Any ideas for the science fair? I am a 7th grader but looking for a first-place type of project.Thanks!

Physics

1 answer:

mihalych1998 [28]3 years ago

7 0

U can do what is the strongest paper towel

You might be interested in

An unbanked (flat) curve of radius 150 m is rated for a maximum speed of 32.5 m/s. At what maximum speed, in m/s, should a flat

Rasek [7]

Answer:

The maximum speed is 21.39 m/s.

Explanation:

Given;

radius of the flat curve, r₁ = 150 m

maximum speed, $v_{max}$ = 32.5 m/s

The maximum acceleration on the unbanked curve is calculated as;

$a_c_{max} = \frac{V_{max}^2}{r} \\\\a_c_{max} = \frac{32.5^2}{150} \\\\a_c_{max} = 7.04 \ m/s^2$

the radius of the second flat curve, r₂ = 65.0 m

the maximum speed this unbanked curve should be rated is calculated as;

$a_c_{max} = \frac{V_{max}^2}{r_2} \\\\V_{max}^2 = a_c_{max} \ \times \ r_2\\\\V_{max} = \sqrt{a_c_{max} \ \times \ r_2} \\\\V_{max} =\sqrt{7.04 \ \times \ 65} \\\\V_{max} = 21.39 \ m/s$

Therefore, the maximum speed is 21.39 m/s.

3 0

3 years ago

Assume the objects listed below have the same velocity. Which object has the most kinetic energy? a bus a car a plane a bicycle

DaniilM [7]

A sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°C. If the system is at dynamic equilibrium, which of these statements is true?

4 0

3 years ago

Read 2 more answers

If someone throws a 3 gram fry accelerating at 5 meter/second2, what is the fry’s force?

marshall27 [118]

The net force on the fry is 0.015 N.

Explanation:

We can solve this problem by using Newton's second law of motion, which states that:

$F=ma$