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Harrizon [31]
2 years ago
11

A 650-kg roller coaster starts from rest at the top of a 80 m hill.

Physics
1 answer:
Flura [38]2 years ago
7 0

Answer:

or a roller coaster loop, if it were perfectly circular, we would have a minimum speed of vmin=√gR at the top of the loop where g=9.8m/s2 and R is the radius of the 'circle'. However, most roller coaster loops are actually not circular but more elliptical.

Explanation:

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Which are most likely to be used during a routine visit to the dentist?
Paraphin [41]

Answer:

The most likely items to be used are;

Ultrasound and X-rays

Explanation:

A routine visit to a dentist consists of two areas of activities, including;

a) Dental examination and check up

b) Oral prophylaxis, and dental cleaning

The dental examination may involve the use of X-rays, which allow the detection of cavities between the teeth

The dental cleaning can be carried out with the use of an ultrasound cleaner, which allow the cleaning of sensitive teeth without hurting the patient

Therefore, the items most likely to be used during a routine dental visit are ultrasound and X-rays

8 0
2 years ago
Read 2 more answers
The visible spectrum refers to the portion of the electromagnetic spectrum that we ________.
yKpoI14uk [10]
<h2>Answer: can see</h2>

Explanation:

The portion visible by the human eye of the electromagnetic spectrum is between 380 nm (violet-blue) and 780 nm (red) approximately.  Which  means this part of the spectrum is located between ultraviolet light and infrared light.  

Note the fact only part of the whole electromagnetic spectrum is visible to humans is because the receptors in our eyes are only sensitive to these wavelengths.

Therefore:

<h2>The visible spectrum refers to the portion of the electromagnetic spectrum that <u>we </u><u>can see</u></h2>
8 0
3 years ago
Jupiter nudges the asteroids through the influence of:.
strojnjashka [21]
Orbital resonances.

Hope this helps!
Please give Brainliest!
4 0
2 years ago
A tow truck exerts a force of 3000 N on a car, accelerating it at 2 m/s2. What is the mass of the car?
VARVARA [1.3K]
The answer is <span>C. 3000 kg.</span>
5 0
3 years ago
Read 2 more answers
The density of this material is 2 g/cm3 there are 24 cm3 find the total mass
Fynjy0 [20]

Answer:

<h2>The answer is 48 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 2 × 24

We have the final answer as

<h3>48 g</h3>

Hope this helps you

7 0
3 years ago
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