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mojhsa [17]
4 years ago
12

A roller coaster starts down hill at 15.3 m/s. Five and half seconds later, its speed is 42 m/s. Find the acceleration of the ro

ller coaster.?
Physics
1 answer:
TEA [102]4 years ago
8 0

Answer:

This is just simple math. Your answer would be 26.7 m/s

Explanation:

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2. If Peter is traveling .25 m/s on his bike, how long will it take him to reach
Semmy [17]

Answer:

48 seconds

Explanation:

Since S=d/t, plug in the known values and solve

0.25m/s=12m/t

0.25m/s*t=12m

t=12m/0.25m/s

t=48 seconds

7 0
3 years ago
Read 2 more answers
You research your favorite topic: earthquakes. You build a tall LEGO building, and you want to know which type of motion is most
tankabanditka [31]

Answer:

If the Lego building is shaken side to side, it will withstand up to 60 seconds because front to back will cause the top of the building to collapse.

7 0
3 years ago
Which conclusion about the atom can be drawn from Rutherford’s gold foil experiment?
Drupady [299]
D. Rutherford found that the atom consists of a small positively charged nucleus.
6 0
3 years ago
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A student uses a spring to launch a marble vertically in the air. The mass of the marble is
Fed [463]

Answer:

the maximum height reached by the marble is 11.84 m.

Explanation:

Given;

mass of the marble, m = 0.02 kg

extension of the string, x = 0.08 m

force applied to the string, F = 58 N

Apply the principle of conservation of energy;

elastic potential energy = gravitational potential energy

¹/₂fx = mgh

h = \frac{Fx}{2mg} \\\\h = \frac{58 \ \times \ 0.08}{2 \ \times \ 0.02 \ \times \ 9.8} \\\\h = 11.84 \ m

Therefore, the maximum height reached by the marble is 11.84 m.

5 0
3 years ago
A 9Ω resistance is cut into three equal parts and connected in parallel. Find the equivalent resistance of the combination.​
sammy [17]

Answer:

the ans i 1 ohm

Explanation:

if i cut a resistor of 9 ohm into 3 equal parts then each resistor will have a resistance of 3 ohm and if they are in parallel combination the net resistance will be R

so 1/R=1/R1+1/R2+1/R3

     1/R=1/3+1/3+1/3

      R=1

7 0
3 years ago
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