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egoroff_w [7]
4 years ago
7

A young woman was found dead on the side of the road. Two witnesses said they saw and red cadillac hit her and drive off earlier

that evening. Forensic investigators collected glass samples found on the victims body. a few hours later, police found what they thought to be the car in question: a red cadillac with a broken headlamp. they collected glass samples from the headlight.
Forensic Experts would use all BUT ONE analysis technique to help match the glass samples. That would be

a) density
b) shatter pattern
c) refractive index
d. microscopic examinat
Physics
1 answer:
nignag [31]4 years ago
7 0
I think the answer would be A. Density because many headlights could have the same density, but the rest of the analysis techniques would be specific to that crime.
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Convert 11 ppm into a percent
Tanya [424]
To convert ppm to percent, you divide the ppm by 10,000.

x / 10000 = x%

So, 11 ppm is 11/10000 or 0.0011%.
7 0
4 years ago
An elevator filled with passengers has a mass of 1603 kg. (a) The elevator accelerates upward from rest at a rate of 1.20 m/s2 f
Galina-37 [17]

Answer:

T = 17649.03 N = 17.65 KN

Explanation:

The tension in the cable must be equal to the apparent weight of the passenger. For upward acceleration:

T = W_A = m(g+a)\\

where,

T = Tension in cable = ?

W_A = Apparent weight

m = mass = 1603 kg

g = acceleration due to gravity = 9.81 m/s²

a = acceleration of elevator = 1.2 m/s²

Therefore,

T = (1603\ kg)(9.81\ m/s^2+1.2\ m/s^2)\\\\

<u>T = 17649.03 N = 17.65 KN</u>

8 0
3 years ago
A car travelling on a straight road initially at 45 km/h accelerates for 5.0 s at a constant acceleration of 8.0 m/s2. What is t
lara31 [8.8K]

Answer:

52.5m/s

Explanation:

u=45km/hr=45×1000/60×60=12.5

t= 5 sec

a=8m/s^2

v=?

Now,

v=u+at

v=12.5+8×5

v=52.5

5 0
4 years ago
Which of the following describes the relationship between work and power?
Vinvika [58]

Answer: The answer is B

Explanation:

Work can be defined as the energy that is required to apply a force to an object in order to move it from one point to another. In physics, work = force x distance travelled. On the other hand, Power is the work done per time. In other words, it the rate at which work is done and is determined by using the formula, Power = Work/time. In these relationships, it can be seen that power is directly proportional to the amount of work done, hence as power increases, more work is done.

6 0
4 years ago
Why is the center of Newton's ring dark?
Law Incorporation [45]

Answer:

Cause, The thickness of the windshield formed between the glass and the lens is zero.

4 0
2 years ago
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