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3 years ago

A projectile is fired with a velocity of 45 m/s at an angle of 32°. What is the

Physics

1 answer:

Dennis_Churaev [7]3 years ago

8 0

Answer:

Explanation:

To calculate adjacent of triangle use

$\cos(32) = \frac{a}{45}$

where 45 is the hypotenuse, and a is the adjacent side (horizontal component)

$45 \cos(32) = 38.16$

then round to 38.2

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Determine the electric field (in N/C) required to give the maximum possible deviation angle. (Enter the magnitude.)

Zigmanuir [339]

Answer:

Maximum angle = 3.43⁰

Explanation:

Say that you are given the following information:

vertical distance between the charge plate = 0.03 m

length of the plate = 0.5 m

velocity of the electrons = 5 × 10⁶ ms⁻¹

the maximum angle is given by the formula:

$tan\theta _{max} = \frac{d}{l}$

where d = vertical distance between the charge plate

l = length of the plate

substituting the values l and d gives:

$tan\theta _{max} = \frac{0.03}{0.5}$

maximum angle, $\theta _{max} = \frac{0.03}{0.5}$

$\theta _{max} = tan^{-1} (\frac{0.03}{0.5} )$

= 3.43⁰

3 0

3 years ago

Move the chemistry book across the physics book again. study the thermometer to determine whether there’s a change in the physic

jekas [21]

Heat is always transferred through the movement of matter in the convection mode of heat transmission.

<h3>What is heat transfer ?</h3>

Heat transfer is the movement of heat from one solid or liquid item to another. Always, heat moves from one body with a greater temperature to one with a lower temperature. To put it another way, heat always transfers from a hotter body to a cooler body.

Heat energy is transferred through the mechanism of conduction when nearby atoms or molecules collide. In solids and liquids, where particles are more closely spaced, conduction happens more easily than in gases, where particles are more widely spaced.

Here we can say that heat is transfer when there is movement between two books and hence there is change in temperature.

Learn more about Heat transfer here:

brainly.com/question/12072129

#SPJ4

6 0

2 years ago

In her hand, a softball pitcher swings a ball of mass 0.245 kg around a vertical circular path of radius 59.8 cm before releasin

GuDViN [60]

Answer:

The velocity is $v_b = 20.17 \ m/s$

Explanation:

From the question we are told that

The mass of the ball is $m = 0.245 \ kg$

The radius is $r = 59.8 \ cm = 0.598 \ m$

The force is $F = 30.9 \ N$

The speed of the ball is $v = 16.0 \ m/s.$

Generally the kinetic energy at the top of the circle is mathematically represented as

$K_t = \frac{1}{2} * m * v^2$

=> $K_t = \frac{1}{2} * 0.245 * 16.0 ^2$

=> $K_t = 31.36 \ J$

Generally the work done by the force applied on the ball from the top to the bottom is mathematically represented as

$W = F * d$

Here d is the length of a semi - circular arc which is mathematically represented as

$d = \pi * r$

$W = 30.9 * 0.598$

$W = 18.48 \ J$

Generally the kinetic energy at the bottom is mathematically represented as

$K_b = \frac{1}{2} * m * v_b^2$

=> $K_b = \frac{1}{2} * 0.245 * v_b^2$

=> $K_b = 0.1225 * v_b^2$

From the law of energy conservation

$K_t + W =K_b$

=> $31.36+ 18.48 = 0.1225 * v_b^2$

=> $v_b = 20.17 \ m/s$

3 0

3 years ago

kirill [66]

Answer:

h the books

Explanation:

HELP me do this question PLEASE REPLY to you kripa and subscribe to you and ask for help me do this question PLEASE let them hate me and subscribe to the world 3rd birthday to you and I am sorry to hear that you are 4th and subscribe to the world of the books 4th century and subscribe to the world of the world of ❤❤

8 0

3 years ago

Jeremiah is riding his bicycle to the east. It takes him 10 seconds to change his velocity from 10 m/s to 15 m/s. What is Jeremi

Temka [501]

Answer:

5 m/s

Explanation:

he accelerates by 5 m/s so he accelerates from 10 m/s to 15 m/s so he accelerates 5 m/s

6 0

4 years ago