Which phase always fills its container?

Find the deceleration of<br> a cyclist who comes to<br> rest from 10m/s in 2<br> seconds.

I am Lyosha [343]

Answer:

-5 m/s^2

Explanation:

10/2=5 and is is a stop so it is negitive

5 0

3 years ago

A 1.80- kgkg monkey wrench is pivoted 0.250 mm from its center of mass and allowed to swing as a physical pendulum. The period f

madam [21]

Answer:

A. 1.125×10^-7 kgm^2

B. 6.64875 rad/s

Explanation:

The moment of inertia is defined as a quantity expressing a body's tendency to resist angular acceleration, which is the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation.

A. Moment of inertia = m1✖r1^2

=1.80 x (2.5x10^-4)^2

= 6.25x10^8 x 1.80

= 1.125 x 10^-7 kgm^2.

B. w is represented as Angular speed.

V is velocity, T is time in period.

Velocity= distance / time.

V= 2.5x10^-4 / 0.940

V= 2.6595 metre per seconds

w= v/r

w= 2.6595 / 0.400

w= 6.64875 rad/s.

6 0

3 years ago

A soccer player is running upfield at 10 m/s and comes to a stop in 3 seconds facing the same direction. What is his acceleratio

I am Lyosha [343]

His acceleration would be 3.34 m/s

5 0

4 years ago

(1 point) A projectile is fired from ground level with an initial speed of 600 m/sec and an angle of elevation of 30 degrees. Us

konstantin123 [22]

Answer:

(a) The range of the projectile is 31,813.18 m

(b) The maximum height of the projectile is 4,591.84 m

(c) The speed with which the projectile hits the ground is 670.82 m/s.

Explanation:

Given;

initial speed of the projectile, u = 600 m/s

angle of projection, θ = 30⁰

acceleration due to gravity, g = 9.8 m/s²

(a) The range of the projectile in meters;

$R = \frac{u^2sin \ 2\theta}{g} \\\\R = \frac{600^2 sin(2\times 30^0)}{9.8} \\\\R = \frac{600^2 sin (60^0)}{9.8} \\\\R = 31,813.18 \ m$

(b) The maximum height of the projectile in meters;

$H = \frac{u^2 sin^2\theta}{2g} \\\\H = \frac{600^2 (sin \ 30)^2}{2\times 9.8} \\\\H = \frac{600^2 (0.5)^2}{19.6} \\\\H = 4,591.84 \ m$

(c) The speed with which the projectile hits the ground is;

$v^2 = u^2 + 2gh\\\\v^2 = 600^2 + (2 \times 9.8)(4,591.84)\\\\v^2 = 360,000 + 90,000.064\\\\v = \sqrt{450,000.064} \\\\v = 670.82 \ m/s$

5 0

3 years ago

aliaa is skating down a ramp. the wheels on her skateboard have diameters of 60 \text{ mm}60 mm60, start text, space, m, m, end

GarryVolchara [31]

The total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is equal to 3770 millimeters.

<u>Given the following data:</u>

Diameter of skateboard = 60 mm.

Number of revolution = 20 revolutions.

Radius = diameter/2 = 60/2 = 30 mm.

<h3>What is distance?</h3>

Distance can be defined as the amount of ground covered (traveled) by a physical object over a specific period of time and speed, regardless of its direction, starting point or ending point.

For one revolution of the wheels, the distance traveled by Aliaa using her skateboard is given by:

Distance = 2πr

Distance = 2 × 3.142 × 30

Distance = 188.5 mm.

Therefore, the total distance traveled by Aliaa using her skateboard for 20 revolution of the wheels is given by:

Distance = 188.5 × 20

Distance = 3770 millimeters.

Read more on distance per revolutions here: brainly.com/question/10989073

#SPJ4

8 0

2 years ago