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a_sh-v [17]
3 years ago
5

65. If Jill was traveling at 300 miles in 4 hours due South what was his velocity in miles per second,

Physics
1 answer:
iris [78.8K]3 years ago
5 0
Correct answer is A. Divide 300 by 75
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Why is a specimen smaller than 200 nm not visible with a light microscope?
kifflom [539]
Because the specimen is very small with a light microscope
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3 years ago
Hooke's law describes a certain light spring of unstretched length 31.8 cm. when one end is attached to the top of a doorframe a
lubasha [3.4K]

Answer:

Explanation:

extension in the spring = 40.4 - 31.8 = 8.6 cm = 8.6 x 10⁻² m .

kx = mg

k is spring constant , x is extension , m is mass

k x 8.6 x 10⁻² = 7.52 x 9.8

k = 856.93 N/m

=  857 x 10⁻³ KN /m

b ) Both side is pulled by force of 188 N .

Tension in spring = 188N

kx = T

856.93 x = 188

x = .219.38 m

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= 53.7 cm .

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Measurements of acceleration are given in units of ?
Lady_Fox [76]
Meters per second squared: \frac{m}{s^{2}}

If you think about it, acceleration is about how fast speed changes. Speed is measured in meters per second: \frac{m}{s}

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3 0
3 years ago
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A 70 kg student stands on top of a 5.0 m platform diving board . how much gravitational potential energy does the student have?
Marianna [84]

Answer:

a. P.E = 3430Joules.

b. Workdone = 3430Nm

Explanation:

<u>Given the following data;</u>

Mass = 70kg

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To find the potential energy;

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b. To find the workdone;

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But force = mass * acceleration

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Force = 686 Newton.

Workdone = 686 * 5

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3 years ago
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Vitek1552 [10]
Since 1m/s=3.6 km/h, we can conclude that 10.0m/s = 36 km/h
5 0
3 years ago
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