1,314 Answered Questions for the topic physical science

Physical Science

09/20/16

A basketball is thrown at an average speed of 25 m/s. How long will it take to travel a distance of 75 m?

The homework is super confusing
Physical Science

09/19/16

A bullet of mass 60.0 kg travels with a velocity of 125 m/s. What is the momentum of the bullet ?

I'm not very good at physical Science and I need help with my homework 
Physical Science

09/15/16

Whats a difference between elements,compound and mixture?

I'm just studying for test and I hope someone can help me with this question please and thank you.
Physical Science

09/14/16

Pls help ASAP

According to Boyle's law, how would you reduce a gas's volume?by decreasing its pressureby decreasing its temperatureby increasing its pressureby increasing its temperature
Physical Science Astronomy Physics B Astrophysics

09/13/16

Astrophysics question

Object A emits most strongly at 400 nm, while object B emits most strongly at 800 nm. What can we say about their relative temperatures? A’s temperature is the same as B’s.Nothing. Temperature is... more
Physical Science Physics

08/02/16

A 10 µC charge is at the origin. A -5 µC charge is on the x-axis 10 cm to the right of the origin.

A 10 µC charge is at the origin. A -5 µC charge is on the x-axis 10 cm to the right of the origin. At what point other than at infinity can a 1 µC charge be placed so that there will be no net... more
Physical Science Physics

08/02/16

A 10 µC charge is at the origin. A -5 µC charge is on the x-axis 10 cm to the right of the origin.

A 10 µC charge is at the origin. A -5 µC charge is on the x-axis 10 cm to the right of the origin. At what point other than at infinity can a 1 µC charge be placed so that there will be no net... more
Physical Science Physics

08/01/16

To test for the blind spots in your eyes?

A. do not use eyeglasses unless you need them. B. focus intently on whatever you’re viewing. C. keep your eyes wide open in bright light. D. close one eye.
Physical Science

08/01/16

The radiation curve of sunlight peaks in the?

A. white. B. yellow-green part of the spectrum. C.orange part of the spectrum. D. red part of the spectrum.
Physical Science Physics

07/24/16

The radiation curve of sunlight peaks in the

A. yellow-green part of the spectrum. B. red part of the spectrum. C. white. D. orange part of the spectrum.
Physical Science Physics

07/24/16

The function of a lens is to change the

A. refraction of light rays or waves. B. absorption of light rays or waves. C. frequencies of light in various directions. D. direction of light rays or waves.
Physical Science Physics

07/24/16

A diffraction grating commonly

A. produces multiple reflections. B. converges light of different colors. C. disperses light into its component colors. D. spreads light according to amplitude.
Physical Science Physics

07/24/16

Polarization is a property that illustrates

A. the particle nature of light. B. the wave nature of light. C. both the particle and wave nature of light. D. none of the above
Physical Science Physics

07/13/16

A charge of 38 C passes at a steady rate through a resistor in a time of 6 s.

A charge of 38 C passes at a steady rate through a resistor in a time of 6 s. What is the current through the resistor?
Physical Science Physics

07/13/16

A 24 O resistor has a voltage difference of 5 V across its leads.

What is the current through the resistor? What is the power being dissipated in this resistor?
Physical Science Physics

07/13/16

A 18 V battery in a simple circuit produces a current of 3.5 A through the circuit.

A 18 V battery in a simple circuit produces a current of 3.5 A through the circuit. How much power is being delivered by the battery?
Physical Science Physics

07/13/16

Two resistors, each having a resistance of 17 O, are connected in parallel.

Two resistors, each having a resistance of 17 Ω, are connected in parallel. What is the equivalent resistance of this combination?
Physical Science Physics

07/13/16

A 17 O resistor in a circuit has a voltage difference of 4 V across its leads.

A 17 Ω resistor in a circuit has a voltage difference of 4 V across its leads. What is the current through this resistor?
Physical Science

06/16/16

is a device that converts electrical energy into mechanical energy is a motor

Electrical energy
Physical Science

06/03/16

What is necessary to fully describe a scalar measurement? What is necessary to fully describe a vector measurement?

I need these two answered
Physical Science Science Chemistry Stoichiometry

05/23/16

What is the % Sn and % Cu in the sample?

You are given a piece of metal alloy that is made of tin and copper. If the density of the sample is found to be 8.59 g/mL what is the % Sn and % Cu in the sample?
Physical Science

05/18/16

what is the speed of a crow if it flies 100m in 6 seconds

what is the speed of a crow if it flies 100m in 6 seconds
Physical Science

04/24/16

a 7.5kg block is placed on a table.if its bottom surface area is 0.6m2 how much pressure does the block exert on the tabletop?

if you can please show me how you got your answer . Thanks!

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.