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myrzilka [38]
3 years ago
12

1.The lunch lady pushes a 100 kg zombie with 300 N of force. How much is the zombie accelerated?

Physics
1 answer:
Molodets [167]3 years ago
5 0

Answer:

1. A=3.00m/s  2.m=50kg

Explanation:

1. Use the formula a=f/m

a=300/100

a=3

2.Use the formula m=f/a

m=1000/20

m=50kg

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Which microscope is the most powerful and can map the atoms on the surface of an object?
solniwko [45]
<span>Scanning electron microscopes</span><span><span /> allow scientists to find the shape and surface texture of small objects. The microscopes slide a beam of electrons across the surface of something, and it </span><span><span>produces a detailed map of the surface of the object.</span> </span>


5 0
4 years ago
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The voltage across a conductor is increasing at a rate of 2 volts/min and the resistance is decreasing at a rate of 1 ohm/min. U
Lelechka [254]

Answer:

3.5 amperes

Explanation:

I = E/R

I = ?

E = 70volts

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Therefore , I = 70/20

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3 0
3 years ago
A stone is thrown vertically upward with an initial velocity of 40m/s. Taking g = 10 m/s^2 find the maximum height reach by the
Kitty [74]

Explanation:

u=40

v=?

h=?

v²-u²=2gs

0²-40²=2×10×s

160=20s

s=160/20

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total distance= upward distance ×downward distance

=80+80

=160m

total displacement=0 because u and v is the same.

3 0
3 years ago
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Nancy ran a distance of 5km in 30 minutes. What is her speed in meters(m) per hour)h)
Virty [35]

The speed of Nancy who ran a distance of 5 km in 30 minutes is 10000 meters(m) per hour(h).

<h3>What is the rate of speed?</h3>

The rate of speed is the rate at which the total distance is travelled in the time taken. Rate of speed can be given as,

s=\dfrac{d}{t}

Here, (d) is the distance travelled by the object and (t) is the time taken but the object to cover that distance.

Nancy ran a distance of 5 km in 30 minutes. There are 60 minutes in one hour. Thus, the time in hour for which Nancy ran is,

t=\dfrac{30}{60}\\t=0.5\rm\; hr

The meters in 5 kilometers is,

d=5\times1000\\d=5000\rm\; m

She ran 5000 kilometers in 0.5 hours. Thus, the speed of her is,

s=\dfrac{5000}{0.5}\\s=10000\rm\; km/hr

Thus, the speed of Nancy who ran a distance of 5 km in 30 minutes is 10000 meters(m) per hour(h).

Learn more about the rate of speed here:

brainly.com/question/359790

#SPJ4

7 0
2 years ago
A ball is tossed up in the air. at its peak, it stops before beginning to fall. the ball at its peak has
Arte-miy333 [17]
The projectile (ball) reaches an instantaneous vertical speed (Vy) of zero at maximum height.

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The maximum height, Yf, can be solved using Vfy^2=Viy^2 + 2gy. At maximum height Vfy=0.
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4 years ago
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