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dolphi86 [110]
3 years ago
5

The x axis of a trajectory represents its ____________.

Physics
1 answer:
lubasha [3.4K]3 years ago
4 0

#1

The x axis of the trajectory will show the displacement in X direction only

So it is the Horizontal range

Correct answer would be

<em>Displacement in the horizontal direction(my guess)</em>

2

The stone is projected horizontally at height 64.8 m

now we can use kinematics in Y direction

\Delta y = v_y * t +\frac{1}{2} gt^2

now we have

64.8 = 0 + \frac{1}{2}*9.8*t^2

t = 3.64 s

<em>so here it will fall in the air for time t = 3.64 s</em>

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Solve for the missing variable for each set. Showing ALL work through GUESS Method. Given, Unknown, Equation, Setup, Solve. 1. P
Lelechka [254]

Answer:

(1) P = 100 kg-m/s (2) M = 40 kg.

Explanation:

We need to solve the missing variable :

1. P=?, M=20 kg, V=5 m/s

If M is mass, V is velocity, then momentum P is given by :

P = MV

P = 20 kg × 5 m/s

P = 100 kg-m/s

(2) P= 3000 kg(m/s), M=?, V=75 m/s

M=\dfrac{P}{V}\\\\M=\dfrac{3000}{75}\\\\M = 40\ kg

Hence, P = 100 kg-m/s and M = 40 kg.

5 0
3 years ago
Help me slove this problem 115 divided by 2
zhenek [66]
115 divided by 2 equals 57.5
4 0
3 years ago
Read 2 more answers
Suppose a pendulum bob is swinging back and forth. If the highest point is 12.5 cm above the lowest point, what would be speed o
Colt1911 [192]

Answer:

The speed of the bob  when it passes the lowest point  V = 1.57 \frac{m}{s}

Explanation:

Given data

H = 12.5 \ cm = 0.125 \ m\\

When a pendulum swinging back & forth then at highest point the velocity is zero and lowest point velocity is maximum.

Velocity at lowest point is given by  

V = \sqrt{2 g H}

V = \sqrt{2 (9.81)(0.125)}

V = 1.57 \frac{m}{s}

Therefore the speed of the bob  when it passes the lowest point V = 1.57 \frac{m}{s}

7 0
3 years ago
A biology student views several different prokaryotic and eukaryotic cells under a microscope. How do the prokaryotic cells appe
Fofino [41]

Answer:

The prokaryotic cells are smaller than the eukaryotic cells.

Explanation:

Its just the simple process of elimination. Prokaryotic cells lack of a lot of things, including mitochondria, so it couldn't be option C. BOTH prokaryotic and eukaryotic cells have cytosol AND ribosomes, so the answer couldn't be D or A, and you're left with option B. Meaning option B is the correct choice.

7 0
4 years ago
A technician wearing a brass bracelet enclosing area 0.00500 m2 places her hand in a solenoid whose magnetic field is 4.50 T dir
notka56 [123]

Answer:

39.375 A

Explanation:

To find the induced current, we use the relation

e = -ΔΦ/Δt, where

ΔΦ = change in magnetic flux of the bracelet

Δt = change in time, = 20 ms

Also, Φ = A.ΔB, such that

A = area of the bracelet, 0.005m²

ΔB = magnetic field strength of the bracelet = 1.35 - 4.5 = -3.15 T

ΔΦ = A.ΔB

ΔΦ = 0.005 * -3.15

ΔΦ = -.01575 wb

e = -ΔΦ/Δt

e = -0.01575 / 20*10^-3

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From the question, the resistance of the bracelet is 0.02 ohm, so

From Ohms Law, I = V/R

I = 0.7875 / 0.02

I = 39.375 A

6 0
3 years ago
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