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2 years ago

When a scientific calculator shows the quantity below, what does it mean? 1.5E8

Physics

1 answer:

jenyasd209 [6]2 years ago

6 0

1.5 with 8 exponent of 10.
1.5 x 100000000
150000000

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The number of waves that pass a given point in a second is___.

Kisachek [45]

Answer:

Frequency

Explanation:

The frequency ( ) of a wave is the number of waves passing a point in a certain time.

5 0

3 years ago

Find the initial velocity

Ivenika [448]

a = dv/t = (330-x)/1.5 =50

x= 330-75 = 255 m/s

Intial velocity 255 m/s

4 0

3 years ago

Se debe usar una rampa de 5 m para elevar muebles que pesen 490 N hasta una plataforma a una altura de 2 m. Su propuesta de que

AfilCa [17]

Answer:

F = 180 N

Explanation:

To find the required force you first calculate the angle of the ramp, by using the following relation:

$sin\theta=\frac{2m}{5m}=0.4\\\\\theta=sin^{-1}(0.4)=23.57\°$

Next, you use the Newton second law to know what is the x component (in a rotated coordinate system) of the gravitational force:

$F_x=mgsin\theta$

the required force must be, at least, the last force Fx. You know that the weight of the object is 490N = mg. Hence, you have:

$F=F_x=(450N)sin(23.57\°)=180N$

the required force is 180N

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TRANSLATION:

Para encontrar la fuerza requerida, primero calcule el ángulo de la rampa, utilizando la siguiente relación:

Luego, usa la segunda ley de Newton para saber cuál es el componente x (en un sistema de coordenadas girado) de la fuerza gravitacional:

la fuerza requerida debe ser, al menos, la última fuerza Fx. Sabes que el peso del objeto es 490N = mg. Por lo tanto, tienes:

3 0

3 years ago

A planet moves forward because of momentum <br><br> True or False??

lorasvet [3.4K]

Answer:

true

Explanation:

8 0

3 years ago

The force of gravity pulls down on your school with a total force of 400,000 newtons. The force of gravity pulling down on your

gizmo_the_mogwai [7]

Answer: a Had twice as much mass

Explanation:

The data that we have is:

"The force of gravity pulls down on your school with a total force of 400,000 newtons. "

First, remember that, by the second Newton's law that:

F = a*m

F = force

a = acceleration

m = mass

In the case of the gravitational force, the gravitational acceleration is a constant: a = 9.8m/s^2

Then, if we want to have twice as much force the only thing that we can change in the equation is the mass:

Then if the initial force is written as:

F = a*m

twice as much that force is written as:

2*F = a*x

x is a variable that represents the new mass.

We know that F = a*m

2*F = 2*a*m

2*a*m = a*x

2*m = x

Then, if we want to have twice as much force, we should have twice as much mass.

7 0

3 years ago