What do I say when commenting on my result?

A 150 g pinball rolls towards a springloaded launching rod with a velocity of 2.0 m/s

sladkih [1.3K]

I believe the answer is option C 1.8 kg•m/s to the east

6 0

3 years ago

The London Eye, which is a giant Ferris wheel, has a diameter of 135 m. It revolves at a constant rate and takes 30 minutes to c

Maurinko [17]

Answer:

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

Explanation:

Diameter = 135 m

Radius, r = 0.5 x 135 = 67.5 m

It revolves at a constant rate and takes 30 minutes

Period, T = 30 minutes= 1800 s

$\texttt{Angular velocity, }\omega =\frac{2\pi }{T}=\frac{2\pi }{1800}=3.49\times 10^{-3}rad/s$

Linear velocity, v = radius x angular velocity

v = 67.5 x 3.98 x 10⁻³ = 0.2355 m/s

Linear velocity of a rider in a capsule that is located at the perimeter of the wheel = 0.2355 m/s

6 0

3 years ago

2. What is meant by the statement that the MA of a simple machine is 3<br>

Blababa [14]

Explanation:

MA of a machine is its mechanical advantage.

Mechanical advantage is the ability of a machine to multiply force so as to get a work done.

This is done by minimizing effort and maximizing the load or output.
A MA of a simple machine with a value of 3 suggests that such a machine will multiply input force by a factor of 3.
Therefore, such a machine will amplify the force input into the system.

4 0

3 years ago

Human power can be used to generate electricity by connecting a bicycle to a generator. The efficiency of the bicycle and genera

NemiM [27]

Answer:

132 W

Explanation:

Efficiency = power out of generator / power into generator

0.6 = P / 220 W

P = 132 W

3 0

3 years ago

a car traveling at 28.4 m/s undergoes a constant deceleration of 1.92 m/s2 when the breaks are applied. How many revolutions doe

kramer

Complete Question

a car traveling at 28.4 m/s undergoes a constant deceleration of 1.92 m/s2 when the breaks are applied. How many revolutions does each tire make before the car comes to a stop? Assume that the car does not skid and that each tire has a radius of 0.307 m. Answer in units of rev.

Answer:

The value is $N = 109 \ rev$