PLEASE HURRY ITS FOR A QUIZA motorcycle and rider, having a total mass of 875 kg, are moving with a velocity of 15 m/s due east. What is the total momentum of the rider and cycle?

A. 58 kg.m/s east

B. 60 kg.m/s east

C. 13.3 kg.m/s east

D. 13,125 kg.m/s east

Answers

Answer 1

Answer: I think it's D because momentum= mass times velocity

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While John is traveling along an interstate highway, he notices a 194-mile marker as he passes through town. Later John passes another mile marker, 104. (a) What is the distance between town and John's current location? (b) What is John's current position?

Answers

Answer:

a) 90 miles is the distance between town and John's current location.

b) John's current position is the 104 mile marker.

Explanation:

See in the picture.

True or False, a sonographer can adjust the duration of an acoustic pulse since it depends upon the pulse's propagation speed.

Answers

Answer: True

Explanation: A sonographer can adjust the duration of an acoustic pulse because it depends on the pulse's propagation speed.

Which of these are considered an oxidizing mutagenic agent? x–rays benzopyrene gamma rays

Answers

X - rays are considered an oxidizing mutagenic agent. X-rays are high energy electrons that can cause damage when exposed under extreme conditions. The best technology that can block it is t using a lightweight type of metal foam. It can take in high energy collisions which also exhibits high forces. it does not only block x-rays but also, neutron radiation and gamma rays.

A wheelbarrow is experiencing two forces. One is pushing 5 N to the east and the other 5 N in the exact opposite direction. What must be true of the wheelbarrow's motion?

Answers

Answer:

its acceleration must be 0.

Explanation:

According the second Newton's law, the net force applied in a object is equal to the mass of the object multiplied by its acceleration:

$F_(net) =m.a$

In this case, the net force is

$F_(net)=5N-5N=0$

What makes sense since both forces have the same value and opposite directions.

Since the mass of the object can't be zero, the acceleration is the one that must be 0 in order fulfill the equation of the second newton's law.

Another option is that, since both forces are opposite, the wheelbarrow could be at rest. Though this is correct, this is not always true.

In conclusion, the only statement that always is true about the wheelbarrow's motion is that its acceleration must be 0.

Assuming no other forces are acting on the wheelbarrow, it must be stationary.

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Answers

Answer:

1.86 $m/s^(2)$

Explanation:

Acceleration = $(Force)/(mass)$

Force = 11N

Mass = 5.9 kg

∴ Acceleration = $(11)/(5.9)$

= 1.86 $m/s^(2)$

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