WILL MARK BRAINLIEST WORTH 50 POINTS

Physics

1 answer:

Margaret [11]3 years ago

8 0

Answer:

a) force = mass * acceleration

so,

F=87*9.8

=852.6 N (newtons)

b) in the real world, the force affecting the rste of fall is most likely Air Resistance!

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2. What effect does increasing the current have on a solenoid?

Ainat [17]

Answer:

It will produce a stronger magnetic field.

Explanation:

Ampere’s law states the magnetic field of a solenoid is directly proportional to the current supplied.

5 0

3 years ago

A man swings a bucket on a 120-cm rope with a tangential speed of 4.5 m/s. If the magnitude of the centripetal force is 25 N, wh

Paraphin [41]

Answer:

the buckets mass is 346g if im not mistaken

Explanation:

3 0

3 years ago

Do objects tend to stay moving because of a force called Interia

ahrayia [7]

The first law of Newton’s law state an object in motion will stay in motion and an object at rest will stay at rest unless acted upon with an outside force. Other know as the law of inertia so yes it does

6 0

3 years ago

A dog is running at 15 m/s and then slows down to 10 m/s. It takes him two seconds to do this. What is the dog's acceleration

OLga [1]

Explanation:

a = (Vf-Vi)/t

= (10m/s - 15m/s)/2s

a = -5 / 2 m/s^2

• so the dog diaccelerate at the rate of 5/2 m/s^2

hope it helps

6 0

3 years ago

A Dodge Stealth is driving at 70 mph on a highway. It passes a BMW going the same direction. The BMW is moving 7 mph backward re

Tasya [4]

A Dodge Stealth is driving at 70 mph on a highway. It passes a BMW going the same direction. The BMW is moving 7 mph backward relative the Dodge. 63 mph is the velocity of the BMW

Answer: Option A

<u>Explanation:</u>

Given is the speed of the dodge stealth as 70 mph passing by the BMW moving with 7 mph relative to Dodge. Thereby, to calculate the velocity of BMW, relative velocity concept has to be employed.

As we know that the relative velocity tells us about relative velocity of mobile reference system as the difference or sum of the initial reference system.

Therefore,

velocity of the BMW = $v_{b}$