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3 years ago

HEre now can somebody help!! Pic is what i need help with

Physics

2 answers:

AleksAgata [21]3 years ago

8 0

Answer:

which of the cars are speeding up: c

which of the cars or slowing down: a

which of the cars are maintaning a constant speed: b

Explanation:

VMariaS [17]3 years ago

3 0

Answer:

Explanation:

I gave a good enough explanation in your other posting. I'm sorry that I'm eating up your points.

The orange line is speeding up

The blue line is neither speeding up nor slowing down. It's speed is constant.

The green line is starting from 4 m/s and is slowing down to 0.

The diagram helps a lot. Thank you for that.

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What is the difference between observation and hypothesis

jekas [21]

Answer:

Observation- The action or process of observing something or someone carefully or in order to gain information.

Hypothesis-a proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Explanation:

8 0

3 years ago

A heavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. When the wind

Yuliya22 [10]

As we know that fundamental frequency is given as

$f = \frac{1}{2L}\sqrt{\frac{T}{\mu}}$

here we know that

$\mu = \frac{m}{l}$

here we have

m = mass of wire = 5 g

l = length of wire = 90 cm

$\mu = \frac{0.005}{0.90} kg/m$

$\mu = 5.56 \times 10^{-3} kg/m$

from above formula now

$80 = \frac{1}{2(0.90)}\sqrt{\frac{T}{5.56\times 10^{-3}}}$

$144 = \sqrt{180 T}$

$T = 115.2 N$

now we know that tension is due to weight of the sculpture so we will have

$Mg = 115.2 N$

$M = 11.76 kg$

so its mass will be 11.76 kg

6 0

4 years ago

A 200kg bumper car moving 3 m/s collides head on with a 392kg bumper car moving 6m/s. After impact, the larger car continues tra

Maru [420]

Answer:

the final speed of the smaller car is 5.624 m/s

Explanation:

Given;

mass of the small car, m₁ = 200 kg

initial velocity of the small car, u₁ = 3 m/s

mass of the larger car, m₂ = 392 kg

initial velocity of the larger car, u₂ = 6 m/s

final velocity of the larger car, v₂ = 1.6 m/s

let the direction of the larger car be positive

let the direction of the smaller car be negative

Apply the principle of conservation of linear momentum to determine the final speed of the smaller car.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

200(-3) + 392(6) = 200v₁ + 392 x 1.6

-600 + 2352 = 200v₁ + 627.2

1752 = 200v₁ + 627.2

1752 - 627.2 = 200v₁

1124.8 = 200v₁

v₁ = 1124.8/200

v₁ = 5.624 m/s

Therefore, the final speed of the smaller car is 5.624 m/s

7 0

3 years ago

On her camping trip, Penelope was in charge of collecting firewood. The firewood she found had a mass of 120 g and a volume of 4

zloy xaker [14]

From the formula: density=mass/volume
But first, we have to convert the cm³ to m³ by multiplying the value in cm³ by 10^-6, by so doing we'll have the volume to be 0.48*10^-3cm³.
we will also need to convert the mass which is in g to kg by simply dividing by 1000 so the mass becomes 0.12kg
Now we can solve for the density using the formula I earlier stated which is the mass divided by the volume =0.12/0.48*10^-3 so the density will be 0.25*10^3kgm-3 or 2.5*10^2kgm-3

3 0

3 years ago

This is for Criminal Law:

tigry1 [53]

No it not because
Jill didn’t have actually have the gun

8 0

3 years ago