2 years ago

I need help by today guys plz help

Physics

1 answer:

NISA [10]2 years ago

5 0

radio waves bc they have the longest wave lenthgs in a magnetic spectrum

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In nuclear physics wht units are used to measure the radius of an atom ?

Alecsey [184]

Angstrom = 10^-10 m
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6 0

2 years ago

A projectile is launched with an initial speed of 60.0 m/s at an angle of 30.0° above the horizontal. The projectile lands on a

vodka [1.7K]

Answer:

51.96 m/s^-1

Explanation:

a) see the attachment

b) As we know the velocity of the projectile has two component, horizontal velocity v_ox. and vertical velocity v_oy as shown in the figure. At the highest point of the trajectory, the projectile has only horizontal velocity and vertical velocity is zero. Therefore at the highest point of the trajectory, the velocity of the projectile will be

v_ox=v_o*cosФ

=60*cos (30)

= 51.96 m/s^-1