All categories

3 years ago

Determine the weight or mass of the object.

Physics

1 answer:

Lera25 [3.4K]3 years ago

6 0

Answer:

A: 9.99322kg

B: 6.86465N

C: 137.293N

D: 0.09993219kg

Explanation:

I just used a calculator, but one kg is 9.80665 Newtons for a reference point.

You might be interested in

The wavelengths of light emitted by an excited atom are determined by the:

Natalka [10]

Difference in energy between the exicted states and ground states

7 0

3 years ago

Read 2 more answers

Identify the vibrating media in three different types of musical instruments

Artist 52 [7]

Answer:

There are three basic categories of musical instruments: percussion, wind, and stringed instruments. Most musical instruments use resonance to amplify sound waves and make sounds louder. In a musical instrument, the whole instrument and the air inside it may vibrate when the head of the drum is struck.

3 0

2 years ago

An fm radio station broadcasts electromagnetic radiation at a frequency of 100.6 mhz. the wavelength of this radiation is ______

Advocard [28]

The wavelength would be 2.980044314115. Reduced it would be 2.980 or just 2.98.

5 0

3 years ago

Read 2 more answers

True or false Weight is constant every place in the universe.

ycow [4]

False. it's depend on g -constant.

6 0

3 years ago

Consider a uniform horizontal wooden board that acts as a pedestrian bridge. The bridge has a mass of 300 kg and a length of 10

gayaneshka [121]

Answer:

F = 2123.33N

Explanation:

In order to calculate the torque applied by the left support, you take into account that the system is at equilibrium. Then, the resultant of the implied torques are zero.

$\Sigma \tau=0$

Next, you calculate the resultant of the torques around the right support, by taking into account that the torques are generated by the center of mass of the wooden, the person and the left support. Furthermore, you take into account that torques in a clockwise direction are negative and in counterclockwise are positive.

Then, you obtain the following formula:

$-\tau_l+\tau_p+\tau_{cm}=0$ (1)

τl: torque produced by the left support

τp: torque produced by the person

τcm: torque produced by the center of mass of the wooden

The torque is given by:

$\tau=Fd$ (2)

F: force applied

d: distance to the pivot of the torque, in this case, distance to the right support.

You replace the equation (2) into the equation (1) and take into account that the force applied by the person and the center of mass of the wood are the their weight:

$-Fd_1+W_pd_2+W_{cm}d_3=0\\\\d_1=6.0m\\\\d_2=2.0m\\\\d_3=3.0m\\\\W_p=(200kg)(9.8m/s^2)=1960N\\\\W_{cm}=(300kg)(9.8m/s^2)=2940N$

Where d1, d2 and d3 are distance to the right support.

You solve the equation for F and replace the values of the other parameters:

$F=\frac{W_pd_2+W_d_3}{d_1}=\frac{(1960N)(2.0m)+(2940N)(3.0m)}{6.0m}\\\\F=2123.33N$

The force applied by the left support is 2123.33 N

8 0

3 years ago