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Kruka [31]
4 years ago
10

An object becomes positively charged when it

Physics
1 answer:
Montano1993 [528]4 years ago
8 0

Answer:

D

Explanation:

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A boy is pulling a wagon with a force of 70.0 N directed at an angle of 30 degrees above the horizontal. What are the x and y co
bogdanovich [222]

Answer:

x component is 60.60 N and y component is 35 N ⇒ answer A

Explanation:

A boy is pulling a wagon with a force of 70.0 N directed at an angle

of 30 degrees above the horizontal then,

F_{x} is the horizontal component of the force in the direction

of positive part of x-axis

F_{y} is the vertical component of the force force in the direction

of positive part of y-axis

The x component of the force F_{x} is the force multiplied by

cos(30)°

The y component of the force F_{y} is the force multiplied by

sin(30)°

→ The x component F_{x} =  F cos(30)

→ The x component F_{x} = 70 cos(30) =  60.60 N

→ The y component F_{y} = F sin(30)

→ The y component F_{y} = 70 sin(3) = 35 N

<em>x component is 60.60 N and y component is 35 N</em>

7 0
4 years ago
A car traveling at a speed of 24 m/s comes to a stop at a red light.
Degger [83]

u=24m/s

v=0m/s

-a=8m/s^2

now

v=u+at

0=24-8t

t=3s

4 0
3 years ago
Read 2 more answers
Star A and Star B have measured stellar parallax of 1.0 arc second and 0.75 arc second, respectively. Which star is closer? How
zhuklara [117]

Answer:

Star A is closer than Star B

Explanation:

As we know that in parallax method of distance measurement the angle subtended by the star when it covers a distance of one Parsec arc length, it is known as parallax angle

Here we can say

angle = \frac{1 Parsec}{distance}

so we have

distance = \frac{1 Parsec}{angle}

so here we have

angle subtended by Star A = 1 arc sec

angle subtended by star B = 0.75 arc sec

now we have

distance for star A is given as

d_a = \frac{1 Parsec}{1} = 1 Parsec

distance of star B is given as

d_b = \frac{1 Parsec}{0.75} = 1.33 Parsec

So star A is closer than star B

7 0
3 years ago
Encontrar el peso de un elefante cuya masa es de 4500kg. Recordar que la gravedad es de 9.8m/s2
dusya [7]

la respuesta es 459.183673 kg s2 / m

7 0
3 years ago
Read 2 more answers
Jada was walking home for 30 mins. How fast was she walking, if her house is 4 km away fron school?
earnstyle [38]

Answer:

8 km an hour (about 5mph)

Explanation:

It depends on what you are looking for because there is no unit specified, but if you want kilometers an hour then all you have to do is multiply both sides by 2.

30 x 2 = 60 (minutes)

4 x 2 = 8 (kilometers)

Hope this helped at least a little bit!

3 0
3 years ago
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