3 years ago

A cardio kickboxing class challenges 3 things. List them.

1 answer:

6 0

Answer:

In a cardio kickboxing class, you will learn proper form for the famous jab, hooks,crosses, uppercuts, back kicks, front kicks.

Explanation:

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(3) A Ninja motorcycle is moving down I95 at 160 miles per hour (72 m/s) and a cop uses a radar gun to measure the speed. Using

Virty [35]

Answer:

it does use it at doppler

Explanation:

My dad told me the hes a cop so yw

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3 years ago

Which of the following statements best describes the definition of<br> distance?

ch4aika [34]

Explanation:

The distance covered by a body is equal to the sum of total path covered. It is equal to the total path traveled by an object during its entire journey.

This quantity is always positive. It can't be 0 or a negative number.
It is defined as a scalar quantity.
Mathematically, it can be calculated as follows :

distance = speed × time

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3 years ago

A device is rated at 1.3kW when connected to a 120 V source. The equivalent resistance of this device in ohm is:

alexdok [17]

Answer:

correct me if im wrong

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3 years ago

If a 15 N box is lifted a distance of 3 m, how much work is done?

Naily [24]

Answer:

W=45J

Explanation:

W=Fd

W=15(3)=45

W=45J

7 0

3 years ago

Read 2 more answers

a 3.5 kg mass has an initial velocity of 4.0 m/s. How much force is required to increase the velocity of the mass to 8.0 m/s in

Nadya [2.5K]

Answer:

<em>4.67 N of force are required</em>

Explanation:

The second Newton's law states the net force exerted on a body of mass m that has an acceleration a, is given by:

F=m.a

On the other hand, the kinematics equations relate the acceleration with the change of speed over time, expressed as:

$\displaystyle a=\frac{v_f-v_o}{t}$

We are given the initial speed of vo=4 m/s on a mass of m=3.5 Kg, the final speed of vf=8 m/s which took t=3 seconds.

The acceleration is:

$\displaystyle a=\frac{8-4}{3}=1.33$

$a=1.33\ m/s^2$

Thus, the force is:

$F=3.5\ Kg\cdot 1.33\ m/s^2$

$F=4.67\ N$

4.67 N of force are required

6 0

3 years ago