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valentinak56 [21]
3 years ago
13

This object was observed in 1997. The object in the picture is ____ a/an .

Physics
2 answers:
Stells [14]3 years ago
5 0

Answer: This is Comet Hale--Bopp

Explanation:

melisa1 [442]3 years ago
4 0

Answer: Hale-Bopp was an unusually bright comet that flew by Earth, reaching its closest approach to the planet in 1997.

Explanation:

Hale-Bopp is the answer

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While playing football, Chris runs 4.5 m at 20⁰ south of west. If an opponent was trying to tackle him how far west and south wo
rewona [7]

Answer:

South = 1.5m

West =4.2m

Explanation:

Kindly see attached a rough draft of the situation

Step one

Given data

From the sketch the direction of the player is along the resultant of the triangle, corresponding to the Hypotenuse

Step two:

Hence for an opponent to tackle him towards the south, he must be at

sin θ= opp/hyp

sin 20=x/4.5

x=sin 20*4.5

x=0.342*4.5

x= 1.5m

Also, for an opponent to tackle him towards the south, he must be at

cos θ= adj/hyp

cos 20=y/4.5

y=cos 20*4.5

y=0.93*4.5

y= 4.2m

5 0
3 years ago
What is the unit used for work?
bulgar [2K]
Joules is used for work. 
3 0
2 years ago
Three 15-Ω and two 25-Ω light bulbs and a 24 V battery are connected in a series circuit. What is the current that passes thro
serious [3.7K]

Answer:

I = 0.25 A

Explanation:

Given that,

Three 15 ohms and two 25 ohms light bulbs and a 24 V battery are connected in a series circuit.

In series combination, the equivalent resistance is given by :

R=R_1+R_2+R_3+....

So,

R=15+15+15+25+25\\\\=95\ \Omega

The current each resistor remains the same in series combination. It can be calculated using Ohm's law i.e.

V = IR

I=\dfrac{V}{R}\\\\I=\dfrac{24}{95}\\\\I=0.25\ A

So, the current of 0.25 A passes through each bulb.

5 0
3 years ago
Two vehicles of mass M and 2M are moving in the same direction on a highway. Both drivers apply their brakes at the same time an
JulsSmile [24]

Answer:

The mass is inversely proportional to the acceleration so the acceleration a1 is twice that acceleration a2

a_{1},a_{2}=\frac{a_{1}}{2}

Explanation:

The force of friction and the kinetic force make the law of mass in moving so

F=m*a

F=f_{m}+f_{k}

f_{k1}=u*m1*g

f_{k2}=u*2*m1*g

f_{m}=\frac{1}{2}*m1*v^2

The forces are the same however at the moment to determinate the acceleration

a_{1}=\frac{F}{m}

a_{1}=\frac{F}{2*m}

\frac{F}{m} are constant because they make the same motion however the difference of mass make the acceleration difference

3 0
2 years ago
Radius of Betelgeuse
MaRussiya [10]

820.9 million km thats your answer


7 0
3 years ago
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