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Wittaler [7]
2 years ago
6

planet a has twice the mass of planet b. from this info what can we conclude about the acceleration due to gravity at the surfac

e of plant a
Physics
1 answer:
tangare [24]2 years ago
6 0

Answer: acceleration due to gravity of planet a would be twice that of planet b. Given that the radius are thesame.

Explanation:

Acceleration due to gravity is as a result of the gravitational force of attraction of a planet to its centre.

g = GM/r^2

Where;

g = acceleration due to gravity

G = gravitational constant

M = mass of planet

r = radius of planet

Given that the two planet have the same radius, if the mass of planet a is twice the mass of planet b the the acceleration due to gravity of planet a would be twice that of planet b, because acceleration due to gravity is directly proportional to the mass of the planet.

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player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. What is the hor
seropon [69]

Answer

22.5 m/s

Explanation

We shall use the trigonometric ratio cosine to find the horizontal component.

cos = adjacent/hypotenuse

Adjacent is the horizontal and hypotenuse is the fly speed.

cos 30° = horizontal / 26

horizontal velocity = 26 × cos 30°

                                = 26 × 0.866

                                = 22.5166

                                 = 22.5 m/s

7 0
2 years ago
Read 2 more answers
Which type of interference occurs when two waves exactly cancel out? NEED AN ANSWER ASAP
Nostrana [21]
If the two waves combine to produce ANY wave that smaller
than either of the originals, that's destructive interference.
4 0
2 years ago
A stone is thrown towards a wall with an initial velocity of v0=19m/s and an angle = 71 with the horizontal, as illustrated in t
HACTEHA [7]

Answer:

(a) 2.85 m

(b) 16.5 m

(c) 21.7 m

(d) 22.7 m

Explanation:

Given:

v₀ₓ = 19 cos 71° m/s

v₀ᵧ = 19 sin 71° m/s

aₓ = 0 m/s²

aᵧ = -9.8 m/s²

(a) Find Δy when t = 3.5 s.

Δy = v₀ᵧ t + ½ aᵧ t²

Δy = (19 sin 71° m/s) (3.5 s) + ½ (-9.8 m/s²) (3.5 s)²

Δy = 2.85 m

(b) Find Δy when vᵧ = 0 m/s.

vᵧ² = v₀ᵧ² + 2 aᵧ Δy

(0 m/s)² = (19 sin 71° m/s)² + 2 (-9.8 m/s²) Δy

Δy = 16.5 m

(c) Find Δx when t = 3.5 s.

Δx = v₀ₓ t + ½ aₓ t²

Δx = (19 cos 71° m/s) (3.5 s) + ½ (0 m/s²) (3.5 s)²

Δx = 21.7 m

(d) Find Δx when Δy = 0 m.

First, find t when Δy = 0 m.

Δy = v₀ᵧ t + ½ aᵧ t²

(0 m) = (19 sin 71° m/s) t + ½ (-9.8 m/s²) t²

0 = t (18.0 − 4.9 t)

t = 3.67

Next, find Δx when t = 3.67 s.

Δx = v₀ₓ t + ½ aₓ t²

Δx = (19 cos 71° m/s) (3.67 s) + ½ (0 m/s²) (3.67 s)²

Δx = 22.7 m

7 0
3 years ago
which statement below is FALSE? A Gravity acts on any object with mass. B The closer objects are, the stronger the gravitational
GenaCL600 [577]

Answer:

Explanation:

5 0
3 years ago
Si una sustancia de 52 gramos de masa ,tiene un volumen de 2.5 cm,cual es la dendidad de la masa ?
yaroslaw [1]

Answer:

20.8g/cm³

Explanation:

Esta es la forma en inglés de la pregunta.

"Si una sustancia de 52 gramos de masa tiene un volumen de 2.5 cm³, ¿cuál es la densidad de la masa?"

La densidad se define como la relación entre la masa de una sustancia y su unidad de volumen.

Densidad = Masa / Volumen

Masa dada = 52 gramos

Volumen = 2.5cm³

Densidad = 52 / 2.5

Densidad de la sustancia = 20.8g / cm³

3 0
3 years ago
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