3 years ago

Helpppppppppppppppppppppppppppopppppppppp

Physics

1 answer:

harkovskaia [24]3 years ago

7 0

Answer:

I think it's 2 the photo is hard to tell what they are exactly talking about.

You might be interested in

Spymaster Paul, flying a constant 215km/h horizontally in a low-flying helicopter, want to drop secret documents into his contac

aleksandrvk [35]

Answer:

$\theta = 49.56 degree$

Explanation:

Relative horizontal velocity of plane with respect to the car is given as

$v_r = v_p - v_c$

so we have

$v_p = 215 km/h$

$v_c = 155 km/h$

now we have

$v_r = 215 - 155$

$v_r = 60 km/h$

$v_r = 16.67 m/s$

Now time taken by the object to drop the vertical height is given as

$y = \frac{1}{2}gt^2$

$78 = \frac{1}{2}(9.81)t^2$

$t = 3.98 s$

so the distance of the car must be

$d = v_r\times t$

$d = 16.67 \times 3.98$

$d = 66.47 m$

Angle of the car with horizontal is given as

$tan\theta = \frac{y}{x}$

$tan\theta = \frac{78}{66.47}$

$\theta = tan^{-1}(1.17)$

$\theta = 49.56 degree$

5 0

3 years ago

____________ is the number of complete movements of a wave per second.

Citrus2011 [14]

hertz: A unit for measuring frequency, equal to one cycle per second. If a sound wave has a frequency of 20,000 Hz,

8 0

3 years ago

Read 2 more answers

A ball is dropped from the top of a building.

kotegsom [21]

Answer:

after it has hit the ground

5 0

3 years ago

What is the magnetic force of a 30m long power line that carries a current of 50A. The magnetic field runs perpendicular to the

Ne4ueva [31]

Answer:

F=BILsin90 when perpendicular sin90 =1 30T x50x30 so you can get 45000N

8 0

3 years ago

Explain how the mass of a planet affects the motion of the planet around the sun?

vodomira [7]

Answer:

The gravitational attraction of the Sun is what holds the planets in their elliptical orbits. So to explain this the mass effects the motion of the planets because the strength of gravitational force depends of the mass.

Explanation:

6 0

3 years ago