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4 years ago

If I spacecraft seems to be Motionless in deep space is given some type of quick push what will happen

Physics

2 answers:

lapo4ka [179]4 years ago

5 0

It will stay in motion unless an outside force slows it down.

Olenka [21]4 years ago

3 0

Answer:

Will remain in motion until an external force is applied.

Explanation:

According to Newton's first law of motion, a body continues to be in state of rest or motion, until and unless an unbalanced, external force acts on it.

In deep space, there is no external force. If a motionless spacecraft uses thrusters to give a push, the spacecraft will continue to be in motion until an unbalance external force acts on it again to stop it or increase its speed or change direction.

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Will the velocity of a box change as it moves across the surface with no friction?Explain

nevsk [136]

The velocity will remain unchanged (Newton’s 1st Law) unless a force acts on it. If no friction force, then the velocity remains constant.

3 0

4 years ago

¿Qué significa que un automóvil viaje con una rapidez de 45[(Km.)⁄(Hr.)]?

netineya [11]

Responder:

Compruebe amablemente la explicación

Explicación:

¿Qué significa que un automóvil viaje con una rapidez de 45 [(Km.) ⁄ (Hr.)]?

Si se dice que un automóvil viaja a una velocidad de 45 km / h, entonces el automóvil cubre una distancia de 45 km en una hora. 45 km / h es una derivación de la velocidad de desplazamiento obtenida de la relación;

Velocidad = distancia / tiempo

Velocidad = 45 km / 1 h.

Distancia = velocidad × tiempo

Distancia = 45 km / h × 1 h

Distancia = 45 km

Por lo tanto, a esa velocidad, se cubrirá una distancia de 45 km por cada hora que se mueva.

4 0

3 years ago

Balance the equation: ___ SiO2 + ___ HF  ___ SiF4 + ___ H2O

olga_2 [115]

Let's start from the Fluorine (F), which has 4 atoms on the right side: this means we must put a factor 4 in front of HF to balance the number of atoms of Fluorine.
Nowe we have 4 atoms of hydrogen, H, on the left side. Since we have a $H_2$ on the right side (2 atoms), we must put a factor 2 in front of $H_2 O$ , to balance the number of atoms of hydrogen.
So now the atoms of oxygen are also balanced (2 on both sides), as well as the atoms of Silicon (Si), so the balanced reaction is

$Si O_2 + 4 HF \rightarrow SiF_4 + 2 H_2 O$

3 0

3 years ago

Suppose your friend mistakes a yardstick for a meter stick and measures the length of an intersection in your neighborhood. Is t

Vikki [24]

How do you find the uncertainty of a meter stick?

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5 0

3 years ago

A 2,100 kg car is lifted by a pulley. If the cable breaks at 4.50 m, what is the velocity of the car when it hits the ground? 88

sammy [17]

V^2-u^2=2as

v=final velocity=unkown
u=initial velocity=0 m/s, because freely falling
a=acceleration due to gravity=9.8 m/s^2
s=distance (here height) traveled=4.5m

therefore the final velocity,
v^2=2*9.8*4.5
v=<span>9.39m/s</span>

8 0

3 years ago