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EleoNora [17]
3 years ago
7

a man pulls a box with a force of 90.00 N directed along the handle which makes angle of 45 degrees with the ground. Find the ho

rizontal and vertical components of this force.
Physics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

both are 45√2N

Explanation:

90 sin45°=90 cos45°=45√2N

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Which mechanism(s) of heat transfer will work in a vacuum?
slavikrds [6]
The answer is D) none of the above
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4 years ago
5. Calculate how long in seconds it will take for a light pulse to travel from earth to the moon. The distance from earth to moo
solniwko [45]

Answer:

0.13 seconds

Explanation:

Since 1 Km = 0.621 miles

3.84 x 105 km = 3.84 x 105 × 0.621 = 23846.4 miles

Speed = distance/time

time= distance/speed

Time= 23846.4/186,000

Time= 0.13 seconds

3 0
3 years ago
6. How much voltage would be necessary to generate 100.5 amps of current in a circuit that
dlinn [17]

Answer:

572.85 v

Explanation:

V = IR

V = 100.5 * 5.7 = 572.85 v

7 0
2 years ago
At time t=0 a proton is a distance of 0.360 m from a very large insulating sheet of charge and is moving parallel to the sheet w
Yuki888 [10]

Explanation:

Formula for the electric field due to the infinite sheet of charge is as follows.

               E = \frac{\sigma}{2 \epsilon_{o}}

where,   \sigma = surface charge density

Now, formula for electric force acting on the proton is as follows.

             F = eE

where,    e = charge of the proton

According to the Newton's second law of motion, the net force acting on the proton is as follows.

                       F = ma

                 a = \frac{eE}{m}

                    = \frac{e(\frac{\sigma}{2 \epsilon_{o}})}{m}

                    = \frac{e \sigma}{2m \epsilon_{o}}

According to the kinematic equation, speed of the proton in perpendicular direction is as follows.

              v_{f} = v_{i} + at

                     = (0 m/s) + \frac{e \sigma}{2 m \epsilon_{o}}t

                     = \frac{1.6 \times 10^{-19}C \times 2.34 \times 10^{-9} C/m^{2} \times 5.40 \times 10^{-8}s}{2 \times (1.67 \times 10^{-27} kg)(8.85 \times 10^{-12} C^{2}/Nm^{2}}

                     = 683.974 m/s

Hence, total speed of the proton is as follows.

                v' = \sqrt{(960 m/s)^{2} + (683.974 m/s)^{2}}

                    = \sqrt{921600 + 467820.43}

                    = \sqrt{1389420.43}

                    = 1178.73 m/s

Therefore, we can conclude that speed of the proton is 1178.73 m/s.

3 0
3 years ago
What pattern does the earth revolve around the sun?.
Whitepunk [10]

Answer: The Earth moves around the Sun in an extended circular or oval pattern. Or otherwise known as an "elliptical" orbit.

Hope this helps!

7 0
3 years ago
Read 2 more answers
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