In operant conditioning, many complex behaviors are learned through shaping. T or F

Would you rather be hit by a 1-kg mass traveling at 10m/s or a 2-kg mass traveling at 5m/s? Why?

yawa3891 [41]

Answer:

a 2 kg mass traveling at 5ms

Explanation:

because it wouldnt go so fast or be so heavy

3 0

3 years ago

An automobile traveling 71.0 km/h has tires of 60.0 cm diameter. (a) What is the angular speed of the tires about their axles? (

Andrei [34K]

Explanation:

We have,

Initial speed of an automobile, u = 71 km/h = 19.72 m/s

Diameter of the tie, d = 60 cm

Radius, r = 30 cm

(a) The angular speed of the tires about their axles is given by :

$\omega=\dfrac{v}{r}\\\\\omega=\dfrac{19.72}{0.3}\\\\\omega=65.73\ rad/s$

(b) Final angular velocity of the wheel is equal to 0 as its stops. The angular acceleration of the wheel is given by :

$\omega_f^2-\omega_i^2=2\alpha \theta$

$\theta=40\ rev\\\\\theta=251.32\ rad$

$0-\omega_i^2=2\alpha \theta\\\\\alpha =\dfrac{\omega_i^2}{2\theta}\\\\\alpha =\dfrac{(65.73)^2}{2\times 251.32}\\\\\alpha =-8.59\ rad/s^2$

(c) Let the car move a distance d during the braking. So,

$d=\theta r\\\\d=251.32\times 0.3\\\\d=75.39\ m$

Therefore, the above is the required explanation.

7 0

4 years ago

Need help don't have much time left

klemol [59]

my dude it is #1 that is my answer

7 0

3 years ago

The concentration of ozone in los angeles is 0.67 ppm on a summer day. what is the partial pressure of o3 if the total pressure

Katarina [22]

We use the Raoult's Law to answer this question.

Partial Pressure = Mole Fraction*Total Pressure

When concentration is expressed in ppm, it means 'parts per million'. So, there can be 0.67 mol of ozone per 10⁶ mol of mixture.

Mole fraction = 0.67/10⁶ = 0.67×10⁻⁶

Partial pressure = 0.67×10⁻⁶(735 torr) = <em>4.92×10⁻⁴ torr</em>

5 0

3 years ago

when an object is immersed in liquid at rest,why is the net force on the object is the horizontal direction equal to zero?

Marizza181 [45]

Answer:

The pressure is the same on points that are at the same level but on opposite sides.

6 0

3 years ago