The coordinates of a bird flying in the xy plane are given by x(t)=αt and y(t)=3.0m−βt2, where α=2.4m/s and β=1.2m/s2

1 answer:

8 0

We've seen this introduction to a question posted several times before here on Brainly, but it always stops right there. What is the question ? ? ?

You might be interested in

Two blocks A and B with mA = 2.6 kg and mB = 0.81 kg are connected by a string of negligible mass. They rest on a frictionless h

vladimir1956 [14]

Answer:

Explanation:

Given

Mass of block A $(m_a)$ =2.6 kg

Mass of block B $(m_b)$ =0.81 kg

Force of 6.5 N is applied on Block A

Force on Block A is F, Tension

thus

$F-T=m_a\times a$ -----1

where a=acceleration of the system

For Block B

$T=m_b\times a$ -----2

$F=m_b\times a+m_a\times a$

$F=\left ( m_a+m_b\right )a$

$F=\left ( 2.6+0.81\right )a$

$a=\frac{6.5}{3.41}$

$a=1.96 m/s^2$

$T=0.81\times 1.96=1.54 N$

5 0

3 years ago

Which of the following is responsible for preparing the body for defensive action? (2 points)

Flura [38]

Answer:

The sympathetic nervous system is responsible for preparing the body for defensive action. See the explanation below, please.

Explanation:

The sympathetic nervous system, belongs to the parasympathetic, of the autonomic nervous system. Both systems have antagonistic functions. For example the sympathetic dilates the pupils and the parasympathetic, contracts them. In the case of the sympathetic nervous system, it prepares the body for situations of "fight or flight" before external stimuli.

3 0

3 years ago

The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW.

Nookie1986 [14]

(a) $72.3 W/m^2$