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tatiyna
3 years ago
9

A rectangular metal block measures 10cm x4 cm x 5cm. Given that the density of the

Physics
1 answer:
kap26 [50]3 years ago
4 0

10cm=14cm which well give you something idont know lol

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Suppose a police officer is 1/2 mile south of an intersection, driving north towards the intersection at 30 mph. at the same tim
aleksandr82 [10.1K]

In triangle ABC , using Pythagorean theorem

BC = sqrt(AB² + AC²)

r = sqrt(y² + x²)                                eq-1

taking derivative both side relative to "t"

dr/dt = (1/(2 sqrt(y² + x²) ) ) (2 y (dy/dt) + 2 x (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) (2 (0.5) (dy/dt) + 2 (0.5) (dx/dt))

dr/dt = (1/(2 sqrt(0.5² + 0.5²) ) ) ( v₁ + v₂)

15= (1/(2 sqrt(0.5² + 0.5²) ) ) ( - 30 + v₂)

v₂ = 51.2 m/s

3 0
3 years ago
Read 2 more answers
3. Our favorite nature explorer Steve Irwin is currenty warking with crocodiles in the Nile River. One of the big boy crocs gets
xeze [42]

Answer:

K.E = 4800 Joules.

Explanation:

Given the following data;

Mass = 600 kg

Velocity = 4 m/s

To find the kinetic energy;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

K.E = \frac{1}{2}MV^{2}

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting into the equation, we have;

K.E = \frac{1}{2}*600*4^{2}

K.E = 300 * 16

K.E = 4800 Joules.

5 0
2 years ago
A football is kicked at ground level with the speed of 32 m/s at an angle of 40 degrees to the horizontal. how much later does i
LUCKY_DIMON [66]
the question was a football is kicked at ground level with a speed of 32 m/s the an angle of 40 degrees to the horizontal how much later does it hit the ground probably like 30 more or 40 sense it was around 32
4 0
3 years ago
The pressure and absolute temperature of an ideal gas are both tripled, the volume is __________. not changed
ankoles [38]

Answer:

Not Changed

Explanation:

To know what happened with the volume you need to know the Ideal gas Law

\frac{P_{1}V_{1}}{T1} =\frac{P_{2}V_{2} }{T2}

This law is a combination of the other four laws: Boyles's, Charles's, Avogadro's, and Guy-Lussac's.

The initial state is represented by P1, V1, T1 and the final by P2, V2, T2.

In this case:

T_{2} =3T_{1} \\P_{2} =3P_{1}

Replacing on the equation

\frac{P_{1}V_{1}}{T1} =\frac{3P_{1}V_{2}}{3T_{1} }

If we clear from the equation V2

\frac{P_{1}V_{1}3T_{1}}{T_{1} 3P_{1}} ={V_{2}}

Then cancel both P1 and T1

\frac{3V_{1}}{3} =V_{2}

You will found that

V_{1} =V_{2}

3 0
3 years ago
Q.No. 8 What is the ratio of the energy per second
inysia [295]

Answer:just search it up

Explanation:

3 0
3 years ago
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