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Anna007 [38]
3 years ago
8

A plane traveled for 3 hours at a velocity of 1200 km/hr North. What is the distance traveled?

Physics
1 answer:
Daniel [21]3 years ago
4 0

Answer:

the answer is 3600 kilometers

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You apply a force to a cart. The force that you apply is directed to the right. Assume that there is friction acting on the cart
amid [387]

Answer:

As we know that friction force always oppose the motion of body.In other words we can say that friction act opposite to the direction of motion of the body.It tries to stop the body is body is in motion.The value of friction force varies and reaches up to a maximum value.If the body is in rest condition then friction force will be static friction and the body is in moving position then the friction force will be kinetic friction.

Here given that we apply a force in the right direction then friction will act in the left direction.

4 0
2 years ago
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. Consider the case where the protons are a distance d = 1.93 ✕ 10^
Bond [772]

Answer: 61.2N

F=kq1q2/r^2

F=8.98E9(1.6E-19)(1.6E-19)/(1.93E-15)^2

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6 0
3 years ago
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ahrayia [7]
1. 12m/s and here’s how. The equation for calculating velocity of a wave is lambda x frequency. So 2m x 6Hz. Hz can be 1/s so the only unit of measurement we get is meters and seconds. So the answer will be 12m/s.

2. Frequency=2Hz period= 0.5 seconds
Equation for frequency is velocity/wavelength. 10m/s divides by 5m = 2Hz.
Equation for period is 1 / frequency. 1 divided by 2 = 0.5 seconds

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7 0
3 years ago
A golf ball is hit so that it leaves the club face at a velocity of 45m/s at an angle of 40° to the horizontal. by ignoring the
tatuchka [14]

Answer:a)45cos40 b)45sin40 c) 2.95 d)102

Explanation:

a) v_{x} = 45 cos40

b) v_{y}=45sin40

c) Since air resistance is negligible, the only force acting on the golf ball is gravity. Thus, its vertical acceleration is -<em>g</em>. We know the final velocity must be 0 m/s, because this will be when the golf ball reaches the maximum height and starts to change direction (it falls back to the ground). We also know initial velocity in the vertical direction (see part b). Thus, we can use this equation: v_{f} = v_{i} + at.

0 m/s = 45sin40 + (-9.8m/s^2)t\\t = 2.95s

d) The horizontal distance traveled is dependent on (1) how long the ball is in the air and (2) what the horizontal velocity is. (1) was found in part c, and (2) was found in part a.

x=vt\\x=45cos40(2.95) =102m

6 0
2 years ago
A boy is inning with a kinetic energy of 810j. If the boy has a mass of 80kg. What is his speed ?
Eva8 [605]
His speed is 4.5 m/s
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