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3 years ago

NO LINKS!!!!!! Help its urgent, PLEASE HELP!!!!!!!!!!!!!!!!

Physics

1 answer:

Likurg_2 [28]3 years ago

7 0

Answer:

I think ur answer would be B

Explanation:

srry if wrong

hope this helps

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How do you calculate centripetal acceleration?

Delvig [45]

A particle has centripetal acceleration whenever it's a making a turn of radius R. If the particle is moving at a constant tangential speed v throughout the turn, then the magnitude of centripetal acceleration is

v²/R

If the particle is following a uniformly circular path, then it moves in a circle of radius R and travels a distance equal to its circumference, 2πR. Let T be the time it takes to complete one such loop. Then the entire circle is traversed with speed v = 2πR/T, so that the centripetal acceleration is also given by

v²/R = (2πR/T)²/R = 4π²R/T²

8 0

3 years ago

A point charge Q moves on the x-axis in the positive direction with a speed of 370 m/s. A point P is on the y-axis at y = +80 mm

mixas84 [53]

Answer:

+58

Explanation:

Cause I intelligent

3 0

3 years ago

Ram travel 50metre on a straight road in 30second . hari covers the same distance on the same road in 45s . who has done more wo

Likurg_2 [28]

Answer:

The ram has done more work because the rate at which the ram work is 1.6m/s and Hari is 1.1m/s

4 0

3 years ago

A 30 kg child is in an elevator accelerating down at a rate of -5 m/s2.

Annette [7]

Answer:

The force is - 150 N

Explanation:

F = 30 • - 5 = - 150

6 0

3 years ago

4 Points

lbvjy [14]

Answer:

Impulse = 322.5[kg*m/s], the answer is D

Explanation:

This method it is based on the principle of momentum and the amount of movement; and used to solve problems involving strength, mass, speed and time.

If units of the SI are used, the magnitude of the impulse of a force is expressed in N * s. however, when remembering the definition of the newton.

$N*S=(kg*m/s^{2} )*s = kg*m/s$

Now replacing the values on the following equation that express the definition of impulse

$Impulse = Force * Time\\\\Impulse = 215 * 1.5 = 322.5 [kg*m/s]$

4 0

3 years ago

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