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3 years ago

When conducting an investigation outside, you can assume it is safe to touch my plant or animal you see.

Physics

1 answer:

noname [10]3 years ago

4 0

False, all scene are combed for clues and photographed.

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Which of the following color schemes (specifically in jewel tones) is on-trend for 2020?

stiks02 [169]

Answer:

The answer is B complimentary

Explanation:

3 0

3 years ago

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A(n) 1400-kg car going at 6.32 m/s in the positive x direction collides with a 2900-kg truck at rest. The collision is totally i

tresset_1 [31]

Answer:

a) Acceleration of the car is given as

$a_{car} = -21 m/s^2$

b) Acceleration of the truck is given as

$a_{truck} = 10.15 m/s^2$

Explanation:

As we know that there is no external force in the direction of motion of truck and car

So here we can say that the momentum of the system before and after collision must be conserved

So here we will have

$m_1v_1 + m_2v_2 = (m_1 + m_2)v$

now we have

$1400 (6.32) + 2900(0) = (1400 + 2900) v$

$v = 2.06 m/s$

a) For acceleration of car we know that it is rate of change in velocity of car

so we have

$a_{car} = \frac{v_f - v_i}{t}$

$a_{car} = \frac{2.06 - 6.32}{0.203}$

$a_{car} = -21 m/s^2$

b) For acceleration of truck we will find the rate of change in velocity of the truck

so we have

$a_{truck} = \frac{v_f - v_i}{t}$

$a_{truck} = \frac{2.06 - 0}{0.203}$

$a_{truck} = 10.15 m/s^2$

5 0

3 years ago

An object has an angular velocity. It also has an angular acceleration due to torques that are present. Therefore, the angular v

shusha [124]

Answer:

α = 0 , w = w₀

Explanation:

Torque is related to angular acceleration by Newton's second law for rotational motion.

τ = I α

Where τ is the torque, I the moment of inertia and α the angular acceleration.

If we apply an external torque for the sum of all torques to be zero, the angular acceleration must fall to zero

α = 0

Since the acceleration is zero, the angular velocity you have at that time is constantly killed.

w = w₀ + α t

w = w₀ + 0

8 0

3 years ago

A 1610 kg car is traveling east at 22. m/s and a 3100. kg minivan traveling west at a speed of 11.0 m/s

Schach [20]

Answer:

Im pretty sure its 11 m/s east because it is 22 m/s hitting 11 m/s and the force is harder hitting

Explanation:

im not 100% sure becasue i did this stuff a while ago

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2 years ago

Which statement about the heliocentric theory is correct?

finlep [7]

Answer:

4 should be right

Explanation:

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3 years ago

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