3 years ago

If your mass is 63.7 kg, and you are standing 7.5 m away from a boulder with

Physics

2 answers:

klasskru [66]3 years ago

8 0

6.67x10= 66.7 66.7-11=55.7

san4es73 [151]3 years ago

7 0

Answer:

B. 7.37 x 10-7N

mark me brainiest and follow me :)

You might be interested in

Which two properties of light relate to the amount of energy carried by the light? A. speed and amplitude

vivado [14]

C. color and wavelength

6 0

3 years ago

A particular person's eardrum is circular, with a diameter of 7.90 mm. How much sound energy (in J) is delivered to an eardrum i

antiseptic1488 [7]

Answer:

$4.90167\times 10^{-17}\ J$

Explanation:

I = Hearing intensity = $1\times 10^{-12}\ W/m^2$

A = Area = $\pi r^2$

d = Diameter = 7.9 mm

r = Radius = $\dfrac{d}{2}=\dfrac{7.9}{2}=3.95\ mm$

Power is given by

$P=IA\\\Rightarrow P=1\times 10^{-12}\times \pi \times (3.95\times 10^{-3})^2\\\Rightarrow P=4.90167\times 10^{-17}\ W$

t = Time the eardrum is exposed to sound = 1 second

Energy is given by

$E=Pt\\\Rightarrow E=4.90167\times 10^{-17}\times 1\\\Rightarrow E=4.90167\times 10^{-17}\ J$

The energy transferred to the eardrum is $4.90167\times 10^{-17}\ J$

3 0

3 years ago

Read 2 more answers

Pls help me with this question I want the answer ASAP quick

Sindrei [870]

Answer:

I don't know the answer

Explanation:

I just want the point sorry (\_/)

( - ×)

o o

3 0

3 years ago

The energy of atoms and molecules in an object due to their motion is_______ energy

QveST [7]

I think the answer is potential

7 0

3 years ago

How much would a spring scale with k = 120 N/m stretch, if it had a 3.75 J of work done<br> on it?

iren [92.7K]

Answer:

0.25m

Explanation:

Given parameters:

Spring constant , K = 120N/m

Work done = 3.75J

Unknown:

magnitude of extension = ?

Solution:

To solve this problem;

Work done = $\frac{1}{2}$ kx²

K is the spring constant

x is the extension

3.75 = $\frac{1}{2}$ x 120x²

3.75 = 60x²

x² = 0.06

x = √0.06 = 0.25m

3 0

3 years ago