3 years ago

What is the first velocity of the car with four washers at

Physics

2 answers:

VARVARA [1.3K]3 years ago

5 0

Answer:

0.28

0.56

Explanation:

dsp733 years ago

5 0

Answer:

0.13 m/s

0.36 m/s

Explanation:

You might be interested in

A 80 kg block starts from rest at the top of a 15m frictionless ramp. The block slides down the frictionless ramp onto a rough h

Nadusha1986 [10]

Answer:

W(fric) = -12000 J

Explanation:

Given that

mass ,m= 80 kg

Initial speed ,u= 0 m/s

Height ,h= 15 m

Final speed ,v= 0 m/s

We know that

Work done by all the forces = Change in the kinetic energy

$W_{gravity}+W_{fric}=\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2$

$W_{gravity}+W_{fric}=\dfrac{1}{2}m\times 0^2-\dfrac{1}{2}m\times 0^2$

$W_{gravity}+W_{fric}=0$

W(fric)= - m g h

W(fric) = - 80 x 10 x 15 ( g=10 m/s²)

W(fric) = -12000 J

negative sign indicates that force and displacement is in opposite direction.

5 0

3 years ago

The elements in group 17 of the periodic table are all called halogens. All halogens have the same

Savatey [412]

Answer:

All halogens have the same NUMBER OF VALENCE ELECTRON

The group pf periodic table is based on their valence electron

Hope this is correct and helpful

HAVE A GOOD DAY!

8 0

3 years ago

Read 2 more answers

In this electric motor, an electric current causes the coil to rotate, changing

mojhsa [17]

Answer:

Explanation:

vahwhgdayeggev2hveheh

7 0

3 years ago

Read 2 more answers

A golfer strikes a golf ball with an initial velocity of 50 m/s at an angle of 35° to the horizon.

avanturin [10]

Answer:

for X, it's 50 times cos 35.

for y, it's 50 times sin 35.

5 0

3 years ago

Respiratory function deteriorates as a result of pneumonia because inflammation. True or False

Fittoniya [83]

true ........i really dont kno but ok hope this helps

5 0

3 years ago