Other Physics Answers

The slope of the stress-strain curve in the elastic deformation region is   ______

Question 6 options:

a) 

Plastic modulus.

b) 

No option is correct.

c) 

Elastic modulus.

d) 

None of the mentioned.

e) 

Poisson's ratio.

1. A single force F(x) = −8.0x (in newtons) acts on a 3.0-kg body. When x = 6.75 m, the speed of the body is 4.0 m/s. What is its speed at x = 2.5 m?
2. A T-shirt cannon launches a shirt at 8.00 m/s from a platform height of 5.00 m from ground level. How fast will the shirt be traveling if it is caught by someone whose hands are (a) 2.00 m from ground level? (b) 4.00 m from ground level? Neglect air drag.

Given the intensity of an earthquake wave traveling through the Earth and detected 200 km from the source is 2 MW/m^2. What is the intensity of that wave if detected 300 km from the source?

Given the function:y(x,t)=A1cosk1(x+vt)-A2 sink2(x-vt). Determine whether this a solution to the wave equation

Given the intensity of an earthquake wave traveling through the Earth and detected 200 km from the source is 2 MW/m^2. What is the intensity of that wave if detected 300 km from the source?

A transverse sinusoidal wave is generated at one end of a long horizontal string by a bar that moves the end up and down through a distance of 2.6 cm. The motion is repeated regularly 150 times per second. a) If the distance between adjacent wave troughs is 16.0 cm, find the amplitude, frequency, speed and wavelength of the wave.

A 25.0-kg child in Red Deer pumps herself on a swing when she kicks upward on the downswing, thus changing the distance from the pivot point to her centre of gravity from 2.40 m to 2.28 m.

1.The resonant frequency of her swing before the kick is: ___ Hz. (Give your answer with the correct number of sig digs and do no include units in your answer).

2.The resonant frequency of her swing after the kick is: ___ Hz. (Give your answer with the correct number of sig digs and do no include units in your answer).

1.The magnitude of the restoring force that acts on a 1.0-kg pendulum when it is displaced 2.0° from equilibrium is ___ N. (Give your answer with the correct number of significant digits and do not include units in your answer)

2.The magnitude of the restoring force that acts on a 1.0-kg pendulum when it is displaced 10.0° from equilibrium is ___ N. (Give your answer with the correct number of significant digits and do not include units in your answer)

3.On earth the period of a 1.50-m pendulum is ___s. (Give your answer with the correct number of significant digits and do not include units in your answer)

4.On the hypothetical planet Xeon, a pendulum with a length of 95.0 cm swings with a frequency of 1.50 Hz. The acceleration due to gravity on Xeon is ___ m/s². (Give your answer with the correct number of significant digits and do not include units in your answer)

A 250-g object hangs from a spring that has a spring constant of 48.0 N/m and oscillates with an amplitude of 5.42 cm.

1.The magnitude of the objects acceleration when the displacement is 4.27 cm [down] is ___m/s². (Give your answer with the correct number of sig digs and do not include units).

2.Given that the object has an amplitude of 5.42cm, the maximum speed that the object is ___m/s. (Give your answer with the correct number of sig digs and do not include units).

3.A 78.5-kg man is about to complete a bungee jump. If the bungee cord has a spring constant of 150 N/m, the period of oscillation that he will experience is ___s. (Give your answer with the correct number of sig digs and do not include units)

4.If a 5.00-kg mass oscillates on a spring with a frequency of 0.667 Hz the spring constant is ___N/m (Give your answer with the correct number of sig digs and do not include units in your answer)