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3 years ago

Car moves 5km East,3km south,2km West, 1km north find displacement(please show me the way)

Physics

2 answers:

ddd [48]3 years ago

4 0

Answer:

3.605551275463989

Explanation:

solve using Pythagorean theorem

Helen [10]3 years ago

3 0

Answer:

heyy babe

want to have fun?

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Compared to energy-flow in ecosystems, the flow of matter ________.

disa [49]

Compared to energy-flow in ecosystems, the flow of matter <span>reflects conservation and recycling.
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3 years ago

A 1.5V battery is connected to a small light bulb with a resistance of 3.5 what is the current in the bulb?

notka56 [123]

Technically, we don't have the information needed to calculate the current,
because you haven't mentioned the units of the 3.5 .

Since the 3.5 is a resistance, we strongly suspect ... and we'll therefore
assume ... that the 3.5 has the units of ohms. Then . . .

Current = (voltage) / (resistance) = (1.5/3.5) = <em>3/7 of an Ampere</em>.

(429 mA, rounded)

5 0

3 years ago

The weight of spaceman Speff at the surface of planet X, solely due to its gravitational pull, is 389 N. If he moves to a distan

miv72 [106K]

Answer:

mass of the planet X = 5.6 × 10²³ kg.

Explanation:

According to Newtons law of universal gravitation,

F = GM₁M₂/r²

Where F = gravitational force, M₁ = mass of the speff, M₂ = mass of the planet X, G = gravitational constant r = distance between the speff and the planet X

making M₂ The subject of the equation above,

M₂ = Fr²/GM₁ .......................... equation 2

Where F = 24.31 N, r = 1.08×18⁴km ⇒( convert to m ) =1.08 × 10⁴ × 1000 m

r = 1.08 × 10⁷ m, G = 6.67 × 10 ⁻¹¹ Nm²/kg², M₁ = 75 kg

Substituting this values in equation 2,

M₂ = 24.13(1.08 × 10⁷ )²/75( 6.67 × 10 ⁻¹¹)

M₂ = 24.13 × 1.17 × 10¹⁴/500.25 × 10⁻¹¹

M₂ = (28.23 × 10¹⁴)/(500.25 × 10⁻¹¹)

M₂ = 0.056 × 10²⁵

M₂ = 5.6 × 10²³ kg.

Therefore mass of the planet X = 5.6 × 10²³ kg.

8 0

3 years ago

The record time for a Tour de France cyclist to ascend the 1100-mm-high Alpe d'Huez is 37.5 minmin. The rider and his bike had a

katen-ka-za [31]

Answer:

1945.6 W

Explanation:

We are given that

Height,h=1100 m

Time,t=37.5 min= $37.5\times 60=2250 s$

1 min=60 s

Mass,m=65 kg

Power,P=700 W

We have to find the his total metabolic power.

Power,= $P'=\frac{W}{t}=\frac{mgh}{t}=\frac{65\times 9.8\times 1100}{2250}=311.4 W$

Where $g=9.8m/s^2$

Efficiency =25%

Therefore,Power,P'= $\frac{311.4}{0.25}=1245.6 W$

Total metabolic power=P+P'=700+1245.6=1945.6 W

7 0

3 years ago

In which scenario is the greatest amount of work done on a wagon?

ale4655 [162]

Answer:

The first scenario!

Explanation:

W=F*d

a) 55*8= 440J

b) 60*6= 360J

c) 50*5= 250J

d) 40*10= 400J

5 0

3 years ago

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Car moves 5km East,3km south,2km West, 1km north find displacement(please show me the way)​

Car moves 5km East,3km south,2km West, 1km north find displacement(please show me the way)