2 years ago

How do you un rewrap something?

Physics

1 answer:

MAVERICK [17]2 years ago

7 0

Wrap it back up……….

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Which is larger, 65mph or 120kph? As a percentage, how much faster is one than the other?

makkiz [27]

120 kilometers is equivalent to 74.565 miles,
or 14.71% greater than 65 miles.

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3 years ago

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Jake drove 160 kilometres in 2 hours. What was his speed, in kmh-1

ruslelena [56]

Answer:

80 kmh

Explanation:

IDK lol i just divided it by 2 because he drove 80 kilometres in one hour

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3 years ago

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when a man throws a stone in the direction of maximum range the stone rises to a height of 20m . what is the range and how long

jeyben [28]

Answer:

50m

Explanation:im just smart thank me later

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3 years ago

A 0.45kg baseball is pitched towards home plate at 20 m/s. The ball is hit back towards the pitcher with a speed of 30 m/s. What

Inessa05 [86]

Answer:

4.5kgm/s

Explanation:

Change in momentum is expressed as

Change in momentum = m(v-u)

M is the mass

V is the final velocity

u is the initial velocity

Given

m=0.45kg

v = 30m/s

u = 20m/s

Substitute

Change in momentum = 0.45(30-20)

Change in momentum = 0.45×10

Change in momentum = 4.5kgm/s

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3 years ago

You observe a plane approaching overhead and assume that its speed is 600 miles per hour. The angle of elevation of the plane is

scZoUnD [109]

Answer:4.34 miles

Explanation:

first Elevation = $19^{\circ}$

After 1 minute Elevation changes to $59^{\circ}$

Ditsance travelled in 1 minute = $600\times \frac{1}{60}$ =10 mile

Now

tan59= $\frac{H}{x}$

H=xtan59

tan19= $\frac{H}{10+x}$

H= $\left ( 10+x\right )tan19$

Equating H

we get

1.319x=10tan19

x=2.61 miles

H= $2.61\times tan59$ =4.34 miles

4 0

3 years ago