Which organism is a producer

1-oak tree

2-mushroom

3-mountain lion

4-butterfly

Why is it harder to hear someone through a wall?

How many nonradioactive elements can be found in smartphones?

A 72 kg sled is pulled forward from rest by a snowmobile and accelerates at 2.0m/s^2 (forward) for 5.0 seconds. The force of friction acting on sled is 120 N (backwards). The total mass of a snowmobile and driver is 450 kg.

Consider a small but known volume of metal that has a large thermal conductivity. (a) Since the thermal conductivity is large, spatial temperature gradients that develop within the metal in response to mild heating are small.

A curve plotted as a function of frequency defining the sound pressure level required to give equal loudness is?

What effect will taking a dose of antibiotics that is too small have on the bacteria you are trying to destroy? a. all of the bacteria will pass on their genes b. none of the bacteria will pass on their genes c.

Multiply 0.00032 cm by 4.02 cm and express the answer in scientific notation

Apply why does a box on the seat of a car slide around on the seat when the car speeds up slows down or turns a corner?

Solve the following automotive-services problem. Remember I = E/R, where (I = amps) against resistance (R = ohms) in the electric field (E = volts.). Resistance = 0.2 ohm Current = 30 amps Voltage = 6 (T/F)

1: Explain how you can use Boyle's Law to determine the new volume of gas when its pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 L. Assume the temperature and number of particles are constant.