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adelina 88 [10]
3 years ago
9

4. A car has a steady speed of 8m/s.C. How far can a car travel in 8s​

Physics
1 answer:
madreJ [45]3 years ago
8 0

Answer: 64 miles

Explanation: it is 8 miles per second so you would multiply 8 x 8 because it is 8 seconds

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dsp73

Answer:

Paramedic

Explanation:

They will be on the move the whole time

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Chapter 21, Problem 43Partially correct answer. Your answer is partially correct. Try again.The 1400-turn coil in a dc motor has
miskamm [114]

Answer:

I = 3.028 A

Explanation:

given,

Number of turns in the coil = N = 1400

Area of DC motor per turn = 1.1 × 10⁻² m²

Maximum torque in motor = 8.4 N.m

Magnetic field in the coil = 0.18 T

Current in the coil = ?

using formula for toque in the magnetic field

   τ = N A B I

   8.4 = 1400 x 1.1 × 10⁻²  x 0.18 x I

   I = \dfrac{8.4}{2.774}

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Current in the coil will be equal to I = 3.028 A

7 0
3 years ago
If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t − 16t2. (a) What
romanna [79]

Answer:

s = 400 ft

The maximum height reached by the ball is 400 ft

Explanation:

Given;

Initial vertical velocity v = 160 ft/s

Height function s = 160t - 16t^2 ......1

The maximum height is reached when the change in height with respect to time is zero.

ds/dt = 0

Differentiating the height function;

ds/dt = 160 - 32t = 0

160 - 32t = 0

Solving for t;

32t = 160

t = 160/32

t = 5 seconds

Therefore, the maximum height is at t = 5;

Substituting into equation 1 (the height function)

s = 160(5) - 16(5^2)

s = 800 - 400

s = 400 ft

The maximum height reached by the ball is 400 ft

4 0
3 years ago
What is the action force of a bug hitting a windshield?
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Explanation:

Newtons 3rd law

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3 years ago
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Answer:

b and d :)

Explanation:

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3 years ago
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