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Darina [25.2K]
2 years ago
8

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)

Physics
1 answer:
Soloha48 [4]2 years ago
8 0

Answer:

Newton's second law: F=ma.

Force = mass x acceleration

This basically means, that the more massive something is, and the faster it is going, the more force the object will have.

So, the factors that can be used to find acceleration are:

F=ma

a=F/m

So, we see that the correct answer is A, mass and force.

Let me know if this helps!

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Which of these would be the best definition of energy?
makvit [3.9K]

Ability to do work .

3 0
3 years ago
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An ambulance is driving towards the hospital at a velocity 108 km/h and emitting a steady 798-Hz sound from its siren. The sound
slava [35]

To solve this problem we will apply the concepts related to the Doppler effect. The Doppler effect is a physical phenomenon where an apparent change in wave frequency is presented by a sound source with respect to its observer when that same source is in motion. Mathematically it can be described as

f_d= f_s \frac{(v+v_d)}{(v-v_s)}

The meaning of each of these variables is,

v_d=Velocity of detector

f_s=Frequency of wave emitted by source

v_s=Velocity of source

v=Velocity of sound wave

f_d=Frequency received by detector

Replacing we have that,

f_d = 798(\frac{(343+30)}{(343-30)})

f_d=950 Hz

Therefore the correct option is e. 950Hz

5 0
2 years ago
The melting of a glacier is an example of the interactions among which of Earth’s spheres?
Anuta_ua [19.1K]
Atmosphere, geosphere, cryosphere would be the correct answer I think
4 0
3 years ago
Reto: Aníbal desea construir una carpa de base hexagonal de 1,40 m de altura. El vértice de la base es de 0,80m y la longitud de
Rudiy27

Answer:

1.- para cubrir la superficie lateral 4.32 metros²

2.- Area de la base  2.15 metros²

3.- Volumen 1 m³

4.- Area total 6.47 metros²

Explanation:

El área lateral sera calcular el area de seis triangulos iguales cuya base es

0.80 de base x 6 lados = 4.80 metros perimetro de la base

4.80 perimetro de base x 1.80 arista lateral / 2 = 4.32m2

Area de la base:

Perímetro x Apotema / 2

Siendo la Apotema la altura de los triangulos que componen un hexagono calculada utilizando el teorema de pitágoras:

\sqrt{0.8^2 + (0.8/2)^2} = Apotema

Apotema = 0.894427191

Area: 4.80 x 0.894427191 / 2 = 2.146625258

sumando el area de la base mas el area lateral se obtiene el area total

2.15 + 4.32 = 6.47 metros

Volumen de la pirámide:

Area de la Base x Altura / 3

2.15 x 1.40 / 3 = 1.00333 m3

3 0
3 years ago
A vertical cylinder with a heavy piston contains air at 300 K. The initial pressure is 2.0 x 105 Pa and the initial volume is 0.
aleksklad [387]

Find answers and explanations in the attachments

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