3 years ago

!!! HELP!!! HELL GELP HELP HELP

Physics

2 answers:

Reptile [31]3 years ago

8 0

It’s supernova...............

4vir4ik [10]3 years ago

5 0

Answer:

supernova

Explanation:

You might be interested in

A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 500 g ball? ____m/s

Vlada [557]

Answer: 16.5 m/s

Explanation:
By law of conservation of energy:

$\frac{kx^2}{2} = \frac{mv^2}{2}$ --- (1)

Since k = Spring Constant = 850 N/m
x = 0.40 m
m = 500g = 0.5kg
v=?

Plug in the values in (1):

$\frac{(850)(0.40^2)}{2} = \frac{0.5v^2}{2} \\ v = \sqrt{272} \\ v = 16.49 m/s\\ v = 16.5 m/s(approx)$

6 0

4 years ago

What can we say about the rock as it falls to Earth?

igor_vitrenko [27]

B) It falls at a constant rate of speed.

8 0

4 years ago

Read 2 more answers

A cardboard box sits on top of a concrete sidewalk where the coefficient of friction between the surfaces is 0.3. The mass of th

blagie [28]

Hope these r correct:
Normal Force≈ 68.5
Frictional Force≈ 20.5
Accel. ≈ 58.5

These are rounded

6 0