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3 years ago

High energy waves have what

Physics

2 answers:

Hitman42 [59]3 years ago

5 0

Answer:

It means that the frequency will be a lot higher with a shorter wave.

GarryVolchara [31]3 years ago

3 0

High energy waves have Gamma rays

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If you divide a speed in miles per minute by 60, you get the same speed

Mariulka [41]

Yes so x multiply by the hour but u add 59 for each hour to get the exath speed per minute

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3 years ago

A pole-vaulter is nearly motionless as he clears the bar, set 4.2 m above the ground. He then falls onto a thick pad. The top of

Inessa05 [86]

initial height of the pole vaulter = 4.2 m

height of the pole vaulter just before it touch the pad = 80 cm

so the total displacement of pole vaulter just before he will touch the pad = 4.2 - 0.80 = 3.4 m

now by kinematics

$v_f^2 - v_i^2 = 2a d$

$v_f^2 - 0^2 - 2* 9.8*3.4$

$v_f^2 = 66.64$

$v_f = 8.16 m/s$

now after this he will come to rest after compressing the pad by 50 cm

so again we can use kinematics to find its acceleration

$v_f^2 - v_i^2 = 2 a d$

$0 - 8.16^2 = 2*a*0.50$

$a = -66.64 m/s^2$

so here its acceleration will be - 66.64 m/s^2

4 0

3 years ago

A 12-kg turtle rests on the bed of a zookeeper's truck, which is traveling down a country road at 62.0 mi/h. The zookeeper spots

Svetlanka [38]

Answer:

0.25683

Explanation:

t = Time taken by the truck to stop = 11 seconds

u = Initial velocity of the truck = 62 mi/h

v = Final velocity of the truck = 0

a = Acceleration of the truck

g = Acceleration due to gravity = 9.81 m/s²

Equation of motion

$v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{0-\frac{62}{2.237}}{11}\\\Rightarrow a=-2.5196\ m/s^2$

$\mu mg=ma\\\Rightarrow \mu=\frac{ma}{mg}\\\Rightarrow \mu=\frac{a}{g}\\\Rightarrow \mu=\frac{2.5196}{9.81}\\\Rightarrow \mu=0.25683$

The minimum coefficient of static friction between the turtle and the truck bed surface needed to prevent the turtle from sliding is 0.25683

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3 years ago

Which three factors are used to calculate gravitational potential energy?

Elis [28]

Explanation:

PEgrav = m *• g • h

In the above equation, m represents the mass of the object, h represents the height of the object and g represents the gravitational field strength (9.8 N/kg on Earth) - sometimes referred to as the acceleration of gravity.

www.physicsclassroom.com › energy

Potential Energy - The

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4 years ago

An athlete is working out in the weight room. He steadily holds 50 kilograms above his head for 10 seconds. Which statement is t

ludmilkaskok [199]

Answer: the true statement form the given statements is “the athletes is not doing any work because he does not move weight”

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3 years ago