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motikmotik
3 years ago
5

When is the ideal time to take a resting heart rate? O A. After exercise OB. After a meal OC. Hirst thing in the morning D. Befo

re going to bed​
Physics
1 answer:
stira [4]3 years ago
7 0

Answer:

D

Explanation:

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it takes 560s for a runner to complete one circular lap, moving at a speed of 6.00 m/s. what is the radius of a track?
Lostsunrise [7]

Answer:

534.8 meters

Explanation:

Use T=(2*pi*r)/v

560=(2*pi*r)/6

3360=2*pi*r

1680=pi*r

534.8 meters=radius

4 0
3 years ago
When Woods hits a 0.04593 kg golf ball, the golf ball is usually traveling around 281 kilometers per hour. What average force do
Semenov [28]

Answer:

128.9 N

Explanation:

The force exerted on the golf ball is equal to the rate of change of momentum of the ball, so we can write:

F=\frac{\Delta p}{\Delta t}

where

F is the force

\Delta p is the change in momentum

\Delta t=0.030 s is the time interval

The change in momentum can be written as

\Delta p = m(v-u)

where

m = 0.04593 kg is the mass of the ball

u = 0 is the initial velocity of the ball

v=281 km/h =78.1 m/s is the final velocity of the ball

Substituting into the original equation, we find the force exerted on the golf ball:

F=\frac{m(v-u)}{\Delta t}=\frac{(0.04593)(78.1-0)}{0.030}=128.9 N

7 0
3 years ago
Which refers to an object’s resistance to any change in its motion. pleas help
pantera1 [17]
Inertia- a tendency to do nothing or to remain unchanged
8 0
3 years ago
Read 2 more answers
Can life be found/ sustain on Mars or other planets? What conditions are required to support life on another planet?
Mariana [72]
No. Oxygen( an atmosphere to contain the oxygen),water ,sunlight(energy)
7 0
3 years ago
What is a plasma?A.A superheated liquidB.A solid in which the particles vibrate very quicklyC.A gas in which the atoms have star
Mandarinka [93]

plasma is a superheated liquid

So, a would-be the correct option.

5 0
1 year ago
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