a host's body as it's a parasitic organism
Scilla [17]3 years ago
3 0

Answer:

virus

Explanation:

Viruses are considered organisms at the limit of life. On the one hand they resemble organisms that have genes and evolve by natural selection and reproduce by creating multiple copies of themselves. However, they lack cellular structure, which is the pillar of life. It can only multiply within the cells of other organisms.

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natta225 [31]

Answer:

maybe it is the first one

7 0
3 years ago
Suppose a yo-yo has a center shaft that has a 0.230 cm radius and that its string is being pulled.
Fofino [41]

Answer:

Part a)

\alpha = 782.6 rad/s^2

Part B)

\omega = 587 rad/s

Part c)

a_t = 24.3 m/s^2

Explanation:

Part a)

As we know that

a = R \alpha

so we will have

a = 1.80 m/s^2

R = 0.230 cm

\alpha = \frac{a}{R}

\alpha = \frac{1.80}{0.230 \times 10^{-2}}

\alpha = 782.6 rad/s^2

Part B)

Angular speed of the yo-yo

\omega = \alpha t

so we have

\omega = 782.6 \times 0.750

\omega = 587 rad/s

Part c)

Tangential acceleration is given as

a_t = R \alpha

a_t = (3.10 \times 10^{-2})(782.6)

a_t = 24.3 m/s^2

6 0
3 years ago
Proyektil dengan massa 10 gram ditembak dari senapan dengan massa 5 kg. Kecepatan proyektil sesaat setelah memotret dari laras a
notka56 [123]

Answer:

-0.4 m/s

Explanation:

According to the law of conservation of momentum, the total momentum of the bullet - rifle system must be conserved.

The total momentum before the shot is zero, since they are both at  rest:

p_i = 0

While the total momentum after the shot can be written as:

p_f = mv+MV

where

m = 10 g = 0.010 kg is the mass of the bullet

M = 5 kg is the mass of the rifle

v = 200 m/s is the velocity of the bullet

V is the recoil velocity of the rifle

Since the total momentum is conserved, we can write:

p_i = p_f

So

0=mv+MV

And solving for V, we find the recoil velocity:

V=-\frac{mv}{M}=-\frac{(0.010)(200)}{5}=-0.4 m/s

and the negative sign indicates that the velocity is opposite to the bullet.

7 0
3 years ago
What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg?
Aleksandr [31]
The answer is 3000 × 2 = 6000 N
5 0
2 years ago
Before scientists come up with a scientific question, what do they have to do first?
Mademuasel [1]
Scientist would check what other scientists have said before they come up with their own scientific question. That way they can record the results from the others and compare them with their own findings when they conduct their own experiments and record the findings.
8 0
3 years ago
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