All categories

2 years ago

Why is the moon's umbra much smaller during a solar eclipse?

Physics

1 answer:

Stolb23 [73]2 years ago

7 0

Answer:

the sun is larger than the moon so it creates a shadow

You might be interested in

While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 5.65 m/s. The stone subs

xxTIMURxx [149]

Answer:

1. 20.54m/s

2. 1.52s

Explanation:

QUESTION 1:

The speed the stone impact the ground is the final speed/velocity, which can be calculated using the formula:

v² = u² + 2as

Where;

v = final velocity (m/s)

u = initial velocity (m/s)

a = acceleration due to gravity (m/s²)

s = distance (m)

From the provided information, u = 5.65m/s, v = ?, s = 19.9m, a = 9.8m/s²

v² = 5.65² + 2 (9.8 × 19.9)

v² = 31.9225 + 2 (195.02)

v² = 31.9225 + 390.04

v² = 421.9625

v = √421.9625

v = 20.5417

v = 20.54m/s

QUESTION 2:

Using v = u + at

Where v = final velocity (m/s) = 20.54m/s

t = time (s)

u = initial velocity (m/s) = 5.65m/s

a = acceleration due to gravity (m/s²)

v = u + at

20.54 = 5.65 + 9.8t

20.54 - 5.65 = 9.8t

14.89 = 9.8t

t = 14.89/9.8

t = 1.519

t = 1.52s

3 0

3 years ago

Give 5 real life examples of a tension

Delvig [45]

1.car towing

2.pulling bucket of water

3.gym equipment 

4.crane machine

5.tug of war

6 0

2 years ago

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. Her friend, a hocke

3241004551 [841]

Answer:

The right shoe

Explanation:

Both shoes have the same speed.

5 0

3 years ago

INT Raindrops acquire an electric charge as they fall. Suppose a 2.0-mm-diameter drop has a charge of 12 pC; these are both very

horsena [70]

Answer:

W = 2.3 10² $F_{e}$

Explanation:

The force of the weight is

W = m g

let's use the concept of density

ρ= m / v

the volume of a sphere is

V = $\frac{4}{3}$ π r³

V = $\frac{4}{3}$ π (1.0 10⁻³)³

V = 4.1887 10⁻⁹ m³

the density of water ρ = 1000 kg / m³

m = ρ V

m = 1000 4.1887 10⁻⁹

m = 4.1887 10⁻⁶ kg

therefore the out of gravity is

W = 4.1887 10⁻⁶ 9.8

W = 41.05 10⁻⁶ N

now let's look for the electric force

F_e = q E

F_e = 12 10⁻¹² 15000

F_e = 1.8 10⁻⁷ N

the relationship between these two quantities is

$\frac{W}{F_e}$ = 41.05 10⁻⁶ / 1.8 10⁻⁷

\frac{W}{F_e} = 2,281 10²

W = 2.3 10² $F_{e}$

therefore the weight of the drop is much greater than the electric force

3 0

2 years ago

special metal hangers or stirrips called joist hangers are used when joist must be _____ the bottom of the grider or beam

djyliett [7]

Answer:

Special metal hangers or stirrups called joist hangers are used when joist must be flush with the bottom of the girder or beam.

Explanation:

A joist hanger also known as a beam hanger is a mechanical device which is used to fasten joists and rafters.
The rafters are the carried members to beams and headers are the carrying members.

Thus, special metal hangers or stirrups called joist hangers are used when joist must be flush with the bottom of the girder or beam.

Learn more about construction here:

brainly.com/question/14428327

#SPJ4

7 0

1 year ago