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likoan [24]
3 years ago
14

A hockey puck of mass m1=165 g slides from left to right with an initial velocity of 15.5 m/s. It collides head on with a second

puck of the same mass, m2=m1, moving in the opposite direction with velocity -21.5 m/s. They collide elastically head-on. After the collision, the velocity of m2 is: (in m/s)
Physics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

it may be -6 m/s

Explanation:

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A block of mass 500 g is attached to a horizontal spring, whose force constant is 25.0 N/m . The block is undergoing simple harm
lara [203]

Answer:

t = 0.325343 sec

Explanation:

given

mass of block(m) = 500 g

force constant  (k) = 25.0 N/m

we know simple harmonic motion equation as

y = A sin (ωt + Φ)

 where  Φ = sin^{-1} (-4/6)

so we get

Φ = - 0.729727656 rad  

and we know

\omega  = \sqrt{\frac{k}{m}

y = A sin (t\sqrt\frac{k}{m} - 0.729727656)

now substitute the values we get as

y = 0.06 m

0.06 = 0.06 sin (t\sqrt(\frac{25}{0.5}) - 0.729727656)

(t\frac{25}{0.5} - 0.729727656) = \frac{\pi}{2}

on solving these equation we get

t = 0.325343 sec

7 0
3 years ago
Wind blows from what pressure to what pressure
viva [34]
This is called the coriolis effect. So in the northern hemisphere, winds blow clockwise around an area of high pressure and counter-clockwise around low pressure. Not only do differences in air pressure help determine wind speed and direction, they help forecast precipitation and clear weather.
5 0
3 years ago
How can a driver steer a car traveling at constant speed so that the magnitude of the acceleration remains constant. (Assume tha
ratelena [41]

<h2>Circular path i.e 1</h2>

Explanation:

If the driver steer into circular path , the acceleration of car will be

acceleration = velocity²/radius  of circle

Because the velocity and radius of circle are both constant at all points . Thus the acceleration will also remain constant .

In case 3 and 4 , the radius of path changes . Because velocity is constant . Therefore the acceleration will not remain constant

3 0
3 years ago
Samaira needs to rent some tents for an outdoor family reunion in July what is the best type of tent for Samaira to rent so that
Elena L [17]

Answer:

It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, here is the answer. Samaira needs to rent some tents for an outdoor family reunion in July, so the type of tent for Samaira to rent so that her family members are protected from the heat of the sun is SMOOTH and WHITE TENT. Hope this answer helps.

6 0
3 years ago
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Select the correct locations on the image.
RideAnS [48]

Answer:

Hurricanes hit almost everywhere but I will say the gulf of for your fourth answer.

Explanation:

you might be right on the north pacific but here is another option.

7 0
3 years ago
Read 2 more answers
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